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Up Topic The Rybka Lounge / Test Positions / Cranky Walters
- - By user923005 (****) [us] Date 2017-03-24 00:30
These positions are from various test sets by Walter Eigenmann.  How many of them can your favorite engine solve?
Stockfish has an awful time with these.

r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6+;

4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - bm Bg7;

8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1;

8/8/4p1Pk/1rp1K1p1/4P1P1/1nP2Q2/p2b1P2/8 w - - bm Kf6;

2kb4/p7/r1p3p1/p1P2pBp/R2P3P/2K3P1/5P2/8 w - - bm Bxd8;

r1k1n2n/8/pP6/5R2/8/1b1B4/4N3/1K5N w - - bm b7;

3r2k1/p1R2ppp/1p6/P1b1PP2/3p4/3R2B1/5PKP/1r6 w - - bm f6;

r1br2k1/7p/p2q1ppB/1p1P4/2P5/5N2/PQ3PPP/4R1K1 w - - bm Ng5;

4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - - bm Rxe6;

1k5r/pb3p1p/1q2rp1b/2p5/1pQ1P3/1P3N2/P3BPPP/3R1RK1 w - - bm Rd5;

2r1rbk1/p1qn2p1/3n1pp1/P1p1p3/1p2P1P1/1N3Q1P/1PP2P2/R1BR1BK1 w - - bm Rxd6;

r1r3k1/1bq2pp1/p4n1p/1p1npB2/PP6/2P2N2/1BQ2PPP/R3R1K1 b - - bm Nf4;

3rrnk1/p1n1qpp1/1p5p/2pRP3/2P4P/1P2Q1PB/PB5K/4R3 w - - bm Red1;

r1b2rk1/pp3pb1/3q2pp/2nP4/6P1/2P2N2/P1Q1BPP1/2BR1RK1 w - - bm Rd4;

5rk1/ppqb2pp/2n1p3/3pP3/2pP4/P1P1BN1Q/2P2PP1/R3K3 b Q - bm Rxf3;

2k5/1bp2B2/1b5r/1N1Pp2p/6r1/6B1/1P2RP2/R5K1 b - - bm h4;

r4rk1/ppnqp2p/3p2p1/2pP4/P1P2B1P/6P1/1P3PK1/R2Q1R2 b - - bm Rxf4;

r1q2k2/pppb3r/2n1pBp1/3pPp1p/3P1Q1P/P2B4/2P2PP1/R3K2R w KQ - bm g4;

r3kb1r/4Pp2/pn3P2/1pp3B1/2p5/2N3P1/PP3P1P/3RKB1b w kq - bm h4;

1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - bm Rxb3+;

r3rnk1/1bq1bpp1/pp2p3/3pP2Q/P4p2/1NNB1R2/1PP4P/2KR4 w - - bm Rg1;

4K2k/1pQp3p/1R4p1/1P4P1/8/3P3P/1q3r2/8 w - - bm Qd8;

5B2/1p1nNp2/8/1P2R3/3p3q/8/p1K1P1Q1/k3b3 w - - bm Ng6;

2r1k1r1/3q4/p1nBpp1p/8/B5p1/4RbK1/PP1Q1P1P/2R5 w - - bm h4;

6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5;

Attachment: eigrock.7z - The 25 positions used for analysis (573B)
Attachment: eigout.7z - The arena output logs for Komodo and Houdini analysis (84k)
Attachment: kh-eig.epd - EPD records decorated with the Komodo and Houdini analysis (10k)
Parent - - By user923005 (****) [us] Date 2017-03-24 00:43
Here is Houdini Tactical output for the first problem:

FEN:
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - 0 1


Houdini 5 Tactical:
12/33  00:00     2,997,885  18,973,000  -4.45  Nxe6 Nd5 Nxg5 Bxc2 Ke6 Nc7+ Kf6 Ne8+ Kf7 Ng7 Ne6 Bxf5 Rxg7 Bxe6+ Kf6 Rb8
12/33  00:00     3,966,971  18,800,000  -4.47  Nxe6 Nd5 Nxg5 Bxc2 Ke6 Nc7+ Kf6 Ne8+ Kf7 Ng7 Ne6 Bxf5 Rxg7 Bxe6+ Kf6 Rb8 Rxh7+ Kxh7 Kxe6 Rxb2
13/38  00:00    12,015,605  18,745,000  -4.73  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 d3 Bb3 Nxh7 Ne3+ Kf6 Nbd5+ Ke6 Ne7+ Kxd6 N3xf5+ Ke5 Nxd4 Kxd4 Kxh7 Kc3
14/38  00:01    15,043,690  18,946,000  -4.73  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 d3 Bb3 Nxh7 Ne3+ Kf6 Nbd5+ Ke6 Ne7+ Kxd6 N3xf5+ Ke5 Nxd4 Kxd4 Kxh7 Kc3
15/46  00:01    29,992,202  18,910,000  -4.96  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kxd6 Nb5+ Kc5 Nxd4 Kxd4 Bxf5 Ke5 Ra5+ Kf6 Nd7+ Ke7 Rd5 Nf7+ Kg7
16/46  00:03    53,108,277  18,899,000  -5.15  Nxe6 Nd5 Nxg5 Bxc2 Ke6 Nc7+ Kf6 Ne8+ Kf7 Ng7 Ne6 Bxf5 Rxg7 Bxe6+ Kf6 Ra5 b4 Rb5 Rg5 Rxg5 Kxg5 Kg7 Kf4
17/46  00:03    68,360,579  18,878,000  -5.14  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kxd6 Nb5+ Kc5 Nxd4 Kxd4 Bxf5 Ke5 Ra5+ Kf4 Rd5 b4 Kg7 Nxh7 Bxh7
18/46-  00:05    92,412,355  18,917,000  -5.28  Nxe6 Nd5
18/47-  00:06   114,085,290  18,897,000  -5.38  Nxe6 Nd5
18/47+  00:07   137,355,745  18,906,000  -5.29  Nxe6
18/47  00:07   137,844,462  18,903,000  -5.17  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kxd6 Nb5+ Kc5 Nxd4 Kxd4 Bxf5 b4 h5 Ke5 Bg4 Ne4
18/47  00:07   139,097,796  18,896,000  -5.17  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kxd6 Nb5+ Kc5 Nxd4 Kxd4 Bxf5 b4 h5 Ke5 Bg4 Ne4
18/47-  00:07   140,838,973  18,886,000  -5.24  Nxe6 Nd5
18/47-  00:09   178,389,032  18,909,000  -5.57  Nxe6 Nd5
18/47  00:11   215,970,768  18,944,000  -5.71  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kxd6 Nb5+ Kc5 Nxd4 Kxd4 Bxf5 b4 h5 Nf3 Kg7 Kc5 Nd7+ Kc6 Rb8 Nd4 Bg4 b5
18/47  00:13   251,771,978  18,891,000  -5.71  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kxd6 Nb5+ Kc5 Nxd4 Kxd4 Bxf5 b4 h5 Nf3 Kg7 Kc5 Nd7+ Kc6 Rb8 Nd4 Bg4 b5
19/47  00:14   276,626,977  18,912,000  -5.75  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kf6 Nbd5+ Rxd5 Nxd5+ Ke6 Nf4+ Kxd6 h5 b4 Ra6+ Kc5 Rf6 Kc4 Rxf5 Nf3 Be4 Nd4 Bd3+ Kb3 Rd5 Kc3 Kg7
19/47-  00:16   300,874,736  18,919,000  -5.75  Nxe6 Nd5 Nxg5 Bxc2 Rd4 Ncb6 Ke6 Nc7+ Kf6 Nbd5+ Rxd5 Nxd5+ Ke6 Nf4+ Kxd6 h5 b4 Ra6+ Kc5 Rf6 Kc4 Rxf5 Nf3 Be4 Nd4 Bd3+ Kb3 Rd5 Kc3 Kg7
19/47  00:17   321,207,269  18,897,000  -5.71  Rxg5 Be8+ Kf6 exf5 c4 f4 Rf5 Ra1 Rxf4 Rg1 Kf5 h6 Ke4 Rg8 c5 Kg7 cxd6 Nxd6+ Kd4 Rxf8 Rxf8 Kxf8 Ke5 Nc4+ Kd4
20/47-  00:20   373,288,832  18,859,000  -5.78  Rxg5 Be8+
20/48-  00:23   439,404,048  18,821,000  -5.85  Rxg5 Be8+
20/48  00:30   557,086,864  18,747,000  -5.85  Rxg5 Be8+ Kf6 exf5 c4 f4 Rf5 Ra1 Rxf4 Rg1 Nxh7 Kxh7 Rh4+ Kg8 Kf5 Ne7+ Ke4 Ne6 Kd3 Rg3+ Kc2 Nf5 Rh1 Bc6 Rf1 Nfd4+ Kb1
20/48  00:30   559,138,594  18,743,000  -5.85  Rxg5 Be8+ Kf6 exf5 c4 f4 Rf5 Ra1 Rxf4 Rg1 Nxh7 Kxh7 Rh4+ Kg8 Kf5 Ne7+ Ke4 Ne6 Kd3 Rg3+ Kc2 Nf5 Rh1 Bc6 Rf1 Nfd4+ Kb1
21/48-  00:34   634,453,435  18,676,000  -5.92  Rxg5 Be8+
21/53-  00:41   768,861,981  18,675,000  -5.99  Rxg5 Be8+
21/53-  00:47   882,604,601  18,665,000  -6.09  Rxg5 Be8+
21/53  00:47   882,616,091  18,665,000  -5.99  Nxe6 Nd5 Nxg5 Bxc2 Ke6 Nc7+ Kf6 Ne8+ Kf7 Ng7 Ne6 Bxf5 Rxg7 Bxe6+ Kf6 Ra5 Rg3 Bd7 Rg5 Rxg5 Kxg5 Kg7 Kh5 Be6 Kg5 Ne7 Kf4 Kf6
22/53-  00:50   933,782,947  18,656,000  -6.06  Nxe6 Nd5
22/54-  00:55  1,028,904,500  18,632,000  -6.06  Nxe6 Nd5
22/54+  00:57  1,068,868,620  18,641,000  -5.62  Ng6+
22/54+  00:59  1,112,413,028  18,638,000  -0.50  Ng6+
22/54  01:00  1,113,680,290  18,638,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
22/54  01:00  1,114,026,731  18,637,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
23/54  01:00  1,117,980,604  18,633,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
23/54  01:00  1,120,817,430  18,630,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
24/54  01:00  1,125,406,125  18,627,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
24/54  01:00  1,127,740,128  18,624,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
24/54  01:01  1,137,521,163  18,619,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
25/54  01:01  1,142,741,818  18,619,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
25/54  01:02  1,152,557,052  18,620,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
26/54  01:02  1,160,698,325  18,622,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
26/54  01:04  1,188,143,326  18,613,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
27/54  01:04  1,189,371,964  18,611,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
27/54  01:06  1,230,247,980  18,615,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
28/55  01:07  1,253,050,877  18,622,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
28/55  01:13  1,354,925,638  18,620,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
29/59  01:13  1,361,757,137  18,618,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
29/59  01:17  1,434,931,211  18,629,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
30/59  01:17  1,444,527,946  18,631,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
30/59  01:23  1,555,060,261  18,637,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
30/59  01:31  1,707,259,573  18,644,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
31/59  01:32  1,722,810,080  18,638,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
31/59  01:47  2,005,594,571  18,697,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
32/67  01:49  2,036,620,978  18,698,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
32/67  02:00  2,253,065,427  18,708,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
33/67  02:02  2,277,834,788  18,694,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
33/67  02:27  2,737,871,454  18,641,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
34/67  02:31  2,816,776,010  18,637,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
34/67  02:54  3,246,639,313  18,667,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
35/67  03:01  3,374,440,264  18,669,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
35/67  03:38  4,060,600,152  18,618,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
36/67  03:41  4,122,689,624  18,618,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
36/67  04:24  4,931,929,102  18,656,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
36/67  05:32  6,203,566,017  18,646,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
37/68  05:41  6,353,871,096  18,648,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
37/68  06:45  7,522,479,140  18,583,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
38/68  06:52  7,653,586,532  18,583,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
38/68  08:16  9,252,796,914  18,645,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
39/70  08:38  9,667,470,188  18,643,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
39/70  09:37  10,775,371,579  18,662,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
40/70  09:51  11,018,214,576  18,648,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
40/70  12:04  13,537,286,264  18,702,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
41/71  13:03  14,648,809,114  18,704,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
41/71  16:24  18,460,194,542  18,756,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
42/73  17:28  19,684,663,265  18,774,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
42/73  23:11  26,273,966,790  18,880,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
42/74  29:54  33,992,271,253  18,944,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
43/79  30:37  34,806,355,577  18,948,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
43/79  37:25  42,666,678,298  18,999,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6
44/79  38:08  43,494,571,173  19,011,000   0.00  Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6

Parent - - By Peter Grayson (****) [gb] Date 2017-03-24 22:26
Perhaps this is more up the street of the older engines when pruning is less intensive?

1: , eigrock
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - 0 1


Analysis by Deep Junior 10:

1.Rxg5 Be8+ 2.Kf6 exf5 3.Rxf5 Nb6
  -+  (-5.54)   Depth: 6   00:00:00  5kN
1.Nxe6 Ra7 2.Rxa4 Rxa4 3.Nxc7 Nb6
  -+  (-5.10)   Depth: 6   00:00:00  18kN
1.Nxe6 Ra7 2.Rxa4 Rxa4 3.Nxc7 Nb6
  -+  (-5.10)   Depth: 6   00:00:00  18kN
1.Nxe6 Ra7 2.Rxa4 Rxa4 3.Nxc7 Nb6
  -+  (-5.10)   Depth: 6   00:00:00  18kN
1.Nxe6 Nd5 2.Rxg5 Ra7+ 3.Kf8 Nf6 4.Nd8 Nd7+ 5.Kf7 Ndb6+ 6.Kf8 Ne7
  -+  (-5.48)   Depth: 9   00:00:00  370kN
1.Nxe6 Nd5
  -+  (-5.78)   Depth: 12   00:00:00  2383kN
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Bxf5 6.Kf8 Ra7 7.Ra4 Bg6 8.Rxa7 Nxa7 9.Nf7+ Bxf7 10.Kxf7
  -+  (-6.42)   Depth: 15   00:00:04  34089kN
1.Ng6+ hxg6 2.Rg3 Be8+ 3.Kf8 Ra4 4.Rc3 g4 5.Rxc7 Nb6 6.Kxe8 gxf5 7.Kf7
  -+  (-5.76)   Depth: 15   00:00:04  36813kN
1.Ng6+
  -+  (-5.46)   Depth: 18   00:00:05  47585kN
1.Ng6+
  -+  (-5.16)   Depth: 20   00:00:48  417MN
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Ne7 10.g7+
  =  (0.00)   Depth: 20   00:00:49  419MN
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Ne7 10.g7+
  =  (0.00)   Depth: 21   00:00:53  456MN
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Ne7 10.g7+
  =  (0.00)   Depth: 22   00:01:04  539MN
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Ne7 10.g7+
  =  (0.00)   Depth: 23   00:01:17  653MN
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Ne7 10.g7+
  =  (0.00)   Depth: 24   00:01:38  862MN

(Grayson, Newport, South Wales 24.03.2017)
Parent - - By user923005 (****) [us] Date 2017-03-24 23:48
Houdini also solved that one (see above attachments).
Houdini's data record:
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - acd 44/79;
acs 2288 ; acn 43494571173; ce 0 ; bm Ng6+; pv Ng6+ hxg6 Rg2 Be8+ Kf8 Ra4 b4 Rxb4 c4 Rxc4 d4 Rxd4 Rh2+ Rh4 Rxh4+ gxh4 fxg6 Bxg6; c1 "Houdini 5";

It did take Houdini a full minute to find the best move on my hardware, so four seconds is very impressive.

I would love to have made the right move on this position in a real game.
Capturing the pawn on h7 with the knight, Capturing the pawn on g5 with the rook, and the knight sac to g6 are all candidate moves.  It was not at all obvious to me what the best choice was.  Of course, when you have the correct pv in front of you it is possible to follow the plan, but this is a marvelously complicated position.
Parent - By Peter Grayson (****) [gb] Date 2017-03-25 00:52

> I would love to have made the right move on this position in a real game


Me too!

I ran DJ10 on my O/C'd Q9550 quad with 512 Mb hash.

On same hardware Stockfish 8 64 with 4 Gb hash took 03m:44s to find the key move and after multiple iterations at 34 ply solved it in 04:17

1: , eigrock
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - 0 1


Analysis by Stockfish 8 64:

1.Nxe6 Nd5 2.b3 Bc6 3.Rxg5 Ra7+ 4.Kf8 Nf6
  -+  (-5.65)   Depth: 7/9   00:00:00  10kN
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Ke6 Ng7+ 6.Kf6
  -+  (-6.11)   Depth: 8/11   00:00:00  20kN
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ne4 Ra7+ 4.Ke6 Nde7 5.d4 Bb3+ 6.Kf6
  -+  (-6.08)   Depth: 9/17   00:00:00  47kN
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Bxf5 6.Rf4 Bg6+ 7.Kf8 Ra7
  -+  (-6.18)   Depth: 10/19   00:00:00  104kN
1.Nxe6 Nd5 2.b3 Be8+ 3.Kxe8 Nf6+ 4.Kd8 Nxg4 5.Nxg5 d5 6.Kc7 h6
  -+  (-6.33)   Depth: 11/20   00:00:00  158kN
1.Nxe6 Nd5 2.Rxg5 Ra7+ 3.Kf8 Nf6 4.Nd8 Nd7+ 5.Kf7 Ne5+ 6.Kf8 h6 7.Rg8+ Kh7 8.d4 Nd7+ 9.Kf7 Nf6+ 10.Kxf6
  -+  (-6.66)   Depth: 12/23   00:00:00  310kN
1.Nxe6 Nd5 2.b3 Be8+ 3.Kxe8 Nf6+ 4.Kf8 Nxg4 5.Nxg5 h6 6.Nf3 Kh7 7.Kf7 Ra7+ 8.Ke6 Re7+ 9.Kd5 Re2 10.c4 Nf6+ 11.Kc6
  -+  (-6.87)   Depth: 13/24   00:00:00  470kN
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ne4 Ncb6 4.Ng3 Nd7 5.Ke6 Re8+ 6.Kxd6 Ne5 7.Rh4 Nf3 8.Rg4 Rd8+ 9.Ke6 Nxd2
  -+  (-6.67)   Depth: 14/30   00:00:00  610kN, tb=9
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rc7 Bg4 10.Kg5 h5 11.Kg6 Kg8 12.d4 Rxb2 13.Kg5 Rb5+ 14.Kh4
  -+  (-7.19)   Depth: 15/30   00:00:01  2021kN, tb=18
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ne4 Ncb6 4.f6 Nd7 5.Ke6 Ne5 6.Rh4 Ng6 7.Kxd5 Nxh4 8.Nxd6 Rf8 9.Ke6 Bb3+ 10.Ke5 Nf3+ 11.Kf5
  -+  (-7.13)   Depth: 16/36   00:00:01  2546kN, tb=91
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg3 Bg8 10.Rc3 Nb6 11.Rc6 Nd5+ 12.Kg5 Rxb2 13.Rxd6 Rxd2 14.Rd8
  -+  (-7.26)   Depth: 17/36   00:00:01  3085kN, tb=94
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Nb6 11.d3 Rg8 12.Ke7 Rg6 13.Kd8 Bb3 14.Re8+ Kg7
  -+  (-7.16)   Depth: 18/36   00:00:01  4014kN, tb=136
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.Re7 Nc6 12.Rd7 Rxb2 13.Rxd6 Rxd2 14.Rd7 Rf2+ 15.Kg5
  -+  (-7.24)   Depth: 19/38   00:00:01  4413kN, tb=173
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.Re3 Nc6 12.Rd3 Rb5 13.b3 Ne5 14.Rc3 Nd7+ 15.Ke7 Nc5 16.d3 Rxb3 17.Rxb3 Bxb3
  -+  (-7.57)   Depth: 20/38   00:00:02  6986kN, tb=373
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg1 Bg8 10.Rc1 Nb6 11.Ke7 Nc4 12.d3 Rb7+ 13.Kf6 Rf7+ 14.Ke6 Rf2+ 15.Ke7 Re2+ 16.Kf6 Nxb2 17.Rc8 Nxd3
  -+  (-7.58)   Depth: 21/38   00:00:03  9449kN, tb=663
1.Nxe6 Nd5
  -+  (-7.65 --)   Depth: 22/39   00:00:04  13455kN, tb=1514
1.Nxe6 Nd5
  -+  (-7.72 --)   Depth: 22/41   00:00:05  14981kN, tb=1992
1.Nxe6 Nd5
  -+  (-7.83 --)   Depth: 22/41   00:00:05  17728kN, tb=2212
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg3 Bg8 10.Rc3 Nb6 11.Rc6 Nd5+ 12.Kg5 Rxb2 13.Rxd6 Rxd2 14.Rd8 Rg2+ 15.Kf5 Rf2+ 16.Ke5 Re2+ 17.Kf5 Kg7 18.Kg4 Be6+ 19.Kf3 Rc2 20.Re8 Rc3+ 21.Kf2
  -+  (-7.85)   Depth: 22/41   00:00:06  19245kN, tb=2431
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg3 Bg8 10.Rd3 Rxb2 11.Rd4 Nb6 12.Rxd6 Nd5+ 13.Kg5 Rxd2 14.Rd8 Rg2+ 15.Kf5 Rf2+ 16.Kg4 Nf6+ 17.Kh4 Ne4 18.Rc8 Kg7 19.Rc7+ Kf6
  -+  (-7.85)   Depth: 23/41   00:00:06  20295kN, tb=2526
1.Nxe6 Nd5
  -+  (-7.92 --)   Depth: 24/46   00:00:07  25043kN, tb=3769
1.Nxe6 Nd5
  -+  (-8.00 --)   Depth: 24/46   00:00:08  31053kN, tb=5128
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg1 Bg8 10.Rg3 Rxb2 11.Rd3 Nb6 12.Rxd6 Nd5+ 13.Kg5 Rxd2 14.Rd8 Rg2+ 15.Kf5 Rf2+ 16.Kg4 Nf6+ 17.Kh4 Ne4 18.Rb8 Kg7 19.Rb7+ Kf6
  -+  (-8.02)   Depth: 24/46   00:00:09  33749kN, tb=5706
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.Re3 Nc6 12.Rd3 Rb5 13.b3 h5 14.Rh3 Bxb3 15.Rd3 Kh7 16.Rxd6 Ne5 17.Rd8 Ng4+ 18.Ke7 Kg6 19.Rd3 Kg5 20.Rh3 Ne5 21.Kd6
  -+  (-8.06)   Depth: 25/46   00:00:11  42508kN, tb=7624
1.Nxe6
  -+  (-7.99 ++)   Depth: 26/46   00:00:12  44076kN, tb=8022
1.Nxe6 Nd5
  -+  (-8.06 --)   Depth: 26/46   00:00:13  50011kN, tb=10296
1.Nxe6 Nd5
  -+  (-8.17 --)   Depth: 26/46   00:00:15  60873kN, tb=12373
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg1 Bg8 10.Rc1 Nb6 11.Ke7 Nc4 12.d3 Rb7+ 13.Kf6 Rf7+ 14.Kg5 Nxb2 15.Rc6 Rd7 16.d4 Bd5 17.Rc3 Rg7+ 18.Kf4 Nc4 19.Rc2 Rg8
  -+  (-8.29)   Depth: 26/47   00:00:18  76876kN, tb=15491
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.Re3 Nc6 12.Rd3 Rb5 13.b3 h6 14.Rh3 Kh7 15.Rd3 Ne5 16.Rd4 Bxb3 17.Rxd6 h5 18.Rd8 Ng4+ 19.Ke7 Rb7+ 20.Kd6 h4
  -+  (-8.32)   Depth: 27/48   00:00:22  92943kN, tb=19743
1.Nxe6 Nd5
  -+  (-8.39 --)   Depth: 28/48   00:00:27  117MN, tb=26418
1.Nxe6 Nd5
  -+  (-8.46 --)   Depth: 28/50   00:00:29  128MN, tb=30287
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg1 Bg8 10.Rb1 Nb6 11.b3 Nd5+ 12.Kf5 Bf7 13.Ra1 Rb4 14.d4 Rxd4 15.Ra4 Rd2 16.Ra6 Rf2+ 17.Kg5 Nf6 18.Kh4 Ne4 19.b4 Rf4+ 20.Kh3 Be6+ 21.Kg2
  -+  (-8.54)   Depth: 28/50   00:00:36  160MN, tb=42230
1.Nxe6 Nd5
  -+  (-8.61 --)   Depth: 29/50   00:00:40  185MN, tb=49621
1.Nxe6 Nd5
  -+  (-8.68 --)   Depth: 29/50   00:00:50  230MN, tb=71046
1.Nxe6 Nd5
  -+  (-8.79 --)   Depth: 29/52   00:01:03  296MN, tb=90793
1.Nxe6
  -+  (-8.70 ++)   Depth: 29/56   00:01:06  311MN, tb=96870
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rc7 Bg4 10.Kg5 h5 11.b4 Rb5+ 12.Kh4 Rxb4 13.Kg5 Kg8 14.d3 Rd4 15.Rc3 Ne7 16.Rc7 Rd5+ 17.Kf6 Nc8 18.Rb7 Rxd3 19.Kg6 Rd5
  -+  (-8.81)   Depth: 29/56   00:01:11  340MN, tb=106255
1.Nxe6 Nd5
  -+  (-8.88 --)   Depth: 30/56   00:01:24  408MN, tb=134062
1.Nxe6 Nd5
  -+  (-8.95 --)   Depth: 30/56   00:01:31  443MN, tb=149959
1.Nxe6
  -+  (-8.88 ++)   Depth: 30/56   00:01:31  447MN, tb=151142
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg1 Bg8 10.Rc1 Nb6 11.b3 Nd5+ 12.Kf5 Rxb3 13.Ke4 Rb2 14.Kd3 Be6 15.Ke2 Bg4+ 16.Ke1 Kg7 17.Rc6 Rb6 18.Rxb6 Nxb6 19.Kf2 Be6 20.Ke2 Kf6
  -+  (-8.96)   Depth: 30/56   00:01:36  470MN, tb=157645
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.Re3 Nc6 12.Rd3 Rb5 13.b4 h6 14.Rh3 Kh7 15.Rh5 Nxb4 16.Ke7 Kg6 17.Rh3 Rb6 18.Rg3+ Kf5 19.Rh3 Kg5 20.Rg3+ Kh4 21.Rg1 h5 22.Kd7 Nd3 23.Ke7 Ne5 24.d4 Nf3 25.Ra1
  -+  (-9.03)   Depth: 31/56   00:01:45  520MN, tb=178279
1.Nxe6 Nd5
  -+  (-9.10 --)   Depth: 32/57   00:02:06  630MN, tb=236014
1.Nxe6 Nd5
  -+  (-9.17 --)   Depth: 32/57   00:02:14  674MN, tb=245067
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.Re3 Nc6 12.Rd3 Rb5 13.b4 h6 14.Rh3 Kh7 15.Rh5 Nxb4 16.Ke7 Kg6 17.Rh3 Rb6 18.Rg3+ Kf5 19.Rh3 Kg5 20.Rg3+ Kh4 21.Rg1 h5 22.d4 Nc2 23.Kd7 Ne3 24.Ke7 Nf5+ 25.Kf6 Nxd4 26.Rd1 Rb4 27.Rd3 Rc4
  -+  (-9.23)   Depth: 32/64   00:02:22  716MN, tb=263859
1.Nxe6
  -+  (-9.16 ++)   Depth: 33/64   00:02:26  739MN, tb=278543
1.Nxe6 Nd5
  -+  (-9.23 --)   Depth: 33/64   00:02:36  791MN, tb=293046
1.Nxe6
  -+  (-9.16 ++)   Depth: 33/64   00:02:38  800MN, tb=294537
1.Nxe6 Nd5
  -+  (-9.25 --)   Depth: 33/64   00:02:43  829MN, tb=305966
1.Nxe6 Nd5 2.Nxg5 Bxc2 3.Ke6 Nc7+ 4.Kf6 Ne8+ 5.Kf7 Ng7 6.Ne6 Bxf5 7.Rxg7 Bxe6+ 8.Kf6 Rb8 9.Rg2 Bd5 10.Re2 Na7 11.b4 Nc6 12.b5 Nd4 13.Re3 Nxb5 14.Kg5 Nd4 15.Rd3 Rg8+ 16.Kf4 Rf8+ 17.Kg4 Be6+ 18.Kh4 Nf5+ 19.Kh3 Rb8 20.Kg2 Rb3 21.Rc3 Rxc3 22.dxc3 Kg7 23.Kf3 Kf6
  -+  (-9.40)   Depth: 33/64   00:03:21  1034MN, tb=412183
1.Ng6+
  -+  (-9.33 ++)   Depth: 34/64   00:03:44  1152MN, tb=488378
1.Ng6+
  -+  (-9.25 ++)   Depth: 34/64   00:03:44  1154MN, tb=491327
1.Ng6+
  -+  (-9.14 ++)   Depth: 34/64   00:03:44  1155MN, tb=491521
1.Ng6+
  -+  (-8.99 ++)   Depth: 34/64   00:03:45  1159MN, tb=495771
1.Ng6+
  -+  (-8.78 ++)   Depth: 34/64   00:03:48  1173MN, tb=506774
1.Ng6+
  -+  (-8.50 ++)   Depth: 34/64   00:03:48  1174MN, tb=507618
1.Ng6+
  -+  (-8.13 ++)   Depth: 34/64   00:03:49  1181MN, tb=515899
1.Ng6+
  -+  (-7.64 ++)   Depth: 34/64   00:03:56  1218MN, tb=544082
1.Ng6+
  -+  (-7.02 ++)   Depth: 34/64   00:04:04  1262MN, tb=612306
1.Ng6+
  -+  (-6.22 ++)   Depth: 34/64   00:04:07  1276MN, tb=631238
1.Ng6+
  -+  (-5.20 ++)   Depth: 34/64   00:04:11  1300MN, tb=646413
1.Ng6+
  -+  (-3.91 ++)   Depth: 34/64   00:04:14  1312MN, tb=652868
1.Ng6+
  -+  (-2.28 ++)   Depth: 34/64   00:04:15  1318MN, tb=654937
1.Ng6+
  =  (-0.22 ++)   Depth: 34/64   00:04:16  1324MN, tb=658643
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 34/64   00:04:17  1325MN, tb=661409
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 35/64   00:04:18  1326MN, tb=671549
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 36/64   00:04:19  1330MN, tb=677111
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 37/64   00:04:20  1334MN, tb=682179
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 38/64   00:04:21  1336MN, tb=686527
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 39/64   00:04:21  1337MN, tb=687470
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 40/64   00:04:21  1339MN, tb=689328
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 41/64   00:04:23  1343MN, tb=696386
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 42/64   00:04:24  1348MN, tb=708569
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 43/64   00:04:27  1359MN, tb=728543
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 44/64   00:04:28  1362MN, tb=735241
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 45/64   00:04:35  1388MN, tb=787216
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 46/64   00:04:38  1401MN, tb=824702
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 47/64   00:04:38  1402MN, tb=827701
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 48/64   00:04:41  1419MN, tb=855648
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 49/64   00:04:44  1428MN, tb=878494
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 50/64   00:04:46  1440MN, tb=909862
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 51/64   00:04:54  1476MN, tb=1023405
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 52/64   00:05:06  1531MN, tb=1189504
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 53/64   00:05:12  1563MN, tb=1273468
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 54/64   00:05:22  1616MN, tb=1417618
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 55/64   00:06:14  1899MN, tb=2340362
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 56/64   00:06:14  1900MN, tb=2342040
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 57/64   00:06:32  1996MN, tb=2575449
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 58/64   00:07:02  2172MN, tb=3481345
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 59/64   00:08:02  2510MN, tb=4590606
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 60/64   00:08:11  2561MN, tb=4703952
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 61/64   00:09:01  2848MN, tb=5768293
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 62/64   00:09:46  3110MN, tb=6747493
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 63/64   00:11:00  3535MN, tb=8754907
1.Ng6+ hxg6 2.Rg2 Be8+ 3.Kf8 Ra4 4.b4 Rxb4 5.c4 Rxc4 6.d4 Rxd4 7.Rh2+ Rh4 8.Rxh4+ gxh4 9.fxg6 Bxg6
  =  (0.00)   Depth: 64/64   00:12:05  3902MN, tb=9714017

(Grayson, Newport, South Wales 24.03.2017)
Parent - By user923005 (****) [us] Date 2017-03-24 01:33 Edited 2017-03-24 01:59
Komodo solves this one very quickly:
FEN:
2kb4/p7/r1p3p1/p1P2pBp/R2P3P/2K3P1/5P2/8 w - - 0 1


Komodo-10-64bit:
   2  00:00         9,878  9,878,000  +0.67  Bf4 Bf6
   3  00:00        11,742  11,742,000  +0.64  Bf4 Bf6 Be5
   4  00:00        15,426  7,710,686  +0.44  Bf4 Kd7 Kc4 Bf6
   5-  00:00        18,951  9,472,658  +0.37  Bf4 Kd7
   5  00:00        23,891  7,965,790  +0.37  Bf4 Bc7 Be5 Kd7 Kb3
   6  00:00        28,618  7,156,289  +0.35  Bf4 Bf6 Be5 Bxe5 dxe5 Kd7
   6  00:00        39,011  9,755,188  +0.41  Bxd8 Kxd8 Kc4 Kd7 d5 cxd5+ Kxd5 Kc7
   7-  00:00        41,395  10,351,337  +0.33  Bxd8 Kxd8
   7-  00:00        41,557  8,312,730  +0.34  Bf4 Bf6
   7  00:00        41,981  8,397,543  +0.47  Be3 Bf6 Bf4 Kd7 Kc4 Ke6 d5+ cxd5+
   8  00:00        51,060  7,294,806  +0.46  Be3 Kd7 Kc4 Bf6 Bf4 Bg7 d5 cxd5+ Kxd5
   9-  00:00        60,449  7,556,408  +0.39  Be3 Kd7
   9  00:00        68,403  7,600,755  +0.50  Bf4 Bf6 Kc4 Kd7 d5 cxd5+ Kxd5 Bg7 Bd6 Bb2 Ra2
  10  00:00        83,345  8,334,750  +0.48  Bf4 Bf6 Kc4 Kd7 d5 cxd5+ Kxd5 Rc6 Rxa5 a6 Bd6 Bc3 Ra3
  11-  00:00        95,856  7,987,800  +0.41  Bf4 Bf6
  11-  00:00       126,830  9,058,832  +0.34  Bf4 Kd7
  11  00:00       602,428  16,733,739  +0.45  Be3 Kd7 Kc4 Be7 Bd2 Bd8 Bc1 Bf6 Bh6 Kc7 Bf4+ Kd7
  12  00:00       606,458  14,438,857  +0.45  Be3 Kd7 Kc4 Be7 Bd2 Bd8 Bc1 Bf6 Bh6 Kc7 Bf4+ Kd7 Bd2
  13  00:00       615,117  13,668,568  +0.45  Be3 Kd7 Kc4 Be7 Bd2 Bd8 Bc1 Bf6 Bh6 Kc7 Bd2 Kd7 Bf4
  14  00:00       632,523  13,457,277  +0.45  Be3 Kd7 Kc4 Be7 Bf4 Bf6 Bd2 Kc7 d5 cxd5+ Kxd5 Rc6 Rxa5 a6 Bf4+ Kd7 Be5
  15  00:00       671,885  13,173,621  +0.45  Be3 Kd7 Kc4 Be7 Bf4 Bf6 Bd2 Kc7 d5 cxd5+ Kxd5 Rc6 Bf4+ Kd7 Rxa5 a6 Be5 Bxe5
  16  00:00       693,878  12,848,926  +0.45  Be3 Kd7 Kc4 Be7 Bd2 Bf6 Bf4 Be7 Be3 Bf6 Bc1 Kc7 Bh6 Kc8 Bf4 Kd7
  16  00:00       746,033  13,087,678  +0.46  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Bh6 Bf6 Bd2 Be7 Be3 Bf6 Bf4 Be7 Bd2 Bf6
  17  00:00       775,933  12,719,650  +0.46  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Bh6 Bf6 Bd2 Be7 Bf4 Bf6 Be3 Kc8 Bc1 Kd7 Bf4
  18  00:00     4,690,286  19,300,508  +0.46  Bf4 Kd7 Bc1 Bf6 Kc4 Bd8 Bh6 Bf6 Bd2 Be7 Be3 Bd8 Bf4 Bf6 Bh6 Bd8 Kc3 Be7
  19  00:00     4,747,262  19,141,143  +0.46  Bf4 Kd7 Kc4 Bf6 Be3 Be7 Bd2 Bf6 Bf4 Bd8 Bc1 Be7 Kc3 Bf6 Be3 Ke6 Kc4 Kd7 Bc1
  20  00:00     4,811,474  19,016,608  +0.46  Bf4 Kd7 Kc4 Bf6 Bc1 Kd8 Bd2 Kd7 Bf4 Bd8 Bh6 Be7 Kc3 Bf6 Be3 Ke6 Kc4 Kd7 Bd2 Be7
  21  00:00     4,914,858  18,615,292  +0.46  Bf4 Kd7 Bc1 Be7 Bh6 Bd8 Bd2 Bf6 Be3 Be7 Kc4 Bf6 Bf4 Be7 Bd2 Bd8 Bc1 Bf6 Be3 Bd8 Bh6
  22  00:00     5,005,969  18,403,269  +0.46  Bf4 Kd7 Bc1 Be7 Bh6 Bd8 Bd2 Bf6 Kc4 Be7 Bc1 Bf6 Be3 Bd8 Bh6 Bf6 Bc1 Bd8 Be3 Be7 Bf4 Bf6
  23  00:00     5,160,734  18,234,771  +0.46  Bf4 Kd7 Bc1 Be7 Bh6 Bd8 Bd2 Bf6 Kc4 Be7 Be3 Bf6 Bf4 Be7 Bd2 Bd8 Bh6 Bf6 Bc1 Be7 Bf4 Bf6 Be3
  24  00:00     5,458,637  17,955,038  +0.46  Bf4 Kd7 Bc1 Be7 Kc4 Bd8 Bf4 Be7 Be3 Bd8 Bh6 Bf6 Bd2 Be7 Bf4 Bd8 Bc1 Bf6 Bh6 Kc8 Be3 Kc7 Bd2 Kd7
  25  00:00     8,327,929  17,241,121  +0.46  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Bd2 Bf6 Bf4 Be7 Bh6 Kc7 Kc3 Kd7 Be3 Kc7 Bf4+ Kd7 Kc4 Bf6 Bd2 Be7 Be3 Kc7 Bh6 Kd7
  26  00:00     8,642,421  16,911,794  +0.46  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Bd2 Bf6 Bh6 Bd8 Bf4 Bf6 Be3 Kc7 Bh6 Kd7 Bf4 Be7 Be3 Bf6 Kb3 Kc7 Bf4+ Kd7 Bh6 Kc7 Be3
  27  00:00     9,649,292  16,957,368  +0.46  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Be3 Bf6 Bd2 Kc8 Bc1 Kc7 Bf4+ Kd7 Be3 Bd8 Bd2 Bf6 Bh6 Be7 Kd3 Bd8 Bd2 Ke6 Kc4 Kd7 Bc1 Be7
  28  00:00    10,152,254  16,835,278  +0.46  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Be3 Bf6 Bf4 Kc8 Bh6 Kd7 Bd2 Be7 Bf4 Bf6 Bh6 Be7 Kd3 Bd8 Kc3 Bf6 Be3 Kc8 Kd3 Kd7 Kc4 Be7 Kc3
  29  00:01    17,514,671  16,067,572  +0.44  Bf4 Kd7 Bc1 Bf6 Kc4 Be7 Be3 Bf6 Bd2 Bd8 Bf4 Bc7 Be3 Bd8 Bd2 Bf6 d5 cxd5+ Kxd5 Bd8 Bc3 Bc7 f4 Re6 Be5 Rc6 Bxc7 Kxc7 Rxa5 a6 Ra1 Kd7 Rc1
  30  00:01    24,629,870  14,227,874  +0.44  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Be3 Bf6 Bf4 Kc8 Bd2 Kd7 Bh6 Bd8 Bc1 Bf6 Be3 Kc8 Kc3 Kc7 Bc1 Bd8 Bh6 Kd7 Kc4 Bf6 Bd2 Bd8 Bf4 Bf6 Bc1
  31  00:02    28,954,646  13,986,932  +0.40  Bf4 Kd7 Bc1 Ke6 Kc4 Kd7 Be3 Bf6 Bf4 Kc8 Bd2 Kd7 Bh6 Bd8 Bf4 Bf6 Be3 Bd8 Kc3 Be7 Bc1 Bf6 Bh6 Ke6 Kc4 Kd7 Bd2 Bd8 Kb3 Bf6 Bc1 Ke6
  32-  00:03    52,352,939  14,083,903  +0.33  Bf4 Kd7
  32-  00:04    58,517,552  13,918,679  +0.26  Bf4 Kd7
  32-  00:04    63,118,103  13,957,188  +0.16  Bf4 Kd7
  32  00:05    69,883,658  13,810,188  +0.10  Bf4 Kd7 Be5 Ke6 Kc4 Kd7 Bd6 Ke6 Bf4 Kd7 Be5 Ke6 Bd6 Kd7 Bf4 Kc8 Kd3 Kd7 Bd2 Bf6 Kc4 Bd8 Kb3 Kc8 Kc3 Kc7 Be3 Kd7 Bc1 Be7 Kc4 Bf6
  32  00:06    79,452,459  12,882,715  +0.12  Bxd8 Kxd8 Kd2 Kd7 Ke3 Ke6 Kf4 Kf6 Kf3 Ke7 Ke2 Kf6 Kd3 Ke6 Kc2 Kf6 Kc3 Ke6 Kd3 Kd7 Kc4 Ke7 f3 Kd7 Kd3 Kd8 Kc3 Kd7 Kc4 Ke7 d5 cxd5+ Kb5 Re6 Rxa5
  33  00:06    85,187,583  12,653,386  +0.12  Bxd8 Kxd8 Kd2 Kd7 Ke3 Ke6 Kf4 Kf6 Kf3 Ke7 Ke2 Kf6 f3 Ke7 Kd3 Kd7 Ke3 Ke6 Kd2 Kd7 Kd3 Ke6 Kc3 Kd7 Kd2 Ke7 Kc2 Kd7 Kb3 Ke7 Kc4 Kd7 d5 cxd5+ Kxd5 Kc7
  34  00:06    86,968,928  12,697,303  +0.12  Bxd8 Kxd8 Kd2 Kd7 Ke3 Ke6 Kd3 Kd7 Kd2 Ke7 Ke2 Kf6 Kd3 Ke6 Ke3 Ke7 f3 Ke6 Ke2 Kd7 Kd2 Ke7 Kd3 Kd7 Kc3 Ke6 Kc4 Kd7 Kb3 Ke7 Kc2 Kd7 Kd3 Ke7 Ke2
  35  00:07    95,382,694  12,887,055  +0.12  Bxd8 Kxd8 Kd2 Kd7 Ke3 Ke6 Kd3 Kd7 Kd2 Ke7 f3 Kd7 Kd3 Ke7 Ke2 Kf6 Ke3 Ke6 Kf4 Kf6 g4 fxg4 fxg4 hxg4 Kxg4 Kf7 Kf3 Ke7 Kf4 Kf6 Ke4 Ke6 Ke3 Kf7 Kd3 Kf6 Kc4 Ke7 d5 cxd5+
  36  00:15   209,104,055  13,617,178  +0.12  Bxd8 Kxd8 Kd2 Kc7 Ke3 Kd7 Kf3 Ke6 Ke2 Kf7 Kd2 Ke6 Kc3 Ke7 Kc4 Kd8 Kd3 Kc7 Kc2 Kd7 f3 Ke6 Kc3 Kd7 Kd3 Ke6 Ke3 Kd7 Kf4 Ke6 g4 Kf6 gxh5 gxh5 Ke3 Ke6 Kd3 Kd5
  37+  00:15   213,275,020  13,653,169  +0.19  Bxd8 Kxd8 Kd2
  37+  00:16   235,311,236  13,926,221  +0.26  Bxd8 Kxd8 Kd2
  37+  00:20   313,872,369  15,016,934  +1.06  Bxd8 Kxd8 Kd2
  37+  00:22   342,084,846  15,084,880  +1.55  Bxd8 Kxd8 Kd3
  37+  00:36   515,472,835  14,109,730  +5.00  Bxd8 Kxd8 Kd3
  37  03:20  2,923,522,547  14,562,291  +11.99  Bxd8 Kxd8 Kd3 Kd7 Ke3 Ke6 Kf4 Kd5 Kf3 Ke6 Ke3 Kf7 Kf4 Kf6 f3 Ke6 Kg5 Kf7 Kh6 Kf6 f4 Kf7 Kh7 Kf6 Kg8 Ke6 Kg7 Kd5 Kxg6 Ke4 Kxh5 Kd3 Kg5 Kc2 h5 Kb3 Ra1 Kb2 h6 Kxa1 h7 a4 h8Q Kb1 Qe5 a3 Qe1+ Kc2 Qe2+ Kc3 Qxa6 Kxd4 Qxa7 Kd3 Qxa3+ Kd4 Qa5 Ke4 Qc3
  38+  03:54  3,423,655,500  14,620,649  +12.06  Bxd8 Kxd8 Kd3
Parent - By user923005 (****) [us] Date 2017-03-24 01:56
It takes Houdini a long time to iron out the fail high, but it solves this one eventually:
FEN:
8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - 0 1


Houdini 5 Tactical:
17/44  00:00     3,569,901  24,451,000  +0.57  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ke6 Nf4+ Kd6 Nxh3 Nd3+ Kf3 Nxb4 Kg4 Nd5 Kf5 Ne3+ Kxf6 Ng4+ Kg6 Nxh2 Kxh6 Ng4+ Kg5 Ne3 Nf2 Kd5 Kf6
18/46  00:00     9,373,517  24,283,000  +0.54  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 f5 Nd5 Ne5 Nf4 Ke7 Ke3 Ng4+ Kd4 Nxh2 Nxh3 Kd6 b5 Nf3+
18/46  00:00    14,842,510  23,710,000  +0.33  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Kg2 Ng4 Kf3 Ne5+ Ke4 f5+ Kd4 Kd6 Nf4 Nf3+ Ke3 Ne5 Ne2
19/46  00:00    16,399,238  23,664,000  +0.38  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Kg2 Ng4 Kf3 Ne5+ Ke4 Nc6 Nf4+ Kd6
20/46  00:01    27,542,225  23,520,000  +0.49  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ng4+ Kg1 Ne5 b5 Ke6 Nf4+ Kd6 Nxh3 Kc5 Nf4 Kxb5 Nh5 Kc5 Nxf6 Kd6 Kf2 Ke6 Nh5 Kf5
21/48  00:02    44,258,528  23,367,000  +0.51  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ng4+ Kg1 Ne5 b5 Ke6 Nf4+ Kd6 Nxh3 Kc5 Nf4 Kxb5 Nh5 Kc5 Nxf6 Kd6 Kf2 Ke6 Nh5 Ng4+ Kg2 Kf5
22/51  00:03    81,792,177  23,118,000  +0.33  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ke6 Nf4+ Kd6 Nxh3 Nd3+ Kf3 Nxb4 Kg4 Nd5 Nf2 Ne3+ Kh4 Ke6 Ng4 Nf1 h3 h5 Nf2 f5
23/51-  00:04    92,350,840  23,018,000  +0.24  Rxd4 Nxd4
23/51-  00:05   122,571,477  22,694,000  +0.15  Rxd4 Nxd4
23/55+  00:06   145,452,488  22,557,000  +0.24  Rxd4
23/55  00:06   145,675,821  22,557,000  +0.26  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 b4 f5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Ke5 b5 Kd6 Ke3 Nf1+
23/55  00:06   147,904,145  22,553,000  +0.26  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 b4 f5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Ke5 b5 Kd6 Ke3 Nf1+
24/55-  00:07   155,945,640  22,594,000  +0.18  Rxd4 Nxd4
24/55  00:08   181,924,547  22,669,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Kg2 Ng4 Kf3 Kd5 Kf4 Kc4 Kxf5 Ne3+ Kg6 Nf1 Kxh6 Nxg3
24/55  00:09   205,043,276  22,519,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Kg2 Ng4 Kf3 Kd5 Kf4 Kc4 Kxf5 Ne3+ Kg6 Nf1 Kxh6 Nxg3
24/55  00:09   206,426,221  22,513,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Ne2 Kd5 b5 Kc5 Kg2 Ng4 Kf3 Nf6 Kf4 Nh5+ Kxf5 Nxg3+
24/55  00:09   216,316,132  22,458,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Ne2 Kd5 b5 Kc5 Kg2 Ng4 Kf3 Nf6 Kf4 Nh5+ Kxf5 Nxg3+
25/55  00:09   219,418,825  22,444,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Nh5 Ng4+ Kf3 Ne5+ Ke3 Kc6 Kd4 Nf3+ Kd3 Ne5+ Kc3 Nf7 Kd4 Kb5 Ng7 Nd6
25/55  00:09   219,420,771  22,444,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Nh5 Ng4+ Kf3 Ne5+ Ke3 Kc6 Kd4 Nf3+ Kd3 Ne5+ Kc3 Nf7 Kd4 Kb5 Ng7 Nd6
26/57  00:10   232,774,649  21,961,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Nh5 Ng4+ Kf3 Ne5+ Ke3 Kc6 Kd4 Nf3+ Kd3 Ne5+ Kc3 Nf7 Kd4 Kb5 Ng7 Nd6 Ke5 Ne4
26/57  00:12   263,479,299  21,739,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Nh5 Ng4+ Kf3 Ne5+ Ke3 Kc6 Kd4 Nf3+ Kd3 Ne5+ Kc3 Nf7 Kd4 Kb5 Ng7 Nd6 Ke5 Ne4
27/57  00:13   291,964,545  21,878,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Nh5 Ng4+ Kf3 Ne5+ Ke3 Kc6 Nf4 Kb5 Nd5 Nc6 Kd3 Nxb4+ Nxb4 Kxb4 Kd4
27/57  00:14   313,754,645  21,834,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kh1 Ng5 b4 f5 Kg1 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Nh5 Ng4+ Kf3 Ne5+ Ke3 Kc6 Nf4 Kb5 Nd5 Nc6 Kd3 Nxb4+ Nxb4 Kxb4 Kd4
28/57  00:14   321,090,982  21,816,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kf2 Nxh2 Ke2 Ke7 Nxh3 Kd6 Nf4 Ng4 b4 Kc6 Kf3 Nh2+ Ke4 Nf1 g4 Kb5 Nd5 Kc4 Nxf6 Kxb4 Kf4 Nh2 Ne4 Nxg4 Kxg4 Kc4
28/57  00:18   402,366,150  21,681,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kf2 Nxh2 Ke2 Ke7 Nxh3 Kd6 Nf4 Ng4 b4 Kc6 Kf3 Nh2+ Ke4 Nf1 g4 Kb5 Nd5 Kc4 Nxf6 Kxb4 Kf4 Nh2 Ne4 Nxg4 Kxg4 Kc4
29/58  00:32   690,498,745  21,575,000  +0.06  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ke6 Nf4+ Kd6 Nxh3 Nd3+ Kf3 Nxb4 Kg4 Nd5 Nf2 Ne3+ Kf4 Nd5+ Kf5 Ne3+ Ke4 Nf1 Kf3 Ke6 h4 Kf5 g4+ Ke5 Nd3+ Kd4 Nb4 Ke5 Nc6+ Kd6 Na5 Ke5 Nc4+ Kd5 Nb6+ Kc6 Nc8
29/58  00:37   807,371,380  21,413,000  +0.06  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b4 Ne5 Nd5 Ke6 Nf4+ Kd6 Nxh3 Nd3+ Kf3 Nxb4 Kg4 Nd5 Nf2 Ne3+ Kf4 Nd5+ Kf5 Ne3+ Ke4 Nf1 Kf3 Ke6 h4 Kf5 g4+ Ke5 Nd3+ Kd4 Nb4 Ke5 Nc6+ Kd6 Na5 Ke5 Nc4+ Kd5 Nb6+ Kc6 Nc8
30/61  00:46   978,912,138  21,248,000  +0.08  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Ke5 Kg2 Ng4 Kh3 Ne3 Kh4 Kd4 Kh5 Kc3 Ne6 Nf1 g4 Kxb3 Ng7 Nh2 Nf5 Kc4 Nxh6
30/61  00:46   985,373,373  21,243,000  +0.08  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Ke5 Kg2 Ng4 Kh3 Ne3 Kh4 Kd4 Kh5 Kc3 Ne6 Nf1 g4 Kxb3 Ng7 Nh2 Nf5 Kc4 Nxh6
30/65  00:52  1,123,295,892  21,266,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 b4 f5 b5 Ke6 Nf4+ Kd6 Nxh3 Kc5 Nf4 Kxb5 Nd5 Nc6 Kg2 Kc5 Nf6 Ne7 Kh3 Kd6 Kh4 Ke5 Ne8 f4 gxf4+ Kxf4 Nd6 Ng6+ Kh5 Ne5 h4 Nf3
30/65  00:52  1,123,297,461  21,266,000  +0.15  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 b4 f5 b5 Ke6 Nf4+ Kd6 Nxh3 Kc5 Nf4 Kxb5 Nd5 Nc6 Kg2 Kc5 Nf6 Ne7 Kh3 Kd6 Kh4 Ke5 Ne8 f4 gxf4+ Kxf4 Nd6 Ng6+ Kh5 Ne5 h4 Nf3
31/65-  00:55  1,187,782,340  21,278,000  +0.06  Rxd4 Nxd4
31/65  01:12  1,556,683,366  21,368,000   0.00  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 b4 f5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Ne2 Kd5 b5 Kc5 Nc3 Ng4+ Kf3 Nf6 Ke3 Nh5
31/65-  01:27  1,846,170,285  21,232,000   0.00  Rxd4 Nxd4 Nc5 Nc6 Nxa6 Nxa5 Nxc7 Nc4 b3 Ne5 Nd5 Ng4+ Kg1 Ne5 b4 f5 Nf4 Nf3+ Kf2 Nxh2 Nxh3 Ke6 Nf4+ Kd6 Ne2 Kd5 b5 Kc5 Nc3 Ng4+ Kf3 Nf6 Ke3 Nh5
31/65+  01:30  1,910,573,766  21,197,000  +0.28  Kf1
31/65+  02:37  3,208,211,867  20,424,000  +0.98  Kf1
31/65-  02:38  3,225,048,299  20,419,000  +0.76  Kf1 Ke6
31/65-  05:04  6,086,526,473  19,966,000  +0.76  Kf1 Ke6
31/67  16:07  18,629,130,162  19,262,000  +1.40  Ke1 Ke6 Nb6 f5 Kf1 h5 b4 Bxb6 axb6 cxb6 Rd8 Nc7 Rh8 Nd5 Rxh5 Nxb4 Rh6+ Kd5 Rxb6 Kc4 Rf6 a5 Rxf5 a4 Ra5 Kb3 g4 Nc6 Ra6 Nb4 Ra8 Nd5 g5 a3 g6 a2 g7 Ne7
31/67  16:07  18,629,131,294  19,262,000  +1.40  Ke1 Ke6 Nb6 f5 Kf1 h5 b4 Bxb6 axb6 cxb6 Rd8 Nc7 Rh8 Nd5 Rxh5 Nxb4 Rh6+ Kd5 Rxb6 Kc4 Rf6 a5 Rxf5 a4 Ra5 Kb3 g4 Nc6 Ra6 Nb4 Ra8 Nd5 g5 a3 g6 a2 g7 Ne7
32/67-  21:18  24,126,731,209  18,873,000  +1.34  Ke1 Bxb2
32/67  23:29  26,483,083,909  18,792,000  +1.38  Ke1 Bxb2 Rh5 Kg6 Rxh3 Bc3+ Ke2 Bxa5 Rh4 Bc3 Rc4 Bd4 Rc6 a5 Kd3 a4 Kc4 a3 Nc5 Bg1 Kxb5 Bxh2 Ne4 Kf5 Rc2 Kxe4 Rxh2 Kf3 Rxh6 c6+ Kc4 a2 Rh1 f5 Rg1 Kf2 Ra1 Kxg3
32/67  23:29  26,483,086,013  18,792,000  +1.38  Ke1 Bxb2 Rh5 Kg6 Rxh3 Bc3+ Ke2 Bxa5 Rh4 Bc3 Rc4 Bd4 Rc6 a5 Kd3 a4 Kc4 a3 Nc5 Bg1 Kxb5 Bxh2 Ne4 Kf5 Rc2 Kxe4 Rxh2 Kf3 Rxh6 c6+ Kc4 a2 Rh1 f5 Rg1 Kf2 Ra1 Kxg3
Parent - By user923005 (****) [us] Date 2017-03-24 01:58
Komodo solves this one in about a minute:
FEN:
r1k1n2n/8/pP6/5R2/8/1b1B4/4N3/1K5N w - - 0 1


Komodo-10-64bit:
   2  00:00        11,182  10,763,307  +2.18  Rf8 Kb7 Be4+
   3  00:00        13,473  12,968,524  +2.18  Rf8 Kb7 Be4+ Kxb6
   4  00:00        15,339  7,619,591  +2.18  Rf8 Kb7 Be4+ Kxb6 Bxa8
   5-  00:00        17,344  8,615,568  +2.11  Rf8 Bd5
   5-  00:00        21,178  10,520,093  +2.00  Rf8 Bd5
   5-  00:00        28,042  9,357,002  +2.04  Rh5 Nf7
   5-  00:00        33,959  11,331,375  +1.71  Rh5 Nf7
   5  00:00        39,374  13,138,242  +1.80  Rf8 Bd5 Rxe8+ Kb7 Rxa8 Kxa8
   6+  00:00        43,802  10,960,090  +1.94  Rf8 Kd7 Rxh8
   6+  00:00        45,747  11,446,765  +2.07  Rf8 Kd7
   6  00:00        52,904  13,237,582  +2.14  Rf8 Kd7 Bf5+ Be6 Bxe6+ Kxe6 Rxh8 Rb8
   7-  00:00        60,543  12,091,913  +2.07  Rf8 Kd7
   7-  00:00        68,295  11,388,004  +1.98  Rf8 Bd5
   7-  00:00        69,794  11,637,958  +2.00  Rh5 Nd6
   7-  00:00        86,162  12,314,134  +1.73  Rh5 Nd6
   7-  00:00        89,215  12,750,464  +1.74  Rf8 Bd5
   7-  00:00        92,655  13,242,103  +1.45  Rf8 Bd5
   7  00:00        96,923  13,852,079  +1.45  Rf8 Bd5 Rxe8+ Kb7 Rxa8 Kxa8 Nf2 Kb7
   8+  00:00       100,681  12,524,849  +1.52  Rf8 Bd5 Rxe8+
   8+  00:00       101,418  12,616,532  +1.64  Rf8 Bd5 Rxe8+
   8  00:00       102,726  12,779,249  +1.64  Rf8 Bd5 Rxe8+ Kb7 Rxa8 Kxa8 Nf2 Kb7 Nf4 Bf3
   9-  00:00       110,970  5,841,233  +1.57  Rf8 Bd5
   9+  00:00       121,730  5,797,301  +1.71  b7+ Kxb7 Be4+
   9+  00:00       127,511  5,796,771  +1.89  b7+ Kxb7 Be4+
   9-  00:00       131,920  5,736,300  +1.78  b7+ Kxb7
   9-  00:00       134,611  5,609,375  +1.56  b7+ Kxb7
   9  00:00       820,024  7,522,997  +1.56  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Be4 Nd6 Re5 Ng6 Bxg6 Bxg6+ Kc1 Kb6
  10-  00:00       834,760  7,073,913  +1.49  b7+ Kxb7
  10-  00:00       892,939  5,615,728  +1.42  b7+ Kxb7
  10  00:00       894,122  5,623,168  +1.53  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Rh6 Bxh1 Rxh1 Kxb6 Rh6+ Kc5 Kc2
  11-  00:00       913,007  4,856,244  +1.46  Rf8 Bd5
  11  00:00       927,805  4,198,011  +1.41  Rf8 Bd5 Rxh8 Kb7 Nf4 Bxh1 Rxh1 Kxb6 Rh6+ Kc5 Kc2 Nd6 Kd2
  12-  00:00     1,171,941  1,483,399  +1.34  Rf8 Bd5
  12-  00:00     1,277,518  1,540,959  +1.27  Rf8 Bd5
  12  00:00     1,281,764  1,546,081  +1.26  Rf8 Bd5 Rxh8 Kb7 Nf4 Bc6 Ng3 Kxb6 Rh6 Rb8 Kc2 Kc7 Be4 Nd6
  13  00:01     1,416,039  1,434,615  +1.26  Rf8 Bd5 Rxh8 Kb7 Nf4 Bc6 Ng3 Kxb6 Rh6 Rb8 Kc2 Kc7 Be4 Nd6 Bxc6
  14  00:01     1,473,916  1,314,753  +1.26  Rf8 Bd5 Rxh8 Kb7 Nf4 Bc6 Ng3 Kxb6 Rh6 Rb8 Kc2 Kc7 Be4 Nd6 Bxc6
  15-  00:01     1,846,063  968,500  +1.19  Rf8 Bd5
  15  00:02     2,874,208  1,161,922  +1.22  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Rh3 Bc6 Ng3 Nd6 Rh6 Rd8 Kc2 Kxb6 Nf5 Nb5 Ne7
  16-  00:08     9,154,824  1,085,897  +1.15  Rf8 Bd5
  16+  00:08     9,164,045  1,086,861  +1.22  Rf8 Bd5 Rxh8
  16  00:08     9,171,060  1,087,693  +1.22  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Ng3 Kxb6 Ne4 Nc7 Rh6+ Ka5 Kc2 Nb5 Nd2 Rf8 Nxf3 Rxf4 Ne5
  17  00:08     9,368,775  1,059,446  +1.22  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Ng3 Kxb6 Ne4 Nc7 Rh6+ Ka5 Kc2 Nb5 Nd2 Rf8 Nxf3 Rxf4 Ne5
  18  00:10     9,889,538  986,829  +1.22  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Ng3 Kxb6 Ne4 Nc7 Rh6+ Ka5 Kc2 Nb5 Nd2 Rf8 Nxf3 Rxf4 Ne5
  19  00:16    12,712,360  794,824  +1.24  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Ng3 Kxb6 Ne4 Nc7 Rh6+ Ka5 Nd2 Rf8 Ng6 Rd8 Kc2 Bc6 Ne5 Bd5 Nc6+ Bxc6 Rxc6 Nb5
  20  00:27    17,196,941  633,575  +1.24  Rf8 Bd5 Rxh8 Kb7 Nf4 Bc6 Ng3 Kxb6 Rh6 Rb8 Kc2 Kc5 Ne6+ Kb4 Nf5 a5 Ne3 Bd7 Rh4+ Ka3 Nc4+ Ka2 Nc5 Nf6 Nxd7 Nxd7
  21  00:40    24,489,878  610,275  +1.19  Rf8 Bd5 Rxh8 Kb7 Nf4 Bc6 Ng3 Kxb6 Rh6 Rb8 Kc2 Kc5 Ne6+ Kb4 Nd4 Bd5 Nc6+ Bxc6 Rxc6 a5 Rc4+ Ka3 Rc3+ Ka4 Ne4 Rb6 Nc5+ Kb4 Nd7
  22  00:43    26,432,512  612,583  +1.20  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Rh3 Bc6 Ng3 Rb8 Kc2 Kxb6 Rh6 Kc5 Ne6+ Kb4 Nd4 Ba4+ Kd2 Nc7 Rc6 Nd5 Rc1 Re8 Ne4 Rh8
  23  00:58    36,778,675  628,181  +1.23  Rf8 Bd5 Rxh8 Kb7 Nf4 Bf3 Rh3 Bc6 Ng3 Rb8 Kc2 Kxb6 Rh6 Kc5 Ne4+ Bxe4 Bxe4 Nd6 Rh5+ Kd4 Bc6 Rc8 Ne6+ Ke3 Re5+ Kf2 Rc5 Ke3 Rc3+ Ke2 Kb3 Ke1
  23+  01:00    38,178,045  627,217  +1.27  b7+ Kxb7 Be4+
  23+  01:23    59,465,984  712,111  +2.14  b7+ Kxb7 Be4+
  23  01:24    63,285,643  745,434  +2.20  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb7 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Ne5 Rxg8 Kd6 Nf4 Nc4 Rg5 Nc5 Kc2 Ne6 Ne4+ Ke7 Nxe6
  24  01:28    71,188,311  806,376  +2.20  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb7 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Ne5 Rxg8 Kd6 Nf4 Nc4 Rg5 Nc5 Kc2 Ne6 Ne4+ Ke7 Nxe6 Kxe6
  25  01:42    97,984,268  959,310  +2.26  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb8 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Ne5 Rxg8 Nd6 Kc2 Ndc4 Rd8 Nb6 Kc3 a5 Ne4 Ned7 Nd4+
  26  01:52   124,171,327  1,106,088  +2.29  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb7 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Bh7+ Nxh7 Nbd6 Nf6 Ne5 Ra8 Kb7 Rg8 Kb6 Kc2 Kc6 Kb3 Nd3 Rb8 Nb5
  27+  02:07   174,786,864  1,372,684  +2.36  b7+ Kxb7 Be4+
  27  02:19   215,800,890  1,548,044  +2.40  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb7 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Nbd6 Rxg8 Ne5 Kb2 Kb6 Kb3 Nb5 Rb8+ Ka7 Rd8 Kb7 Rd5 Nf3 Rc5
  28  02:22   229,906,100  1,613,643  +2.34  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb7 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Nbd6 Rxg8 Ne5 Kb2 Kb6 Kb3 Kc6 Nd4+ Kb6 Kb4 Nd3+ Kc3 Nf2 Nd7+ Kb7 Ne5 Nfe4+ Kb4
  29  02:33   259,921,745  1,694,054  +2.37  b7+ Kxb7 Be4+ Ka7 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb7 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Bh7+ Nxh7 Nbd6 Nf6 Ne5 Kc2 Nec4 Kc3 Ne3 Rb1 Nec4 Kb4 Kb6 Rc1 a5+ Ka4
  30+  03:09   464,765,288  2,458,960  +2.44  b7+ Kxb7 Be4+
  30  03:18   520,314,583  2,619,507  +2.43  b7+ Kxb7 Be4+ Kb8 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb8 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Ng5 Nxg5 Bc4 Rc8+ Kb5 Nge4 Be6 Re8 Bh3 Kb2 Bg2 Rc8 Bf3 Kc3 a5 Kd4 Bg2 Rc2 Bf3 Rb2+
  31+  03:51   772,743,290  3,342,161  +2.50  b7+ Kxb7 Be4+
  31+  04:14   979,789,046  3,846,095  +2.57  b7+ Kxb7 Be4+
  31-  04:22  1,058,263,297  4,030,197  +2.50  b7+ Kxb7
  31+  04:28  1,116,474,053  4,162,161  +2.58  b7+ Kxb7 Be4+
  31-  04:28  1,120,855,523  4,172,025  +2.46  b7+ Kxb7
  31+  04:57  1,388,323,017  4,671,947  +2.63  b7+ Kxb7 Be4+
  31  06:09  2,148,350,483  5,818,497  +2.80  b7+ Kxb7 Be4+ Kb8 Bxa8 Bf7 Nf4 Kxa8 Nf2 Kb8 N2d3 Kc7 Ne5 Nd6 Rf6 Bg8 Rf8 Nhf7 Ne6+ Kb6 Rb8+ Nb7 Nd7+ Kc6 Nf6 Ne5 Rxg8 Nd6 Kc2 Nec4 Kb3 Ne3 Kb4 Kb6 Rb8+ Ka7 Rd8 Nb7 Rd3 Nc2+ Kb3 Ne1 Rc3 Nd6 Rc7+ Kb6 Nd5+ Ka5 Rc5+ Nb5
  32+  07:04  2,805,829,036  6,602,696  +2.87  b7+ Kxb7 Be4+
Parent - By user923005 (****) [us] Date 2017-03-24 02:24
Seems like one minute is the magic depth for these engines to see some solutions

FEN:
8/8/4p1Pk/1rp1K1p1/4P1P1/1nP2Q2/p2b1P2/8 w - - 0 1


Houdini 5 Tactical:
16/44  00:00     3,709,913  19,025,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
17/44  00:00     4,044,280  19,076,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
18/46  00:00     6,790,984  18,863,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
18/46  00:00     7,077,176  18,822,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
19/46  00:00    13,400,930  18,357,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
20/47  00:01    32,442,014  18,215,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
21/47  00:02    41,762,533  18,292,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
22/47  00:02    46,056,312  18,298,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
23/47  00:02    49,444,834  18,340,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
24/52  00:05    94,049,170  18,290,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
24/52  00:05    94,050,541  18,290,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
24/52  00:05    95,733,052  18,308,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
25/52  00:05    95,734,459  18,308,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
25/52  00:05    97,144,686  18,305,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
26/52  00:05   101,592,108  18,311,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
26/52  00:06   114,319,044  18,241,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
27/52  00:08   144,497,626  18,242,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
27/64  00:18   338,738,626  18,072,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
28/64  00:18   338,740,318  18,072,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
28/64  00:26   481,710,641  18,042,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
29/64  00:26   481,712,859  18,042,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
29/64  00:28   509,525,418  18,026,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
30/64  00:28   509,526,949  18,026,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
30/64  00:32   585,941,336  18,033,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
30/64-  00:48   868,044,620  18,004,000   0.00  Qf8+ Kxg6 Qg8+ Kh6 Qh8+ Kg6 Qg8+
30/64+  00:52   939,847,281  18,009,000  +0.17  Kf6
30/67+  01:53  2,042,484,934  17,985,000  +5.32  Kf6
30/77  01:59  2,143,515,987  17,990,000  +5.57  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 c3 Qa7 Nc4 Qd7+ Kc2 Kxe6 Nd2 Qg7 Nb1 Qxg5 Kb2 Qb5+ Ka2 Qc4+ Kb2 Qb4+ Ka2 Qe4 Kb2 Qb7+ Ka2 Qc6 Kb2 Qb6+ Ka2 Qa7+ Kb2 Qb8+ Kc1 g5
30/77  01:59  2,143,719,395  17,989,000  +5.57  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 c3 Qa7 Nc4 Qd7+ Kc2 Kxe6 Nd2 Qg7 Nb1 Qxg5 Kb2 Qb5+ Ka2 Qc4+ Kb2 Qb4+ Ka2 Qe4 Kb2 Qb7+ Ka2 Qc6 Kb2 Qb6+ Ka2 Qa7+ Kb2 Qb8+ Kc1 g5
31/77+  02:14  2,417,515,868  18,002,000  +5.64  Kf6
31/77-  02:14  2,422,274,000  18,003,000  +5.57  Kf6 Bxc3+
31/77+  02:16  2,457,164,202  18,005,000  +5.64  Kf6
31/77+  02:19  2,509,477,258  18,006,000  +5.79  Kf6
31/77  02:21  2,539,078,138  18,008,000  +5.78  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 c3 Qa7 Nc4 Qd7+ Kc2 Kxe6 Nd2 Qg7 Nb1 Qxg5 Kb2 Qb5+ Ka2 Qc5 Kb2 Qb6+ Ka2 Qc7 Kb2
31/77  02:21  2,539,080,325  18,008,000  +5.78  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 c3 Qa7 Nc4 Qd7+ Kc2 Kxe6 Nd2 Qg7 Nb1 Qxg5 Kb2 Qb5+ Ka2 Qc5 Kb2 Qb6+ Ka2 Qc7 Kb2
32/77+  02:33  2,759,953,393  18,010,000  +5.85  Kf6
32/77-  02:34  2,775,240,907  18,006,000  +5.78  Kf6 Bxc3+
32/77+  02:38  2,846,187,603  18,011,000  +5.85  Kf6
32/78+  02:57  3,197,275,450  18,009,000  +6.84  Kf6
32/78-  02:57  3,198,139,626  18,009,000  +6.53  Kf6 Bxc3+
32/78+  03:02  3,276,428,627  18,014,000  +6.93  Kf6
32/78+  03:08  3,395,373,817  18,029,000  +7.71  Kf6
32/78  03:14  3,501,880,232  18,040,000  +7.82  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 Ke2 Qa7 e5 Qe3+ Kd1 Qxe5 Kc2 Qxg5 c3 Qe5 Nb1 g5 Kb3 Qb5+ Ka2 g6 c2 g7 c1Q g8Q Na3 Ke7+ Ka1 Qe5+ Qb2 Qe1+ Qb1 Qg7+ Ka2 Qd2+
32/78  03:14  3,505,588,355  18,040,000  +7.82  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 Ke2 Qa7 e5 Qe3+ Kd1 Qxe5 Kc2 Qxg5 c3 Qe5 Nb1 g5 Kb3 Qb5+ Ka2 g6 c2 g7 c1Q g8Q Na3 Ke7+ Ka1 Qe5+ Qb2 Qe1+ Qb1 Qg7+ Ka2 Qd2+
33/78+  03:30  3,808,452,069  18,083,000  +7.89  Kf6
33/78+  03:36  3,907,476,125  18,076,000  +7.96  Kf6
33/78-  03:37  3,933,345,705  18,074,000  +7.89  Kf6 Bxc3+
33/78+  03:40  3,975,638,793  18,067,000  +7.97  Kf6
33/78  03:42  4,017,568,059  18,075,000  +7.98  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 Ke2 Qa7 e5 Qe3+ Kd1 Qxe5 Nf3 Qe4 Nd2 Qe3 Nb1 Qd4+ Nd2 Ke6 Kc2 Qe3 Kc1 Qc3+ Kd1 Kf5 Ke2 Qc2 Ke1 Kxg5 Ke2
33/78  03:42  4,018,501,195  18,075,000  +7.98  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Ke4 Qxa1 Kd3 Kf7 Ke2 Qa7 e5 Qe3+ Kd1 Qxe5 Nf3 Qe4 Nd2 Qe3 Nb1 Qd4+ Nd2 Ke6 Kc2 Qe3 Kc1 Qc3+ Kd1 Kf5 Ke2 Qc2 Ke1 Kxg5 Ke2
34/78+  03:52  4,208,196,131  18,083,000  +8.05  Kf6
34/78+  03:56  4,277,752,837  18,085,000  +8.12  Kf6
34/78+  04:12  4,568,684,336  18,080,000  +8.86  Kf6
34/78-  04:13  4,574,379,819  18,080,000  +8.64  Kf6 Bxc3+
34/78+  04:28  4,854,677,107  18,058,000  +8.93  Kf6
34/78+  04:37  5,006,200,494  18,056,000  +9.53  Kf6
34/78-  04:38  5,018,607,758  18,055,000  +9.04  Kf6 Bxc3+
34/78  04:42  5,098,791,737  18,057,000  +9.39  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Kd5 Qxa1 Ne4 Qa5+ Kd4 f3 Nc5 Qd8+ Kc3 Qxg5 Kd4 Qf4+ Kd5 Kf7 e5 Qd2+ Nd3 Qe3 Nc5 g5 e4 g6 exf3 Qxf3+ Kd4 g7 Nd3 Qf6+ Ke4 g8Q Nf4 Qc8
34/78  04:42  5,100,584,138  18,057,000  +9.39  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Kd5 Qxa1 Ne4 Qa5+ Kd4 f3 Nc5 Qd8+ Kc3 Qxg5 Kd4 Qf4+ Kd5 Kf7 e5 Qd2+ Nd3 Qe3 Nc5 g5 e4 g6 exf3 Qxf3+ Kd4 g7 Nd3 Qf6+ Ke4 g8Q Nf4 Qc8
35/78+  05:02  5,473,406,360  18,072,000  +9.46  Kf6
35/78+  05:06  5,531,836,569  18,072,000  +9.53  Kf6
35/78+  05:25  5,888,784,628  18,080,000  +10.26  Kf6
35/78-  05:26  5,905,843,893  18,078,000  +10.04  Kf6 Bxc3+
35/78+  05:53  6,384,301,187  18,087,000  +10.33  Kf6
35/78+  06:07  6,649,745,666  18,096,000  +10.94  Kf6
35/79-  06:07  6,656,302,529  18,098,000  +10.44  Kf6 Bxc3+
35/79+  06:17  6,842,475,364  18,108,000  +11.08  Kf6
35/79-  06:19  6,866,330,417  18,110,000  +10.27  Kf6 Bxc3+
35/79+  06:26  7,010,233,716  18,120,000  +11.30  Kf6
35/79-  06:34  7,150,098,313  18,129,000  +9.99  Kf6 Bxc3+
35/79+  06:42  7,301,312,010  18,134,000  +11.64  Kf6
35/85  07:02  7,660,404,116  18,149,000  +11.97  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Kd5 Qxa1 Nb3 Qf6 e5 Qxg5 c3 Qe3 Kc4 Qe2+ Kb4 g5 Nc5 Qxe5 Na4 Qf4+ Kb3 Kf7 c2 g6 Nc3 g7 Nd5 Qf3+ Nc3 g8Q c1R Qc8
35/85  07:02  7,664,092,297  18,149,000  +11.97  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Kd5 Qxa1 Nb3 Qf6 e5 Qxg5 c3 Qe3 Kc4 Qe2+ Kb4 g5 Nc5 Qxe5 Na4 Qf4+ Kb3 Kf7 c2 g6 Nc3 g7 Nd5 Qf3+ Nc3 g8Q c1R Qc8
36/85+  07:19  7,978,702,403  18,142,000  +12.04  Kf6
36/85+  07:28  8,129,765,246  18,141,000  +12.11  Kf6
36/85+  07:58  8,690,209,395  18,158,000  +13.21  Kf6
36/85-  08:01  8,744,772,846  18,162,000  +12.88  Kf6 Bxc3+
36/85-  08:13  8,964,562,310  18,166,000  +12.30  Kf6 Bxc3+
36/85+  08:17  9,035,725,265  18,166,000  +12.80  Kf6
36/85-  08:18  9,044,851,441  18,166,000  +12.16  Kf6 Bxc3+
36/85-  08:18  9,057,374,449  18,166,000  +10.90  Kf6 Bxc3+
36/85+  08:22  9,120,558,814  18,166,000  +11.94  Kf6
36/85-  08:22  9,125,547,668  18,165,000  +10.63  Kf6 Bxc3+
36/85+  08:25  9,171,217,506  18,164,000  +12.29  Kf6
36/85  08:39  9,431,573,169  18,169,000  +12.91  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Kd5 Qxa1 Ne4 Qa5+ Kd4 f3 Nc5 Qd8+ Kc3 Qxg5 Kb4 Qd2+ Kb5 Qe3 Nd3 Qxe6 Kb4 g5 Nb2 Qb6+ Ka3 Qe3+ Kb4 g6 c3 g7 Nc4 Qe4 Kc5 Kh7 Nb6 g8Q Kb5
36/85  08:39  9,431,576,057  18,169,000  +12.91  Kf6 Bxc3+ e5 Bxe5+ Kf7 Rb7+ Qxb7 a1Q g7 Bxg7 Kg8 Nd2 Qb8 Qh1 Qa7 Qa1 Qb7 c4 Qb8 Kg6 Qe8+ Kf6 Qf7+ Ke5 Qxg7+ Kd5 Qxa1 Ne4 Qa5+ Kd4 f3 Nc5 Qd8+ Kc3 Qxg5 Kb4 Qd2+ Kb5 Qe3 Nd3 Qxe6 Kb4 g5 Nb2 Qb6+ Ka3 Qe3+ Kb4 g6 c3 g7 Nc4 Qe4 Kc5 Kh7 Nb6 g8Q Kb5
36/85+  08:52  9,680,681,048  18,169,000  +12.98  Kf6
36/85+  09:04  9,893,767,001  18,170,000  +13.51  Kf6
36/85-  09:05  9,913,745,396  18,169,000  +13.13  Kf6 Bxc3+
Parent - By user923005 (****) [us] Date 2017-03-28 01:12
attachment has fairly long time control analysis by a number of strong engines, including Komodo with multi-pv 3 turned on.
Attachment: eig-redo.epd - Fairly long time analysis by a number of strong problem solving engines (including Komodo with mpv) (24k)
Parent - By Master Om (Bronze) Date 2017-04-14 18:16 Edited 2017-04-14 18:36
The second one is pretty awesome. Stockfish and other had hard time except....
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Analysis "Fritz 15"]
[AnalysisTime "161"]
[FEN "4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - 0 1"]
[SetUp "1"]

1. Bg7 Kf7 2. Qh7 Ne5 3. f4 Qxe4 4. Bxf6+ Ke6 5. Bxe5 Bxe2 6. f5+ Kd7 7. Rxd6+
Kc8 8. Qxg6 Bb5 9. Re6 Rd8 10. Bd4 Qd3 11. Rhe2 Rd6 12. Qg8+ Rd8 13. Qg5 Qd1+
14. Re1 Qf3 15. R6e3 Qd5 16. Qf4 {(0:02:41) 395127kN}{[%eval 89,21,Fritz
15][%meval 161s]} *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[Analysis "Roc 2017Feb 2"]
[AnalysisTime "0"]
[FEN "4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - 0 1"]
[SetUp "1"]

1. Bg7 Kf7 2. Qh7 Ne5 3. f4 Qxe4 4. Bxf6+ Ke6 5. Bxe5 Bxe2 6. f5+ Kd7 7. Rxd6+
Kc8 8. Qxg6 Bb5 9. Qe6+ Bd7 10. Rxd7 Rxd7 11. Rb2 b5 12. a4 b4 13. cxb4 Qxg4+
14. Kh2 Qh4+ 15. Kg2 Qe4+ 16. Kg3 Qe1+ 17. Kf3 Qh1+ 18. Kg4 Qe4+ 19. Kg5 axb4
20. Qa6+ Kd8 21. Qb6+ {(0:00:00) 485062kN}{[%eval 106,20,Roc 2017Feb 2]} *
Parent - By Vinvin (***) [be] Date 2017-04-22 18:43 Edited 2017-04-22 18:46
Results for Stockfish_170417_x64_modern_matefinder from here http://chess.ultimaiq.net/stockfish.html

Conditions : 30 minutes/position, i7 6*4GHz, 8 GB hash, 6 pieces Syzygy, Arena 3.5.1
6 runs :
8 positions fount at least 1 time.

    Solution           1st run               2nd run              3rd run              4th run             5th run                 6th run     
1)  Kf2-e1            Rd5xd4               Kf2-e1  * 879 Sec    Rd5xd4               Kf2-e1  * 531 Sec    Rd5xd4               Kf2-e1  * 677 Sec
2)  Ke5-f6            Qf3-f8               Qf3-f8               Qf3-f8               Qf3-f8               Qf3-f8               Qf3-f8          
3)  Rd1-d4            Nf3-d4               Nf3-d4               Nf3-d4               Nf3-d4               Nf3-d4               Nf3-d4          
4)  Nf3-g5            Nf3-d2               Nf3-d2               Nf3-d2               Nf3-d2               Nf3-d2               Nf3-d2          
5)  b6-b7             b6-b7   * 784 Sec    Rf5-f8               b6-b7   * 1033 Se    b6-b7   * 295 Sec    b6-b7   * 420 Sec    b6-b7   * 727 Sec
6)  Nf8-g6            Nf8-g6  * 237 Sec    Nf8-g6  * 62 Sec     Nf8-g6  * 65 Sec     Nf8-g6  * 235 Sec    Nf8-g6  * 118 Sec    Nf8-g6  * 127 Sec
7)  g2-g4             c2-c4                f2-f3                c2-c4                c2-c4                f2-f3                f2-f3           
8)  .. Nd5-f4         Rc8-e8               Rc8-e8               Rc8-e8               Rc8-e8               Rc8-e8               Nd5-f4  * 14 Sec
9)  h2-h4             e7xf8R               e7xf8B               e7xf8B               e7xf8R               e7xf8Q               e7xf8R          
10) Rd1-g1            Rf3-h3               Rf3-h3               Rf3-h3               Rf3-h3               Rf3-h3               Rf3-h3          
11) .. Rf8xf4         e7-e6                e7-e6                e7-e6                e7-e6                e7-e6                e7-e6           
12) Ne7-g6            Ne7-g6  * 474 Sec    Ne7-g6  * 269 Sec    Ne7-g6  * 339 Sec    Qg2-e4               Ne7-g6  * 1348 Se    Ne7-g6  * 604 Sec
13) Qc7-d8            d3-d4                Rb6-f6               Rb6-f6               d3-d4                d3-d4                d3-d4           
14) .. h5-h4          Rg4xg3               h5-h4   * 1 Sec      Rg4xg3               h5-h4   * 3 Sec      Rg4xg3               h5-h4   * 247 Sec
15) Rd1-d5            Be2-d3               Be2-d3               Be2-d3               Be2-d3               Be2-d3               Be2-d3          
16) Bg5xd8            Bg5-d2               Bg5-f4               Bg5-d2               Bg5-d2               Bg5-f4               Bg5-d2          
17) .. Qh5-f5         g4xh3                g4xh3                g4xh3                g4xh3                g4xh3                g4xh3           
18) Bh6-g7            Bh6-g7  * 1299 Se    Bh6-g7  * 672 Sec    Bh6-g7  * 480 Sec    Bh6-g7  * 655 Sec    Bh6-g7  * 504 Sec    Bh6-g7  * 273 Sec
19) Rf6xe6            Bc4xe6               Bc4xe6               Bc4xe6               Bc4xe6               Bc4xe6               Bc4xe6          
20) h2-h4             Ba4-b3               h2-h4   * 45 Sec     Ba4-b3               Ba4-b3               Ba4-b3               Ba4-b3          
21) Rd1xd6            Bc1-e3               Bc1-e3               Bc1-e3               Bc1-e3               Bc1-e3               Bc1-e3          
22) f5-f6             Bg3-h4               Bg3-h4               Bg3-h4               Bg3-h4               Bg3-h4               Bg3-h4          
23) .. Rb8xb3         Ra6-a7               Ke7-e6               Ke7-e6               Ra6-b6               Ra6-a7               Ke7-e6          
24) .. Rf8xf3         Bd7-c8               Bd7-c8               Bd7-c8               Bd7-c8               Bd7-c8               Bd7-c8          
25) Re1-d1            Bh3-g2               Bh3-g2               Bh3-g2               Bh3-g2               Bh3-g2               Bh3-g2          
Set :

8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1;
8/8/4p1Pk/1rp1K1p1/4P1P1/1nP2Q2/p2b1P2/8 w - - bm Kf6;
r1b2rk1/pp3pb1/3q2pp/2nP4/6P1/2P2N2/P1Q1BPP1/2BR1RK1 w - - bm Rd4;
r1br2k1/7p/p2q1ppB/1p1P4/2P5/5N2/PQ3PPP/4R1K1 w - - bm Ng5;
r1k1n2n/8/pP6/5R2/8/1b1B4/4N3/1K5N w - - bm b7;
r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6+;
r1q2k2/pppb3r/2n1pBp1/3pPp1p/3P1Q1P/P2B4/2P2PP1/R3K2R w KQ - bm g4;
r1r3k1/1bq2pp1/p4n1p/1p1npB2/PP6/2P2N2/1BQ2PPP/R3R1K1 b - - bm Nf4;
r3kb1r/4Pp2/pn3P2/1pp3B1/2p5/2N3P1/PP3P1P/3RKB1b w kq - bm h4;
r3rnk1/1bq1bpp1/pp2p3/3pP2Q/P4p2/1NNB1R2/1PP4P/2KR4 w - - bm Rg1;
r4rk1/ppnqp2p/3p2p1/2pP4/P1P2B1P/6P1/1P3PK1/R2Q1R2 b - - bm Rxf4;
5B2/1p1nNp2/8/1P2R3/3p3q/8/p1K1P1Q1/k3b3 w - - bm Ng6;
4K2k/1pQp3p/1R4p1/1P4P1/8/3P3P/1q3r2/8 w - - bm Qd8;
2k5/1bp2B2/1b5r/1N1Pp2p/6r1/6B1/1P2RP2/R5K1 b - - bm h4;
1k5r/pb3p1p/1q2rp1b/2p5/1pQ1P3/1P3N2/P3BPPP/3R1RK1 w - - bm Rd5;
2kb4/p7/r1p3p1/p1P2pBp/R2P3P/2K3P1/5P2/8 w - - bm Bxd8;
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5;
4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - bm Bg7;
4r1k1/pp5p/2p1bR2/2P5/2B1n3/2B2K2/PP5P/8 w - - bm Rxe6;
2r1k1r1/3q4/p1nBpp1p/8/B5p1/4RbK1/PP1Q1P1P/2R5 w - - bm h4;
2r1rbk1/p1qn2p1/3n1pp1/P1p1p3/1p2P1P1/1N3Q1P/1PP2P2/R1BR1BK1 w - - bm Rxd6;
3r2k1/p1R2ppp/1p6/P1b1PP2/3p4/3R2B1/5PKP/1r6 w - - bm f6;
1r6/4k3/r2p2p1/2pR1p1p/2P1pP1P/pPK1P1P1/P7/1B6 b - - bm Rxb3+;
5rk1/ppqb2pp/2n1p3/3pP3/2pP4/P1P1BN1Q/2P2PP1/R3K3 b Q - bm Rxf3;
3rrnk1/p1n1qpp1/1p5p/2pRP3/2P4P/1P2Q1PB/PB5K/4R3 w - - bm Red1;
Up Topic The Rybka Lounge / Test Positions / Cranky Walters

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