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.
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)
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
Perhaps this is more up the street of the older engines when pruning is less intensive?
1: , eigrock
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)
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)
Houdini also solved that one (see above attachments).
Houdini's data record:
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.
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.
> 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)
Komodo solves this one very quickly:
FEN:
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
It takes Houdini a long time to iron out the fail high, but it solves this one eventually:
FEN:
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
Komodo solves this one in about a minute:
FEN:
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+
Seems like one minute is the magic depth for these engines to see some solutions
FEN:
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+
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)
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]} *
[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]} *
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.
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;
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