![[sk]](/mwf/v12/flags/sk.png "Slovakia")
r5k1/1b2bppp/1n2p3/1P6/2qPP3/r1p2N2/1R2QPPP/1BR1B1K1 b - - 0 26
30 Minutes or Less
![[de]](/mwf/v12/flags/de.png "Germany")
Maybe to hard for engines!? Not really.
29...cxb2!! 27.Rxc4
Now engines see 27...Nxc4 with advantage for black.
28.Qxc4 Ra1! and black will win. (29.Qc2 Ba3 -+)
Thanks for this position.
Not really.29...cxb2!! 27.Rxc4
Now engines see 27...Nxc4 with advantage for black.
28.Qxc4 Ra1! and black will win. (29.Qc2 Ba3 -+)
Thanks for this position.
![[us]](/mwf/v12/flags/us.png "United States")
I minute for Critter.
I probably would never have seen it if I was playing OTB, but since you gave us the "big sac" hint, I was able to find it by myself also.
Analysis of Q:\2pos.epd
6/24/2011 5:34:53 PM Level: Blitz 1/1
Analyzing engine: Critter_1.01_64bit_SSE42
1
Avoid move:
Best move (Critter_1.01_64bit_SSE42): c3xb2
Not found in: 10:00
2/4 00:00 519 86,500 -0.23 Qc4xe2 Rb2xe2 Be7-b4 Nf3-e5 Ra3-a1
2/4 00:00 708 101,142 +0.17 Qc4-c7 Rb2-a2
3/4 00:00 1,838 229,750 -0.19 Qc4-c7 Rb2-c2 Nb6-a4 Nf3-e5 Ra3-b3
4/5 00:00 2,282 285,250 -0.19 Qc4-c7 Rb2-c2 Nb6-a4 Nf3-e5 Ra3-b3
5/6 00:00 3,905 433,888 -0.32 Qc4-c7 Rb2-c2 Nb6-a4 Qe2-d3 Be7-b4 Nf3-e5 Na4-b2
6/7 00:00 4,680 390,000 -0.32 Qc4-c7 Rb2-c2 Nb6-a4 Qe2-d3 Be7-b4 Nf3-e5 Na4-b2
7/8 00:00 6,568 156,380 -0.50 Qc4-c7 Rb2-c2 Nb6-a4 Qe2-d3 Be7-b4 Nf3-e5 f7-f6
7/10 00:00 9,526 186,784 -0.42 Qc4xe2 Rb2xe2 Nb6-a4 Re2-e3 Ra3-b3 Be1xc3 Na4xc3 Re3xc3 Rb3xb5 Rc3-c7
8/14 00:00 53,111 717,716 -0.46 Qc4xe2 Rb2xe2 Nb6-a4 Re2-e3 Ra3-b3 Be1xc3 Na4xc3 Re3xc3 Rb3xb5 Rc3-c7 Be7-d6
8/14 00:00 55,633 678,451 -0.34 Qc4-c7 Rb2-c2 Nb6-a4 Qe2-d3 Be7-b4 Nf3-e5 f7-f6 Qd3-c4
8/14+ 00:00 59,094 656,600 -0.33 Ra8-a4
9/15+ 00:00 77,247 749,970 -0.25 Qc4-c7 Rb2-c2 Nb6-a4 Qe2-d3 Be7-b4 Nf3-e5 f7-f6 Qd3-c4
9/15+ 00:00 85,578 757,327 -0.17 Qc4-c7 Rb2-c2 Nb6-a4 Qe2-d3 Be7-b4 Nf3-e5 f7-f6 Qd3-c4
9/20 00:00 171,790 1,227,071 -0.29 Qc4-c7 Rb2-c2 Nb6-a4 h2-h3 Be7-d6 Qe2-d3 Bd6-f4 Rc2xc3 Na4xc3 Rc1xc3 Ra3xc3 Be1xc3 f7-f6 d4-d5
10/20 00:00 234,337 1,386,609 -0.29 Qc4-c7 h2-h3 Nb6-a4 Rb2-c2 Be7-d6 Qe2-d3 Bd6-f4 Rc2xc3 Na4xc3 Rc1xc3 Ra3xc3 Be1xc3 f7-f6 d4-d5
11/20+ 00:00 303,250 1,571,243 -0.20 Qc4-c7 h2-h3 Nb6-a4 Rb2-c2 Be7-d6 Qe2-d3 Bd6-f4 Rc2xc3 Na4xc3 Rc1xc3 Ra3xc3 Be1xc3 f7-f6 d4-d5
11/20 00:00 325,888 1,566,769 -0.21 Qc4-c7 h2-h3 Nb6-a4 Rb2-c2 Be7-d6 Qe2-d3 Bd6-f4 Rc2xc3 Na4xc3 Rc1xc3 Ra3xc3 Qd3xc3 f7-f6 g2-g3 Qc7xc3 Be1xc3
12/31+ 00:00 828,896 1,759,864 -0.12 Ra3-b3
12/31+ 00:00 844,351 1,751,765 -0.04 Ra3-b3
12/31+ 00:00 870,104 1,761,344 +0.08 Ra3-b3
12/31 00:00 1,046,737 1,978,708 +0.05 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Re2-c2 Kg8-f7 Be1-d2 Rb3-a3 h2-h3 c3xd2 Rc2-c7+ Kf7-g6 Rc7xb7 Ra3xd3 Rb7xb6
13/31 00:00 1,269,410 2,207,669 +0.13 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Re2-c2 h7-h5 Kg1-f1 Kg8-f7 Be1-d2 g7-g5 Bd2-e3
14/31- 00:01 2,477,187 3,238,152 +0.04 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Re2-c2 h7-h5 Kg1-f1 Kg8-f7 Be1-d2 g7-g5 Bd2-e3
14/40 00:01 2,946,354 3,495,081 +0.01 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Kg8-g7 Kf1-e2 Rd8-a8 Be1-d2 Ra8-a2
15/40 00:01 3,573,356 3,805,490 +0.02 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-b8 d4-d5 e6xd5 e4xd5 Bb7xd5 Nf3-d4 Rb3-a3 Nd4-c6 Bd5-b3 Bd3-c2 Bb3xc2 Re2xc2
16/40+ 00:01 4,907,060 4,270,722 +0.10 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 d4-d5 e6xd5 e4xd5 Bb7xd5 Nf3-d4 Rb3-a3 f2-f3 Bd5-c4 Nd4-c2 Ra3-b3 Bd3xc4+ Nb6xc4 Re2-e4 Nc4-e5
16/40+ 00:01 5,229,779 4,336,466 +0.19 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 d4-d5 e6xd5 e4xd5 Bb7xd5 Nf3-d4 Rb3-a3 f2-f3 Bd5-c4 Nd4-c2 Ra3-b3 Bd3xc4+ Nb6xc4 Re2-e4 Nc4-e5
16/40 00:01 6,485,978 4,642,790 +0.08 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Rd8-a8 Kf1-e2 Kg8-f7 e4-e5 Nb6-d5 e5xf6 Nd5-f4+ Ke2-f1 Bb7xf3 g2xf3 Kf7xf6 Bd3xh7
17/40+ 00:02 10,040,659 5,040,491 +0.17 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Rd8-a8 Kf1-e2 Kg8-f7 e4-e5 Nb6-d5 e5xf6 Nd5-f4+ Ke2-f1 Bb7xf3 g2xf3 Kf7xf6 Bd3xh7
17/40+ 00:02 11,074,021 5,177,195 +0.25 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Rd8-a8 Kf1-e2 Kg8-f7 e4-e5 Nb6-d5 e5xf6 Nd5-f4+ Ke2-f1 Bb7xf3 g2xf3 Kf7xf6 Bd3xh7
17/40 00:02 11,691,495 5,240,472 +0.08 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Rd8-a8 Kf1-e2 Kg8-f7 e4-e5 Nb6-d5 e5xf6 Nd5-f4+ Ke2-f1 Bb7xf3 g2xf3 Kf7xf6 Bd3xh7
18/40+ 00:03 15,567,090 5,268,050 +0.17 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Rd8-a8 Kf1-e2 Kg8-f7 e4-e5 Nb6-d5 e5xf6 Nd5-f4+ Ke2-f1 Bb7xf3 g2xf3 Kf7xf6 Bd3xh7
18/40+ 00:03 16,076,257 5,295,209 +0.25 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Ba3-b2 Bb1-d3 f7-f6 Kg1-f1 Ra8-d8 Re2-c2 g7-g5 h2-h3 Rd8-a8 Kf1-e2 Kg8-f7 e4-e5 Nb6-d5 e5xf6 Nd5-f4+ Ke2-f1 Bb7xf3 g2xf3 Kf7xf6 Bd3xh7
18/43 00:04 24,340,517 5,776,107 +0.35 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Rb3-b2 Re2xb2 Ba3xb2 d4-d5 e6xd5 Nf3-d4 g7-g6 e4xd5 Bb7xd5 f2-f3 Bd5-c4 Be1-h4 Kg8-g7 Kg1-f2 Nb6-d5 Bb1-e4 Ra8-b8 Bh4-g3 Rb8-b6 Rd1-e1 c3-c2 Nd4xc2 Rb6xb5
19/43 00:05 30,455,004 6,070,361 +0.35 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Rb3-b2 Re2xb2 Ba3xb2 d4-d5 e6xd5 Nf3-d4 g7-g6 e4xd5 Bb7xd5 f2-f3 Bd5-c4 Be1-h4 Kg8-g7 Kg1-f2 Nb6-d5 Bb1-e4 Ra8-b8 Bh4-g3 Rb8-b6 Rd1-e1 c3-c2 Nd4xc2 Rb6xb5
20/43 00:06 42,664,172 6,581,945 +0.35 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Rb3-b2 Re2xb2 Ba3xb2 d4-d5 e6xd5 Nf3-d4 g7-g6 e4xd5 Bb7xd5 f2-f3 Bd5-c4 Be1-h4 Kg8-g7 Kg1-f2 Nb6-d5 Bb1-e4 Ra8-b8 Bh4-g3 Rb8-b6 Rd1-e1 c3-c2 Nd4xc2 Rb6xb5
21/46 00:11 82,406,640 7,413,335 +0.34 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Rb3-b2 Re2xb2 Ba3xb2 d4-d5 e6xd5 Nf3-d4 g7-g6 e4xd5 Bb7xd5 f2-f3 Bd5-c4 Be1-h4 Kg8-g7 Kg1-f2 Nb6-d5 Bb1-e4 Ra8-b8 Bh4-g3 Rb8-b6 Rd1-e1 c3-c2 Nd4xc2 Rb6xb5 Re1-b1 f7-f6 Bg3-d6
22/46 00:17 135,990,731 7,785,580 +0.34 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Rb3-b2 Re2xb2 Ba3xb2 d4-d5 e6xd5 Nf3-d4 g7-g6 e4xd5 Bb7xd5 f2-f3 Bd5-c4 Be1-h4 Kg8-g7 Kg1-f2 Nb6-d5 Bb1-e4 Ra8-b8 Bh4-g3 Rb8-b6 Rd1-e1 c3-c2 Nd4xc2 Rb6xb5 Re1-b1 f7-f6 Bg3-d6
23/54+ 00:30 243,795,381 8,024,600 +0.42 Ra3-b3 Rb2-c2 Qc4xe2 Rc2xe2 Be7-a3 Rc1-d1 Rb3-b2 Re2xb2 Ba3xb2 d4-d5 e6xd5 Nf3-d4 g7-g6 e4xd5 Bb7xd5 f2-f3 Bd5-c4 Be1-h4 Kg8-g7 Kg1-f2 Nb6-d5 Bb1-e4 Ra8-b8 Bh4-g3 Rb8-b6 Rd1-e1 c3-c2 Nd4xc2 Rb6xb5 Re1-b1 f7-f6 Bg3-d6
23/67+ 01:12 597,036,545 8,223,417 +0.51 c3xb2
23/67+ 03:30 1,665,849,429 7,942,260 +2.18 c3xb2
23/73 05:58 2,840,617,614 7,928,086 +3.06 c3xb2 Rc1xc4 Nb6xc4 Qe2xc4 Ra3-a1 Qc4-c2 Be7-a3 Nf3-d2 Ra8-c8 Qc2-d3 Ba3-b4 f2-f3 Bb4xd2 Qd3xd2 Ra1xb1 Kg1-f2 Rb1-c1 Qd2xb2 Rc1-c2+ Qb2xc2 Rc8xc2+ Kf2-g3 Rc2-b2 h2-h4 Rb2xb5 Kg3-f4 f7-f6 Be1-c3 Kg8-f7 Kf4-e3 Rb5-b3 Ke3-d2 Bb7-a6 Kd2-c2 Ba6-c4 g2-g3
24/85 08:15 3,939,748,402 7,961,580 +3.07 c3xb2 Rc1xc4 Nb6xc4 Qe2xc4 Ra3-a1 Qc4-c2 Be7-a3 Be1-a5 Ra8xa5 Nf3-d2 Ba3-b4 Nd2-b3 Ra5-a3 Qc2xb2 Bb4-c3 Qb2-c2 Bb7xe4 Qc2xe4 Ra3xb3 Qe4xh7+ Kg8-f8 Qh7-h8+ Kf8-e7 Qh8-h4+ f7-f6 g2-g3 Ra1xb1+ Kg1-g2 Rb3xb5 Qh4-h7 Bc3xd4 Qh7xg7+ Ke7-d6 Qg7-f8+ Kd6-e5 f2-f4+ Ke5-e4 Qf8-e8 Rb1-b2+ Kg2-h3 Rb5-b6 Qe8-a8+ Rb6-b7 Kh3-g4 f6-f5+ Kg4-g5 Ke4-f3 Qa8-a3+ Kf3-g2 Qa3-d6 Rb7-g7+ Kg5-h6 Rb2-d2 Qd6xe6 Kg2xh2 Qe6xf5 Kh2xg3
6/24/2011 6:05:03 PM, Time for this analysis: 00:10:00, Rated time: 10:00I probably would never have seen it if I was playing OTB, but since you gave us the "big sac" hint, I was able to find it by myself also.
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