Brilliant Move 91: "The Art of Defense"

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Glarean
Posts: 262
Joined: Sun Oct 05, 2008 1:04 pm
Location: Switzerland
Full name: Walter Eigenmann

Brilliant Move 91: "The Art of Defense"

Post by Glarean »

.

Here comes the first of the next ten puzzles - it's number 91.
The subject is: "Art of Defense"

Black to move

[D] r2r2k1/pb1n1pp1/1p2p2p/1Bpn4/3PP3/P4P2/1P3BPP/R3K1NR b KQ - 0 16

Solution: http://glareanverlag.wordpress.com/2011 ... more-19186

Regards Walter
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ernest
Posts: 2041
Joined: Wed Mar 08, 2006 8:30 pm

Re: Brilliant Move 91: "The Art of Defense"

Post by ernest »

Houdini indeed prefers ...Nc7, but not by much.
r2r2k1/pb1n1pp1/1p2p2p/1Bpn4/3PP3/P4P2/1P3BPP/R3K1NR b KQ - 0 1
Analysis by Houdini 1.5a w32 gtb: (after depth 26)

1. = (0.00): 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.e5 bxc5 5.Ne2 c4 6.Rd1 Nd5 7.Rd2 Ba6 8.Bd4 Kf7 9.Kf2 Rb8 10.Rhd1 Rb3 11.Nc1 Rb8 12.Ne2 Rb3
2. = (0.07): 1...Nf4 2.Ne2 a6 3.Bc4 Ng6 4.0-0 cxd4 5.Bxd4 Rac8 6.Rac1 Nde5 7.Bb3 Rxc1 8.Rxc1 Nf4 9.Nxf4 Rxd4 10.Rc7 Bc6 11.Nxe6 fxe6 12.f4 Bxe4 13.Bxe6+ Kh7 14.fxe5 Rd2 15.Bh3 Rxb2 16.e6 Kg6 17.Rc8 Kf6 18.Rf8+ Ke7 19.Rf7+ Ke8 20.Rxg7 Ra2 21.Rg4 Bc6 22.Rg6 h5 23.e7 Ra1+ 24.Kf2 Ra2+ 25.Ke3 Rxa3+ 26.Kd4 Ra4+ 27.Ke5 Rc4
3. = (0.12): 1...Ne7 2.Ne2 cxd4 3.Nxd4 e5 4.Ne2 Nf8 5.Rd1 Rxd1+ 6.Kxd1 Ne6 7.Kc2 Rc8+ 8.Kb1 Nc7 9.Bc4 Ba6 10.Bxa6 Nxa6 11.Rd1 Nc7 12.Nc3 Kf8 13.b4 Ke8 14.Rd3 Ne6 15.Bg3
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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: Brilliant Move 91: "The Art of Defense"

Post by kgburcham »

12 thread HT off

Brilliant #91 Nc7

[D] r2r2k1/pb1n1pp1/1p2p2p/1Bpn4/3PP3/P4P2/1P3BPP/R3K1NR b - -

Houdini 1.5ab-16 x64
by Robert Houdart

28/62 1:54 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.Rd1 Rxd1+ 5.Kxd1 fxe4 (3.705.157.317) 32347
29/62 2:33 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.Rd1 Rxd1+ 5.Kxd1 fxe4 (5.058.014.366) 32915
30/62 3:35 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.Rd1 Rxd1+ 5.Kxd1 fxe4 (7.210.414.820) 33444
31/65 5:51 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.Rd1 Rxd1+ 5.Kxd1 fxe4 (11.929.829.759) 33933
31/65 6:32 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.Rd1 Rxd1+ 5.Kxd1 fxe4 6.fxe4 bxc5 7.Bxc5 Nb5 8.Nf3 Rc8 9.Be3 Bxe4 10.Re1 a5 11.Re2 Nd6 12.Ne5 Bb7 13.Rd2 Bd5 14.Rf2 a4 (13.345.783.517) 34024

Deep Rybka 4.1 SSE42 x64
by Vasik Rajlich

21.01 0:57 +0.01 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Rab8 (53.563.438) 935
22.01 1:02 +0.01 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Rab8 (58.932.512) 936
23.01 2:03 0.00 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Rab8 (119.647.732) 968
24.01 2:21 0.00 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Rab8 (136.827.363) 965
25.01 8:40 -0.04 1...Nf4 2.Bg3 g5 3.Ne2 Nxg2+ 4.Kf2 Nh4 5.Rhc1 cxd4 (495.885.620) 953
25.01 16:24 -0.04 1...Nf4 2.Bg3 g5 3.Ne2 Nxg2+ 4.Kf2 Nh4 5.Rhc1 cxd4 (909.852.672) 924

HIARCS 13.2 MP (2048 MB)
by Mark John Uniacke

21/42 0:20 0.00 1...Nf4 2.Ne2 a6 3.Nxf4 axb5 4.dxc5 Nxc5 5.Ke2 Nb3 (110.002.848) 5497
22/47 0:33 -0.01 1...Nf4 2.Ne2 a6 3.Bc4 Ng6 4.Rd1 Rac8 5.Ba2 a5 6.Bb1 Ba6 7.Be3 cxd4 (193.710.991) 5735
23/47 0:54 +0.19 1...Nf4 2.Ne2 a6 3.Bc4 Ng6 4.Rd1 Rac8 5.Bd3 cxd4 6.Bxd4 Nc5 (318.077.401) 5828
23/47 1:24 +0.18 1...Ne7 (514.790.486) 6093
23/52 6:26 +0.12 1...Ne7 2.Rc1 Bc6 3.Be2 cxd4 4.Bxd4 Rab8 5.b4 (2.596.726.367) 6711

Stockfish 2.0 JA 64bit
by Tord Romstad, Marco Costalba, Joona Kii

28/32 0:35 +0.08-- 1...Nf4 2.Ne2 a6 3.Bc4 Ng6 4.Rd1 cxd4 5.Bxd4 Rac8 (551.688.490) 15479
29/35 0:51 -0.04 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.dxc5 Rab8 (832.852.284) 16030
30/21 1:20 -0.12++ 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.dxc5 Bc6 (1.334.592.949) 16572
31/24 1:59 0.00 1...Nf4 2.Bg3 Ng6 3.Rc1 a6 4.Bxd7 Rxd7 5.dxc5 bxc5 6.Ne2 Rad8 (1.999.723.295) 16780
32/36 2:24 -0.04 1...Nf4 2.Bg3 Ng6 3.Rc1 a6 4.Bxd7 Rxd7 5.dxc5 bxc5 6.Ne2 Rad8 (2.438.354.696) 16876
33/33 3:00 -0.12 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 (3.077.803.466) 17073
34/36 3:33 -0.04 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 6.Rd1 Rab8 (3.680.390.624) 17220
35/39 4:18 -0.04 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 6.Rd1 Rab8 (4.481.518.606) 17360
36/10 5:27 -0.12++ 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 6.Rd1 (5.756.992.024) 17573

Critter 1.0 64-bit SSE4
by Richard Vida

23/51 0:22 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.e5 Ba6 5.b4 Nd5 6.Ne2 Bxe2 (402.077.395) 17505
24/51 0:40 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.e5 Ba6 5.b4 Nd5 6.Ne2 Bxe2 (708.343.293) 17667
25/51 0:46 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.e5 Ba6 5.b4 Nd5 6.Ne2 Bxe2 (832.287.913) 17971
26/53 1:06 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.e5 Ba6 5.b4 Nd5 6.Ne2 Bxe2 (1.238.019.875) 18682
27/53 1:32 0.00 1...Nc7 2.Bxd7 Rxd7 3.dxc5 f5 4.e5 Ba6 5.b4 Nd5 6.Ne2 Bxe2 (1.797.126.240) 19484
28/56 3:26 -0.01 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 6.Rd1 cxd4 (4.324.656.713) 20982
29/56 4:54 0.00 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 6.Rd1 cxd4 (6.347.586.638) 21535
30/56 9:56 -0.01 1...Nf4 2.Ne2 a6 3.Bc4 b5 4.Nxf4 bxc4 5.Ne2 Bc6 6.Rd1 cxd4 (13.454.029.926) 22546

Zappa Mexico II
by Anthony Cozzie

16/41 0:20 +0.10 1...N5f6 2.Ne2 a6 3.Bxd7 Nxd7 4.dxc5 Nxc5 5.Bxc5 bxc5 6.Rd1 Rxd1+ 7.Kxd1 Rf8 (270.902.212) 13235
16/41 0:33 +0.10 1...N5f6 2.Ne2 a6 3.Bxd7 Nxd7 4.dxc5 Nxc5 5.Bxc5 bxc5 6.Rd1 Rxd1+ 7.Kxd1 Rf8 (445.088.319) 13096
17/43 1:05 +0.01 1...N5f6 2.Ne2 Rac8 3.Nc3 cxd4 4.Bxd4 e5 5.Be3 Nc5 6.Rd1 Rxd1+ 7.Kxd1 Nb3 (840.254.721) 12902
17/43 1:24 +0.01 1...N5f6 2.Ne2 Rac8 3.Nc3 cxd4 4.Bxd4 e5 5.Be3 Nc5 6.Rd1 Rxd1+ 7.Kxd1 Nb3 (1.081.880.605) 12808
18/53 2:24 +0.02 1...N5f6 2.Ne2 Rac8 3.Nc3 cxd4 4.Bxd4 e5 5.Be3 Nc5 6.Rd1 Rxd1+ 7.Kxd1 Nb3 (1.817.250.625) 12543
18/53 3:28 +0.02 1...N5f6 2.Ne2 Rac8 3.Nc3 cxd4 4.Bxd4 e5 5.Be3 Nc5 6.Rd1 Rxd1+ 7.Kxd1 Nb3 (2.599.743.919) 12445
19/53 6:46 +0.08 1...N5f6 2.Ne2 Rac8 3.Nc3 cxd4 4.Bxd4 e5 5.Be3 Nc5 6.Rd1 Rxd1+ (4.997.585.181) 12284
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