Test Position: Rxf3!!

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swami
Posts: 6640
Joined: Thu Mar 09, 2006 4:21 am

Test Position: Rxf3!!

Post by swami »

[d] r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 23

How long does it take for your engine/favorite engine to find Rxf3!! with significant plus for Black? (> +1.00... )
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perejaslav
Posts: 240
Joined: Sat Mar 18, 2006 4:01 am
Location: Cold

Re: Test Position: Rxf3!!

Post by perejaslav »

quad 2660 MHz

r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 1

Analysis by spark-0.3a:

...
1...Qe6 2.Kh2 Bf5 3.Qc4 Qd7 4.Rh1 h5 5.Kg2 Kh8 6.Qc5 b6 7.Qd6 Rae8 8.Bg5 Qxd6 9.Nxd6
+/= (0.62) Depth: 15/26 00:00:20 138mN
+/= (0.64) Depth: 16/26 00:00:22 147mN
1...Rf7 2.Re1 Bf8 3.Qc4 Be6 4.Nc5 Bc8 5.Rec1 Kg8 6.Kg2 h5 7.Rab1 Bd6 8.Ne4 Bb4 9.Bxb4 axb4
+/= (0.49) Depth: 16/26 00:00:24 164mN
1...Rxf3
+/= (0.37) Depth: 16/28 00:00:25 174mN
-+ (-1.56) Depth: 19/34 00:00:35 238mN
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perejaslav
Posts: 240
Joined: Sat Mar 18, 2006 4:01 am
Location: Cold

Re: Test Position: Rxf3!!

Post by perejaslav »

New game
r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 1

Analysis by Deep Fritz 8:

1...Rxf3 2.exf3 Qf5 3.Bf4 Be5 4.Kh2 Nxf4 5.Qe7+ Kg8 6.gxf4 Qxf4+ 7.Ng3 Bf5 8.Re1 Bc7
+/= (0.65) Depth: 7/13 00:00:00 126kN
-/+ (-1.01) Depth: 13/32 00:00:08 60238kN :shock: :D
-------------------------
New game
r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 1

Analysis by Deep Fritz 10:

...
1...Qf5 2.Re1 Bg4 3.Bxg4 Qxg4 4.Kg2 Qf5 5.Rac1 Rae8 6.f3 Re6 7.Rh1 b6 8.Qc2 Ne3+ 9.Bxe3 dxe3
= (0.25) Depth: 12/29 00:00:01 7749kN
= (0.11) Depth: 13/30 00:00:01 11016kN
1...Rxf3
= (0.11) Depth: 13/30 00:00:02 14192kN
-/+ (-1.18) Depth: 15/35 00:00:04 30565kN
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User avatar
David Dahlem
Posts: 900
Joined: Wed Mar 08, 2006 9:06 pm

Re: Test Position: Rxf3!!

Post by David Dahlem »

ProDeo Q3:

10 00:05 3.321.426 577.639 -1.55 Rf8xf3 e2xf3 Qe5f5 Bd2f4 Bg7f8 Qc5xd4 Bf8g7 Qd4c5 Nd5xf4 Qc5xf5 Bh3xf5 g3xf4 Bg7xb2
11 00:14 8.976.578 641.184 -2.02 Rf8xf3 e2xf3 Qe5f5 Kg1h2 Ra8f8 f3f4 Qf5h5 Rc1h1 Qh5f3 Kh2xh3 Rf8f5 Ne4g5+ h6xg5 f4xg5
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El Gringo
Posts: 118
Joined: Tue Nov 27, 2007 4:01 pm

Re: Test Position: Rxf3!!

Post by El Gringo »

Hi,

Some results :

Q6600 @ 3Ghz :

Analysis by Komodo64 1.0 JA:

+/- (0.89) 23...Rf8-c8 24.Rc1-c4 b7-b6 25.Qc5-d6 Qe5-e6 26.Bf3-g2 00:00:00
+/- (0.71) 23...Rf8-e8 24.Qc5-d6 Re8-e7 25.Rc1-c5 Qe5xd6 26.Ne4xd6 Ra8-d8 00:00:00
+/= (0.54) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.f2-f4 Qe5-g7 26.Qc5-c4 Bh3xg2 27.Kg1xg2 00:00:00
+/= (0.54) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.f2-f4 Qe5-g7 26.Qc5-c4 Bh3xg2 27.Kg1xg2 00:00:00
+/= (0.60) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c4 Bh3-f5 26.f2-f4 Qe5-g7 27.Ne4-c5 00:00:00
+/= (0.60) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c4 Bh3-f5 26.f2-f4 Qe5-g7 27.Ne4-c5 00:00:00
+/= (0.60) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c2 Bh3xg2 26.Kg1xg2 Bf8-e7 27.Rc1-h1 g6-g5 28.Ra1-c1 00:00:00
+/= (0.60) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c2 Bh3xg2 26.Kg1xg2 Bf8-e7 27.Rc1-h1 g6-g5 28.Ra1-c1 00:00:00
+/= (0.58) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c4 Bh3-f5 26.f2-f4 Qe5-g7 27.Rc1-e1 Kh7-g8 28.Ne4-c5 b7-b6 00:00:00
+/= (0.58) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c4 Bh3-f5 26.f2-f4 Qe5-g7 27.Rc1-e1 Kh7-g8 28.Ne4-c5 b7-b6 00:00:00
+/= (0.62) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c4 Bh3xg2 26.Kg1xg2 Bf8-b4 27.Qc4-c2 Bb4-e7 28.Rc1-h1 g6-g5 29.Rh1-h5 Qe5-e6 00:00:00
+/= (0.62) 23...Rf8-d8 24.Bf3-g2 Bg7-f8 25.Qc5-c4 Bh3xg2 26.Kg1xg2 Bf8-b4 27.Qc4-c2 Bb4-e7 28.Rc1-h1 g6-g5 29.Rh1-h5 Qe5-e6 00:00:00
+/= (0.50) 23...Rf8-d8 24.Qc5-c4 Rd8-f8 25.Kg1-h2 Bh3-d7 26.Qc4-c5 b7-b6 27.Qc5-d6 Rf8-f7 28.Kh2-g1 Ra8-f8 29.Rc1-c4 Qe5xd6 30.Ne4xd6 00:00:00
+/= (0.50) 23...Rf8-d8 24.Qc5-c4 Rd8-f8 25.Kg1-h2 Bh3-d7 26.Qc4-c5 b7-b6 27.Qc5-d6 Rf8-f7 28.Kh2-g1 Ra8-f8 29.Rc1-c4 Qe5xd6 30.Ne4xd6 00:00:00
+/= (0.55) 23...Rf8-d8 24.Qc5-c4 Rd8-f8 25.Rc1-e1 g6-g5 26.Qc4-c5 Rf8-d8 27.Ra1-c1 Bh3-e6 28.Qc5-a3 Bg7-f8 29.Ne4-c5 Bf8-d6 30.Qa3-a1 Bd6xc5 31.Rc1xc5 00:00:01
+/= (0.39) 23...Rf8-e8 24.Qc5-c4 Bh3-e6 25.Qc4-c2 Be6-f5 26.Rc1-e1 Nd5-b4 27.Qc2-c1 g6-g5 28.Ne4-c5 b7-b6 29.Nc5-b7 c6-c5 30.Qc1-c4 00:00:02
+/= (0.39) 23...Rf8-e8 24.Qc5-c4 Bh3-e6 25.Qc4-c2 Be6-f5 26.Rc1-e1 Nd5-b4 27.Qc2-c1 g6-g5 28.Ne4-c5 b7-b6 29.Nc5-b7 c6-c5 30.Qc1-c4 00:00:02
+/= (0.37) 23...Rf8-e8 24.Qc5-c4 Bg7-f8 25.Rc1-e1 Bf8-e7 26.Bf3-g2 Bh3xg2 27.Kg1xg2 g6-g5 28.Ra1-c1 Re8-f8 29.Re1-h1 Nd5-b6 30.Qc4-c2 Nb6-d5 31.Kg2-g1 00:00:03
+/= (0.37) 23...Rf8-e8 24.Qc5-c4 Bg7-f8 25.Rc1-e1 Bf8-e7 26.Bf3-g2 Bh3xg2 27.Kg1xg2 g6-g5 28.Ra1-c1 Re8-f8 29.Re1-h1 Nd5-b6 30.Qc4-c2 Nb6-d5 31.Kg2-g1 00:00:03
+/= (0.33) 23...Rf8-e8 24.Qc5-c4 Bg7-f8 25.Rc1-e1 Bh3-e6 26.Qc4-c1 Be6-f5 27.Bf3-g2 g6-g5 28.Bg2-f3 Bf8-e7 29.Qc1-c4 Re8-f8 30.Bf3-g2 Nd5-b6 31.Qc4-c2 Nb6-d5 32.Ne4-c5 00:00:05
+/= (0.33) 23...Rf8-e8 24.Qc5-c4 Bg7-f8 25.Rc1-e1 Bh3-e6 26.Qc4-c1 Be6-f5 27.Bf3-g2 g6-g5 28.Bg2-f3 Bf8-e7 29.Qc1-c4 Re8-f8 30.Bf3-g2 Nd5-b6 31.Qc4-c2 Nb6-d5 32.Ne4-c5 00:00:05
+/= (0.47) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-f5 26.Rc1-h1 Kh7-g8 27.Kh2-g1 h6-h5 28.Ra1-c1 Nd5-b4 29.Qc2-d1 Nb4-d5 30.Qd1-e1 Bf8-b4 31.Bd2xb4 Nd5xb4 32.Qe1-d2 Bf5-e6 33.Rc1-c5 Be6-d5 34.Ne4-g5 00:00:11
+/= (0.47) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-f5 26.Rc1-h1 Kh7-g8 27.Kh2-g1 h6-h5 28.Ra1-c1 Nd5-b4 29.Qc2-d1 Nb4-d5 30.Qd1-e1 Bf8-b4 31.Bd2xb4 Nd5xb4 32.Qe1-d2 Bf5-e6 33.Rc1-c5 Be6-d5 34.Ne4-g5 00:00:12
+/= (0.50) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-f5 26.Rc1-h1 Kh7-g8 27.Kh2-g1 h6-h5 28.Ra1-c1 Nd5-b4 29.Qc2-d1 Nb4-d5 30.Qd1-e1 Bf8-b4 31.Bd2xb4 Nd5xb4 32.Qe1-d2 Bf5-e6 33.Rc1-c5 Be6-d5 34.Qd2-h6 Qe5-g7 35.Qh6xg7+ Kg8xg7 36.Ne4-d6 Re8-e7 37.Bf3xd5 Nb4xd5 00:00:13
+/= (0.50) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-f5 26.Rc1-h1 Kh7-g8 27.Kh2-g1 h6-h5 28.Ra1-c1 Nd5-b4 29.Qc2-d1 Nb4-d5 30.Qd1-e1 Bf8-b4 31.Bd2xb4 Nd5xb4 32.Qe1-d2 Bf5-e6 33.Rc1-c5 Be6-d5 34.Qd2-h6 Qe5-g7 35.Qh6xg7+ Kg8xg7 36.Ne4-d6 Re8-e7 37.Bf3xd5 Nb4xd5 00:00:14
+/= (0.47) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-e6 26.Rc1-h1 g6-g5 27.Kh2-g1 Kh7-g8 28.Bf3-h5 Re8-d8 29.Qc2-c1 Be6-f5 30.Bh5-f3 Rd8-e8 31.Bf3-g2 Bf5-g4 32.f2-f4 g5xf4 33.g3xf4 Qe5-g7 00:00:23
+/= (0.47) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-e6 26.Rc1-h1 g6-g5 27.Kh2-g1 Kh7-g8 28.Bf3-h5 Re8-d8 29.Qc2-c1 Be6-f5 30.Bh5-f3 Rd8-e8 31.Bf3-g2 Bf5-g4 32.f2-f4 g5xf4 33.g3xf4 Qe5-g7 00:00:25
+/= (0.47) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-e6 26.Rc1-h1 g6-g5 27.Kh2-g1 Kh7-g8 28.Bf3-h5 Re8-d8 29.Qc2-c1 Be6-f5 30.Bh5-f3 Rd8-e8 31.Rh1-h2 Nd5-f6 32.Ne4xf6+ Qe5xf6 33.Bf3-h5 Re8-e6 34.f2-f4 g5xf4 35.Bd2xf4 Bf8-d6 36.Bh5-f3 Qf6-e7 37.Bf4xd6 Qe7xd6 00:00:32
+/= (0.47) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-e6 26.Rc1-h1 g6-g5 27.Kh2-g1 Kh7-g8 28.Bf3-h5 Re8-d8 29.Qc2-c1 Be6-f5 30.Bh5-f3 Rd8-e8 31.Rh1-h2 Nd5-f6 32.Ne4xf6+ Qe5xf6 33.Bf3-h5 Re8-e6 34.f2-f4 g5xf4 35.Bd2xf4 Bf8-d6 36.Bh5-f3 Qf6-e7 37.Bf4xd6 Qe7xd6 00:01:49
+/- (0.74) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Bd2-f4 Qe5xf4 26.g3xf4 Bf8xc5 27.Ne4xc5 Bh3-c8 28.Kh2-g3 Kh7-g7 29.Rc1-c4 Nd5-e7 30.Ra1-h1 Re8-f8 31.Bf3-g4 b7-b6 32.Bg4xc8 b6xc5 33.Bc8-g4 Ra8-b8 34.Rc4xc5 Rb8xb3 35.Rc5xa5 Rb3xb2 36.Ra5-c5 00:02:51
+/= (0.52) 23...Rf8-d8 24.Qc5-c4 Bg7-f8 25.Ne4-c5 b7-b6 26.Kg1-h2 Bh3-f5 27.Nc5-e4 Ra8-c8 28.Rc1-h1 Kh7-g8 29.Kh2-g1 g6-g5 30.Bf3-g2 Qe5-e6 31.f2-f4 g5xf4 32.g3xf4 Bf8-g7 33.Ne4-g3 Bf5-g4 34.Bg2-e4 Rc8-c7 35.Ra1-c1 Kg8-h8 36.f4-f5 Qe6-e5 00:05:36
+/= (0.52) 23...Rf8-d8 24.Qc5-c4 Bg7-f8 25.Ne4-c5 b7-b6 26.Kg1-h2 Bh3-f5 27.Nc5-e4 Ra8-c8 28.Rc1-h1 Kh7-g8 29.Kh2-g1 g6-g5 30.Bf3-g2 Qe5-e6 31.f2-f4 g5xf4 32.g3xf4 Bf8-g7 33.Ne4-g3 Bf5-g4 34.Bg2-e4 Rc8-c7 35.Ra1-c1 Kg8-h8 36.f4-f5 Qe6-e5 00:05:56
+/= (0.53) 23...Rf8-d8 24.Qc5-c4 Bg7-f8 25.Ne4-c5 b7-b6 26.Kg1-h2 Bh3-f5 27.Nc5-e4 Ra8-c8 28.Rc1-h1 Kh7-g8 29.Kh2-g1 g6-g5 30.Bf3-g2 Qe5-e6 31.f2-f4 g5xf4 32.g3xf4 Bf8-g7 33.Ne4-g3 Bf5-g4 34.Bg2-e4 Rc8-c7 35.f4-f5 Qe6-e5 36.Kg1-g2 b6-b5 37.Qc4-c1 h6-h5 38.Ng3xh5 Bg4xf5 39.Be4xf5 Qe5xf5 40.Bd2xa5 00:06:13
=/+ (-0.65) 23...Rf8xf3 24.e2xf3 Ra8-f8 25.Qc5-c2 Rf8xf3 26.Bd2xa5 Qe5-h5 27.Ba5-d2 Rf3-f4 28.Qc2-d1 Bh3-g4 29.Bd2xf4 Bg4xd1 30.Rc1xd1 Nd5xf4 31.g3xf4 Qh5-g4+ 32.Kg1-f1 Qg4xf4 33.b3-b4 Qf4-f7 34.Ne4-d2 Qf7-f8 35.b4-b5 Qf8-f5 36.Nd2-c4 c6xb5 37.a4xb5 Qf5xb5 38.Ra1-a8 Qb5-b3 39.Kf1-e2 Qb3-c2+ 40.Rd1-d2 00:11:54


Analysis by CM XI Sauron x64 2CPU:

+/= (0.49) 23...Qe5-e6 24.Qc5-d6 Nd5-f6 25.Qd6xe6 Bh3xe6 26.Ne4-d6 Ra8-a7 00:00:02
+/= (0.46) 23...Rf8-d8 24.Bf3-h1 Bg7-f8 25.Qc5-c2 Kh7-g8 26.e2-e3 d4xe3 27.f2xe3 00:00:03
+/= (0.59) 23...Rf8-d8 24.Rc1-c4 Bh3-d7 25.Qc5-d6 Qe5xd6 26.Ne4xd6 b7-b6 27.Bf3-g2 00:00:03
+/= (0.38) 23...Qe5-e6 24.Qc5-d6 Bg7-e5 25.Qd6xe6 Bh3xe6 26.Ne4-c5 Be6-c8 27.Bf3-g2 00:00:03
+/= (0.42) 23...Qe5-e6 24.Qc5-d6 Bg7-e5 25.Qd6xe6 Bh3xe6 26.Bf3-g2 Be6-g4 27.f2-f4 Be5-c7 00:00:03
+/= (0.31) 23...Rf8-d8 24.Rc1-c4 Kh7-h8 25.Ra1-c1 Qe5-c7 26.Rc4xd4 b7-b6 27.Qc5-c4 00:00:04
+/= (0.42) 23...Rf8-d8 24.Rc1-c4 Bh3-d7 25.Qc5-d6 Qe5-f5 26.g3-g4 Qf5-e5 27.Qd6xe5 Bg7xe5 28.Rc4-c1 00:00:06
+/= (0.28) 23...Rf8-f7 24.Rc1-c4 Bh3-e6 25.Ra1-c1 Kh7-h8 26.Rc1-e1 Nd5-b4 27.Bd2xh6 Qe5xc5 28.Ne4xc5 Be6xc4 29.Bh6xg7+ Kh8xg7 30.b3xc4 00:00:07
+/= (0.35) 23...Rf8-f7 24.Rc1-c4 Kh7-g8 25.Ra1-e1 Qe5-e6 26.Re1-c1 Bh3-g4 27.Qc5-d6 Rf7-d7 28.Qd6xe6+ Bg4xe6 00:00:12
= (0.21) 23...Qe5-e6 24.Qc5-d6 Qe6-f5 25.Rc1-e1 Bh3-g4 26.Bf3-g2 Bg4-h3 27.Bg2-h1 Qf5-f7 28.Re1-c1 00:00:14
= (0.16) 23...Qe5-e6 24.b3-b4 Nd5xb4 25.Bd2xb4 a5xb4 26.Qc5xb4 Rf8-f7 27.a4-a5 Kh7-g8 28.Bf3-g2 Ra8-f8 29.f2-f4 Rf8-e8 00:00:27
= (0.11) 23...Rf8-f7 24.Kg1-h2 Bh3-d7 25.Rc1-h1 b7-b6 26.Qc5-c4 Kh7-g8 27.Kh2-g1 h6-h5 28.Ne4-g5 Rf7-f8 00:00:36
= (0.24) 23...Rf8-f7 24.Kg1-h2 Bh3-d7 25.Rc1-h1 b7-b6 26.Qc5-c4 Kh7-g8 27.Kh2-g1 h6-h5 28.Ne4-g5 Rf7-f8 29.Ng5-e4 00:00:43
= (0.10) 23...Qe5-e6 24.b3-b4 Nd5xb4 25.Bd2xb4 a5xb4 26.Qc5xb4 Rf8-f7 27.a4-a5 Kh7-g8 28.a5-a6 b7xa6 29.Qb4-d6 Ra8-c8 30.Ra1xa6 00:00:51
= (0.07) 23...Qe5-e6 24.b3-b4 Bh3-g4 25.Bf3xg4 Qe6xg4 26.b4-b5 Nd5-f6 27.Qc5-e7 Nf6xe4 28.Qe7xe4 Qg4-h5 29.b5xc6 Ra8-e8 30.g3-g4 00:01:28
= (0.11) 23...Qe5-e6 24.Kg1-h2 Bh3-f5 25.Qc5-d6 Qe6-c8 26.Bf3-g2 Rf8-e8 27.Qd6-c5 Qc8-e6 28.Rc1-c2 Nd5-f6 29.Ne4xf6+ Bg7xf6 30.Qc5-b6 Qe6-e7 31.Bd2xa5 00:03:30
=/+ (-0.33) 23...Rf8xf3 24.e2xf3 Ra8-f8 25.Qc5-c2 Rf8xf3 26.Rc1-e1 Qe5-h5 27.Bd2xa5 Rf3-f5 28.f2-f4 Nd5-e3 29.Re1xe3 d4xe3 30.Ba5-b6 Qh5-f3 31.Ra1-e1 00:04:15
-/+ (-0.99) 23...Rf8xf3 24.e2xf3 Qe5-f5 25.Kg1-h2 Ra8-f8 26.Qc5-c2 Qf5xf3 27.Rc1-g1 Bh3-f5 28.Rg1-g2 Bf5xe4 29.d3xe4 d4-d3 30.Qc2-c5 Qf3xe4 31.f2-f4 Rf8-f5 00:05:57


Analysis by HIARCS 12.1 MP 2CPU:

+/- (0.85) 23...Rf8-e8 24.Rc1-c4 Re8-e6 25.Kg1-h2 b7-b6 26.Qc5-a3 Bh3-f5 27.Ra1-c1 Bf5xe4 28.d3xe4 Nd5-e7 00:00:00
+/= (0.65) 23...Rf8-e8 24.Kg1-h2 Bg7-f8 25.Qc5-c2 Bh3-f5 26.Kh2-g1 Bf5-e6 27.Ne4-c5 Nd5-e3 00:00:00
+/= (0.64) 23...Rf8xf3 00:00:00
+/= (0.60 !) 23...Rf8xf3 00:00:01
+/= (0.60) 23...Rf8xf3 24.e2xf3 Ra8-f8 25.Bd2xa5 Rf8xf3 26.Rc1-d1 Qe5-f5 27.b3-b4 00:00:01
+/= (0.35 !) 23...Rf8xf3 00:00:01
+/= (0.35) 23...Rf8xf3 24.e2xf3 Ra8-f8 25.Qc5-c2 00:00:02
+/= (0.45) 23...Rf8xf3 24.e2xf3 Ra8-f8 25.Qc5-c2 Rf8xf3 26.Bd2xa5 Qe5-h5 27.Qc2-d2 Bg7-e5 28.Ba5-b4 Bh3-e6 29.Bb4-d6 00:00:02
= (0.20 !) 23...Rf8xf3 00:00:04
-/+ (-0.92) 23...Rf8xf3 24.e2xf3 Qe5-f5 25.Kg1-h2 Ra8-f8 26.f3-f4 Qf5-h5 27.f2-f3 Bh3-f5+ 28.Kh2-g2 Qh5-h3+ 29.Kg2-f2 Qh3-h2+ 30.Kf2-f1 Rf8-h8 31.Qc5xa5 Bf5xe4 32.f3xe4 00:00:06
-/+ (-1.16) 23...Rf8xf3 24.e2xf3 Qe5-f5 25.Bd2-f4 Bg7-e5 00:00:10
-+ (-1.41 !) 23...Rf8xf3 00:00:16
-+ (-1.60) 23...Rf8xf3 24.e2xf3 Qe5-f5 25.Bd2-f4 Bg7-e5 26.Kg1-h2 Be5xf4 27.g3xf4 Qf5xf4+ 28.Kh2xh3 Qf4xf3+ 29.Kh3-h2 Nd5-f4 30.Qc5-e7+ Kh7-h8 31.Qe7-e5+ Kh8-g8 32.Ne4-f6+ Kg8-f7 33.Qe5-e4 Qf3xf2+ 34.Kh2-h1 Nf4-e2 35.Rc1-g1 Ne2xg1 36.Nf6-g4 Ng1-h3 37.Ng4xf2 00:00:20
-/+ (-1.35 --) 23...Rf8xf3 24.e2xf3 00:00:24


best
Johan
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Test Position: Rxf3!!

Post by yanquis1972 »

Rybka 3 also very fast here:

[-1.37] d=17 23...Rxf3 (0:01:08) 36987kN
[-1.17] d=16 23...Rxf3 24.exf3 Qf5 25.Kh2 Qxf3 26.Kxh3 Rf8 27.Nd6 Rf4 28.Qxd5 Rh4 29.Kxh4 Qxd5 30.Kh3 Qxd6 31.Kh2 Qd5 32.Rd1 Bf8 33.Kg1 h5 34.Rab1 Qxb3 35.Bxa5 Qxa4 36.Bc7 Qc2 37.Bf4 (0:00:39) 21001kN
[-1.09] d=15 23...Rxf3 24.exf3 Qf5 25.Kh2 Qxf3 26.Kxh3 Rf8 27.Nd6 Rf4 28.Qxd5 Rh4 29.Kxh4 Qxd5 30.Kh3 Qxd6 31.Kh2 Qd5 32.Rd1 Bf8 33.Kg1 h5 34.Rac1 Qxb3 35.Bxa5 (0:00:29) 15378kN
[-1.01] d=15 23...Rxf3 (0:00:25) 12987kN
[-0.61] d=15 23...Rxf3 (0:00:20) 10497kN
[-0.41] d=15 23...Rxf3 (0:00:13) 6846kN
[-0.21] d=14 23...Rxf3 24.exf3 Qh5 25.g4 Qh4 26.Qd6 Rf8 27.Qg3 Qxg3 28.fxg3 Rxf3 29.Bxa5 Bxg4 30.b4 Rxd3 31.Ra3 Re3 32.Rxe3 dxe3 33.Nc3 (0:00:07) 3693kN
[-0.29] d=13 23...Rxf3 24.exf3 Qh5 25.g4 Qh4 26.Qd6 Rf8 27.Qg3 Qxg3 28.fxg3 Rxf3 29.Bxa5 Bxg4 30.Rd1 Be5 31.Rf1 Rxd3 32.Rf7 Kg8 33.Rxb7 Bc8 34.Ra7 Bf5 35.Ra8 Kh7 (0:00:04) 1986kN
[-0.39] d=12 23...Rxf3 24.exf3 Qh5 25.g4 Qh4 26.Qd6 Rf8 27.Qg3 Qxg3 28.fxg3 Rxf3 29.Bxa5 Bxg4 30.Kh2 Re3 31.Nf2 Re2 (0:00:03) 1480kN
[-0.39] d=11 23...Rxf3 24.exf3 Qh5 25.g4 Qh4 26.Qd6 Rf8 27.Qg3 Qxg3 28.fxg3 Rxf3 29.Bxa5 Bxg4 30.Kh2 Re3 31.Nf2 Re2 (0:00:02) 1399kN
[-0.27] d=11 23...Rxf3 (0:00:01) 829kN
[+0.13] d=11 23...Rxf3 (0:00:01) 454kN
[+0.33] d=11 23...Rxf3 (0:00:00) 307kN
[+0.54] d=11 23...Rfe8 24.Kh2 Be6 25.Rh1 Bf8 26.Qc1 (0:00:00) 167kN
[+0.53] d=10 23...Rfe8 24.Kh2 Be6 25.Qc2 Bf8 26.Nc5 Bc8 27.Kg2 (0:00:00) 106kN
[+0.72] d=9 23...Rfe8 24.Kh2 Bf8 25.Bf4 Qe6 26.Bd6 Bg7 (0:00:00) 41kN
[+0.54] d=8 23...Rfe8 24.Qc4 Be6 25.Qc2 Bf8 (0:00:00) 24kN
[+0.55] d=7 23...Rfe8 24.Qc4 Bf8 25.Nc5 (0:00:00) 9kN
[+0.71] d=6 23...Rfe8 24.g4 Bf8 (0:00:00) 8kN
[+0.60] d=5 23...Rfe8 24.Bg2 (0:00:00) 4kN
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Test Position: Rxf3!!

Post by yanquis1972 »

perejaslav wrote:quad 2660 MHz

r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 1

Analysis by spark-0.3a:

...
1...Qe6 2.Kh2 Bf5 3.Qc4 Qd7 4.Rh1 h5 5.Kg2 Kh8 6.Qc5 b6 7.Qd6 Rae8 8.Bg5 Qxd6 9.Nxd6
+/= (0.62) Depth: 15/26 00:00:20 138mN
+/= (0.64) Depth: 16/26 00:00:22 147mN
1...Rf7 2.Re1 Bf8 3.Qc4 Be6 4.Nc5 Bc8 5.Rec1 Kg8 6.Kg2 h5 7.Rab1 Bd6 8.Ne4 Bb4 9.Bxb4 axb4
+/= (0.49) Depth: 16/26 00:00:24 164mN
1...Rxf3
+/= (0.37) Depth: 16/28 00:00:25 174mN
-+ (-1.56) Depth: 19/34 00:00:35 238mN
when i ran spark on this, it found Rxf3 at d14 (= rybka's d11) so either you had very bad luck or i had very good luck.
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Test Position: Rxf3!!

Post by zullil »

swami wrote:[d] r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 23

How long does it take for your engine/favorite engine to find Rxf3!! with significant plus for Black? (> +1.00... )
Stockfish-1.6.3 (8 threads):

Code: Select all

Searching: r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 2     -3.07   00:01      403 Qc7 Qxd5 cxd5 Rxc7 dxe4 dxe4 
 2     -1.62   00:01      489 Ne7 Qc4 
 2     -1.29   00:01      599 Nb4 Qc4 
 2     -1.01   00:01      669 Qe6 Bxa5 
 3     -0.53   00:01     1269 Qe6 Qd6 Be5 Qxe6 Bxe6 
 4     -0.53   00:01     2072 Qe6 Qd6 Be5 Qxe6 Bxe6 
 5     -1.09   00:01     4902 Qe6 Nd6 Bg4 Bxd5 cxd5 
 6     -0.61   00:01    13571 Qe6 Nd6 Bg4 Nxb7 Bxf3 exf3 Rxf3 Qxc6 Qxc6 Rxc6 
                              Rxd3 
 7     -0.65   00:01    19771 Qe6 Nd6 Bg4 Re1 Bxf3 exf3 Be5 Nxb7 Rxf3 Nxa5 
 8     -0.28   00:01   107540 Qe6 Kh2 Be5 Kh1 Bg4 Bxg4 Qxg4 f4 Qh3+ Kg1 
 9     -0.36   00:01   177603 Qe6 Kh2 Be5 Kh1 Bg4 Bxg4 Qxg4 f4 Bg7 Re1 Nf6 Kh2 
                              Nxe4 dxe4 
10     -0.40   00:01   417108 Qe6 Qc4 Be5 Nc5 Qf7 Kh2 Bg4 Bxg4 Qxf2+ Kh1 Qxg3 
11  <  -0.61   00&#58;01   896425 Qe6 Qd6 Qf5 Rc4 Be5 Qc5 Qd7 Bxa5 b5 axb5 
11  >  -0.20   00&#58;01    1149k Rf7 Rc4 Rxf3 exf3 Qf5 f4 Qh5 f5 gxf5 Nd6 Qf3 
12     -0.53   00&#58;01    3880k Rf7 Qc2 g5 Bg2 Bg4 Qd1 Bf8 Qe1 Bb4 Bxb4 Nxb4 f3 
                              Be6 
13     -0.73   00&#58;02    9129k Rf7 Kh2 Bf8 Qc2 Qf5 Qc4 Bg4 Bxg4 Qxg4 Rh1 Qxe2 
                              Kg1 Kh8 Qxd4+ Bg7 
14     -0.73   00&#58;05   24372k Rf7 Kh2 Bf8 Qc2 Be6 Rh1 Nb4 Qb1 Kh8 Kg1 Rh7 Bf4 
                              Qf5 Bd6 h5 Bxf8 Qxf8 Ng5 Re7 Rh4 
15  >  -0.53   00&#58;06   31805k Rf7 Kh2 Bf8 Qc2 Be6 Rh1 Nb4 Qb1 Be7 Kg1 h5 Qc1 
                              Bxb3 Bf4 Qf5 Ng5+ Bxg5 Bxg5 Kg8 
16     -0.57   00&#58;07   38535k Rf7 Kh2 Bf8 Qc2 Be6 Rh1 Nb4 Qd1 Be7 Kg1 h5 Rh2 
                              Raf8 Bxb4 Bxb4 Qc1 Kg8 Qh6 
16  >  +0.28   00&#58;08   49573k Rxf3 exf3 Qf5 Kh2 Rf8 Bxa5 Qxf3 Kxh3 Nf4+ 
17     +0.57   00&#58;14   99188k Rxf3 exf3 Qf5 Bf4 Be5 Nd6 Bxd6 Qxd6 g5 Kh2 gxf4 
                              g4 Qxd3 Qd7+ Kg8 Qe6+ Kg7 Qe4 Qxe4 fxe4 Bxg4 exd5 
                              cxd5 Rc7+ Kf6 Rg1 h5 Rxb7 
18     +1.66   00&#58;21  154148k Rxf3 exf3 Qf5 Bf4 Be5 Re1 Nxf4 Qe7+ Kg8 Ng5 Qxg5 
                              Qxg5 hxg5 Rxe5 Nxd3 Rxg5 Bf5 Rd1 c5 Rxf5 Nxb2 Rd2 
                              gxf5 Rxb2 Kf7 Rc2 b6 
Nodes&#58; 216592877
Nodes/second&#58; 7489639
Best move&#58; Rxf3
Ponder move&#58; exf3
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rightrook
Posts: 1452
Joined: Wed Mar 08, 2006 8:45 pm

Re: Test Position: Rxf3!!

Post by rightrook »

Hiarcs 11.2.....finds it in 4 seconds....(but changes) and then finds it again in 24 sec.

thanks...good test...!!

:lol:
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S.Taylor
Posts: 8514
Joined: Thu Mar 09, 2006 3:25 am
Location: Jerusalem Israel

Re: Test Position: Rxf3!!

Post by S.Taylor »

swami wrote:[d] r4r2/1p4bk/2p3pp/p1Qnq3/P2pN3/1P1P1BPb/1P1BPP2/R1R3K1 b - - 0 23

How long does it take for your engine/favorite engine to find Rxf3!! with significant plus for Black? (> +1.00... )
I like looking at these things with human eye, and it looks likes it makes the white squares around the white king so weak, that things can be done on them!
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