Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

JWorcester
Posts: 18
Joined: Mon Jan 25, 2010 11:37 pm
Location: United Kingdom

Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Post by JWorcester »

[D] r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19

Here Moro played Na4. I wonder if he considered Nd5 at all. Critter thinks this is best at 22 plies. I haven't looked at all the variations with a program but it looks like white comes out with a nice advantage.
Top
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Post by zullil »

JWorcester wrote:[D] r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19

Here Moro played Na4. I wonder if he considered Nd5 at all. Critter thinks this is best at 22 plies. I haven't looked at all the variations with a program but it looks like white comes out with a nice advantage.
My Critter-1.4 (8 threads, 2GB hash) has chosen Qe3 each time I've tested:

Code: Select all

27/82  39:34 26130458677 11002738  +0.54 Qe3 Bd8 Be2 Rb8 e5 dxe5 Na4 e4 fxe4 Bxe4+ Ka2 e5 Rd2 Qe7 f3 Bf5 Qxe5 Qxe5 Bxe5 Rc8 Bxf6 gxf6 Rxg8+ Kxg8 c5 bxc5 Bc4 Kf8 Kb3 Ke7 Nc3 Be6 Nd5+ Ke8 a4 f5 Rd1 Bg5 f4 Bd8 Kc3 Rb8
Which version of Critter did you use? How many threads? Can you reproduce the selection?
Top
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Post by Terry McCracken »

JWorcester wrote:[D] r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19

Here Moro played Na4. I wonder if he considered Nd5 at all. Critter thinks this is best at 22 plies. I haven't looked at all the variations with a program but it looks like white comes out with a nice advantage.
Funny...I was looking at Nd5!? as well. I thought that was the opening innovation.
Terry McCracken
Top
Robert Flesher
Posts: 1280
Joined: Tue Aug 18, 2009 3:06 am

Re: Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Post by Robert Flesher »

zullil wrote:
JWorcester wrote:[D] r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19

Here Moro played Na4. I wonder if he considered Nd5 at all. Critter thinks this is best at 22 plies. I haven't looked at all the variations with a program but it looks like white comes out with a nice advantage.
My Critter-1.4 (8 threads, 2GB hash) has chosen Qe3 each time I've tested:

Code: Select all

27/82  39:34 26130458677 11002738  +0.54 Qe3 Bd8 Be2 Rb8 e5 dxe5 Na4 e4 fxe4 Bxe4+ Ka2 e5 Rd2 Qe7 f3 Bf5 Qxe5 Qxe5 Bxe5 Rc8 Bxf6 gxf6 Rxg8+ Kxg8 c5 bxc5 Bc4 Kf8 Kb3 Ke7 Nc3 Be6 Nd5+ Ke8 a4 f5 Rd1 Bg5 f4 Bd8 Kc3 Rb8
Which version of Critter did you use? How many threads? Can you reproduce the selection?


Modified Stockfish


New game
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 1

Analysis by Stockfish 2.1.1 JA 64bit:

1.Na4 e5 2.Qe3 Bd8 3.Bc1 Nxh5
= (0.20) Depth: 6/6 00:00:00 12kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 7/10 00:00:00 17kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 8/11 00:00:00 27kN
1.Bd3 Rgc8 2.Na4 e5 3.Qe3 Bd8 4.f4 Nxh5 5.fxe5 dxe5
= (0.12) Depth: 9/11 00:00:00 101kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 10/16 00:00:00 196kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 11/16 00:00:00 245kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 12/18 00:00:00 409kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 13/19 00:00:00 521kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 14/19 00:00:00 763kN
1.Qe3 a4 2.Bd3 Bd8 3.Bc2 Rc8 4.Bxa4 Qxc4 5.Rxd6 Bc7 6.Rd4 Qc5 7.Rdd1 Be5 8.Qxc5 Rxc5
+/= (0.32) Depth: 15/22 00:00:00 2263kN
1.Bd3 e5 2.Qe3 Nd7 3.Be2 Rac8 4.f4 exf4 5.Qxf4 Ne5 6.Nd5 Bxd5 7.exd5 Bg5 8.Qf5 Rge8 9.f4 Qd7 10.Qxd7 Nxd7 11.Bg4
+/= (0.44) Depth: 16/27 00:00:01 7107kN
1.Bd3 e5 2.Qe3 Nd7 3.Be2 Rac8 4.f4 exf4 5.Qxf4 Ne5 6.Nd5 Bxd5 7.exd5 Bg5 8.Qf5 Rge8 9.f4 Qd7 10.Qxd7 Nxd7 11.Bg4
+/= (0.44) Depth: 17/27 00:00:02 7431kN
1.Bd3 Rae8 2.Qe3 Bd8 3.Ka2 e5 4.f4 Nxh5 5.fxe5 dxe5 6.Nd5 Bxd5 7.exd5 Nf4 8.c5 Nxd3 9.Rxd3 Qxc5 10.Qxc5 bxc5 11.Re3 Bf6
+/= (0.40) Depth: 18/28 00:00:04 16083kN
1.Bd3 Rae8 2.Qe3 Bd8 3.Ka2 e5 4.f4 Nxh5 5.fxe5 dxe5 6.Nd5 Bxd5 7.exd5 Nf4 8.Rg4 Nxd3 9.Qxd3 Qc8 10.Rdg1 f5 11.Rg6 Bf6 12.d6
+/= (0.48) Depth: 19/30 00:00:04 18774kN
1.Qe3 a4 2.Bd3 Ra5 3.Rg2 Qc5 4.Qxc5 dxc5 5.Bc2 Rga8 6.Ne2 Rb8 7.Rdg1 Rg8 8.Nf4 Raa8 9.Bc3 Ra7 10.Kb2 Raa8 11.Rd1 Rgd8 12.Rxd8+ Rxd8 13.Bxa4
+/- (0.72) Depth: 20/31 00:00:12 52666kN
1.Qe3 e5 2.Be2 Rac8 3.f4 Qc5 4.Qxc5 Rxc5 5.Nd5 Nxd5 6.cxd5 f6 7.Rc1 Rxc1+ 8.Bxc1 f5 9.fxe5 dxe5 10.Be3 fxe4 11.d6 Bxd6 12.Bxb6 Rf8 13.Kb2
+/- (0.88) Depth: 21/31 00:00:15 67646kN
1.Qe3 e5 2.Be2 Rad8 3.f4 Qc5 4.Nd5 Qxe3 5.fxe3 Bxd5 6.exd5 exf4 7.exf4 Nd7 8.Bg4 Bf6 9.Rde1 Nc5 10.Bxf6 gxf6 11.Kc2 Rde8 12.Rxe8 Rxe8 13.Kd2 Rg8
+/- (0.88) Depth: 22/36 00:00:19 83152kN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Qf5 Bd6 9.f3 Qc8 10.Bd3 Qxf5 11.Bxf5 Nxh5 12.Kc2
+/- (0.76) Depth: 23/36 00:00:29 130mN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Ka2 e4 9.Qf5 Qd7 10.Qxd7 Nxd7 11.Rg2 Nf6 12.a4 Rc8 13.Kb3 Rgd8 14.Be5
+/- (0.84) Depth: 24/36 00:00:35 157mN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Ka2 e4 9.Qf5 Qd7 10.Qxd7 Nxd7 11.Rg2 Nf6 12.a4 Rc8 13.Kb3 Rgd8 14.Be5
+/- (0.84) Depth: 25/36 00:00:39 173mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bxd6 Nf6 10.Rxb6 g4 11.Rb7 gxf3 12.e5 Ng4 13.Rxf7
+- (1.93) Depth: 26/39 00:01:52 522mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bd4 g4 10.Rxd6 Kg8 11.Rxb6 gxf3 12.Bd3 Nf4 13.Kc2 Rad8 14.Rb7 f5 15.b6 Nxd3 16.Kxd3 Rxe4 17.Kc4 Kf8
+- (1.85) Depth: 27/45 00:02:11 614mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bd4 g4 10.Rxd6 Kg8 11.Rxb6 gxf3 12.Bd3 Nf4 13.Kc2 Rad8 14.d6 Nxd3 15.Kxd3 f6 16.Rc6 Kf7 17.Bb6 Rd7 18.Bxa5 Ke6
+- (1.85) Depth: 28/46 00:02:25 679mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bxd6 Nf6 10.Rxb6 g4 11.Rc6 gxf3 12.Bd3 Nxe4 13.Bxe4 Rxe4 14.b6 Re1+ 15.Kc2 Re2+ 16.Kd3 Rb2 17.Be5 Rxf2
+- (2.02) Depth: 29/46 00:04:00 1145mN

(, Microsoft 31.12.2011)
Top
Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Post by Terry McCracken »

Robert Flesher wrote:
zullil wrote:
JWorcester wrote:[D] r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19

Here Moro played Na4. I wonder if he considered Nd5 at all. Critter thinks this is best at 22 plies. I haven't looked at all the variations with a program but it looks like white comes out with a nice advantage.
My Critter-1.4 (8 threads, 2GB hash) has chosen Qe3 each time I've tested:

Code: Select all

27/82  39:34 26130458677 11002738  +0.54 Qe3 Bd8 Be2 Rb8 e5 dxe5 Na4 e4 fxe4 Bxe4+ Ka2 e5 Rd2 Qe7 f3 Bf5 Qxe5 Qxe5 Bxe5 Rc8 Bxf6 gxf6 Rxg8+ Kxg8 c5 bxc5 Bc4 Kf8 Kb3 Ke7 Nc3 Be6 Nd5+ Ke8 a4 f5 Rd1 Bg5 f4 Bd8 Kc3 Rb8
Which version of Critter did you use? How many threads? Can you reproduce the selection?


Modified Stockfish


New game
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 1

Analysis by Stockfish 2.1.1 JA 64bit:

1.Na4 e5 2.Qe3 Bd8 3.Bc1 Nxh5
= (0.20) Depth: 6/6 00:00:00 12kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 7/10 00:00:00 17kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 8/11 00:00:00 27kN
1.Bd3 Rgc8 2.Na4 e5 3.Qe3 Bd8 4.f4 Nxh5 5.fxe5 dxe5
= (0.12) Depth: 9/11 00:00:00 101kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 10/16 00:00:00 196kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 11/16 00:00:00 245kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 12/18 00:00:00 409kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 13/19 00:00:00 521kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 14/19 00:00:00 763kN
1.Qe3 a4 2.Bd3 Bd8 3.Bc2 Rc8 4.Bxa4 Qxc4 5.Rxd6 Bc7 6.Rd4 Qc5 7.Rdd1 Be5 8.Qxc5 Rxc5
+/= (0.32) Depth: 15/22 00:00:00 2263kN
1.Bd3 e5 2.Qe3 Nd7 3.Be2 Rac8 4.f4 exf4 5.Qxf4 Ne5 6.Nd5 Bxd5 7.exd5 Bg5 8.Qf5 Rge8 9.f4 Qd7 10.Qxd7 Nxd7 11.Bg4
+/= (0.44) Depth: 16/27 00:00:01 7107kN
1.Bd3 e5 2.Qe3 Nd7 3.Be2 Rac8 4.f4 exf4 5.Qxf4 Ne5 6.Nd5 Bxd5 7.exd5 Bg5 8.Qf5 Rge8 9.f4 Qd7 10.Qxd7 Nxd7 11.Bg4
+/= (0.44) Depth: 17/27 00:00:02 7431kN
1.Bd3 Rae8 2.Qe3 Bd8 3.Ka2 e5 4.f4 Nxh5 5.fxe5 dxe5 6.Nd5 Bxd5 7.exd5 Nf4 8.c5 Nxd3 9.Rxd3 Qxc5 10.Qxc5 bxc5 11.Re3 Bf6
+/= (0.40) Depth: 18/28 00:00:04 16083kN
1.Bd3 Rae8 2.Qe3 Bd8 3.Ka2 e5 4.f4 Nxh5 5.fxe5 dxe5 6.Nd5 Bxd5 7.exd5 Nf4 8.Rg4 Nxd3 9.Qxd3 Qc8 10.Rdg1 f5 11.Rg6 Bf6 12.d6
+/= (0.48) Depth: 19/30 00:00:04 18774kN
1.Qe3 a4 2.Bd3 Ra5 3.Rg2 Qc5 4.Qxc5 dxc5 5.Bc2 Rga8 6.Ne2 Rb8 7.Rdg1 Rg8 8.Nf4 Raa8 9.Bc3 Ra7 10.Kb2 Raa8 11.Rd1 Rgd8 12.Rxd8+ Rxd8 13.Bxa4
+/- (0.72) Depth: 20/31 00:00:12 52666kN
1.Qe3 e5 2.Be2 Rac8 3.f4 Qc5 4.Qxc5 Rxc5 5.Nd5 Nxd5 6.cxd5 f6 7.Rc1 Rxc1+ 8.Bxc1 f5 9.fxe5 dxe5 10.Be3 fxe4 11.d6 Bxd6 12.Bxb6 Rf8 13.Kb2
+/- (0.88) Depth: 21/31 00:00:15 67646kN
1.Qe3 e5 2.Be2 Rad8 3.f4 Qc5 4.Nd5 Qxe3 5.fxe3 Bxd5 6.exd5 exf4 7.exf4 Nd7 8.Bg4 Bf6 9.Rde1 Nc5 10.Bxf6 gxf6 11.Kc2 Rde8 12.Rxe8 Rxe8 13.Kd2 Rg8
+/- (0.88) Depth: 22/36 00:00:19 83152kN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Qf5 Bd6 9.f3 Qc8 10.Bd3 Qxf5 11.Bxf5 Nxh5 12.Kc2
+/- (0.76) Depth: 23/36 00:00:29 130mN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Ka2 e4 9.Qf5 Qd7 10.Qxd7 Nxd7 11.Rg2 Nf6 12.a4 Rc8 13.Kb3 Rgd8 14.Be5
+/- (0.84) Depth: 24/36 00:00:35 157mN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Ka2 e4 9.Qf5 Qd7 10.Qxd7 Nxd7 11.Rg2 Nf6 12.a4 Rc8 13.Kb3 Rgd8 14.Be5
+/- (0.84) Depth: 25/36 00:00:39 173mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bxd6 Nf6 10.Rxb6 g4 11.Rb7 gxf3 12.e5 Ng4 13.Rxf7
+- (1.93) Depth: 26/39 00:01:52 522mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bd4 g4 10.Rxd6 Kg8 11.Rxb6 gxf3 12.Bd3 Nf4 13.Kc2 Rad8 14.Rb7 f5 15.b6 Nxd3 16.Kxd3 Rxe4 17.Kc4 Kf8
+- (1.85) Depth: 27/45 00:02:11 614mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bd4 g4 10.Rxd6 Kg8 11.Rxb6 gxf3 12.Bd3 Nf4 13.Kc2 Rad8 14.d6 Nxd3 15.Kxd3 f6 16.Rc6 Kf7 17.Bb6 Rd7 18.Bxa5 Ke6
+- (1.85) Depth: 28/46 00:02:25 679mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bxd6 Nf6 10.Rxb6 g4 11.Rc6 gxf3 12.Bd3 Nxe4 13.Bxe4 Rxe4 14.b6 Re1+ 15.Kc2 Re2+ 16.Kd3 Rb2 17.Be5 Rxf2
+- (2.02) Depth: 29/46 00:04:00 1145mN

(, Microsoft 31.12.2011)
Looks like my instincts were correct. :)
Terry McCracken
Top
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Test Position - Morozevich-Vitijugov Reggio Emilia 2011

Post by zullil »

Robert Flesher wrote:
zullil wrote:
JWorcester wrote:[D] r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19


Modified Stockfish


New game
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 1

Analysis by Stockfish 2.1.1 JA 64bit:

1.Na4 e5 2.Qe3 Bd8 3.Bc1 Nxh5
= (0.20) Depth: 6/6 00:00:00 12kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 7/10 00:00:00 17kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 8/11 00:00:00 27kN
1.Bd3 Rgc8 2.Na4 e5 3.Qe3 Bd8 4.f4 Nxh5 5.fxe5 dxe5
= (0.12) Depth: 9/11 00:00:00 101kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 10/16 00:00:00 196kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 11/16 00:00:00 245kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 12/18 00:00:00 409kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 13/19 00:00:00 521kN
1.Na4 e5 2.Qe3 Bd8 3.Qd2 Be7
= (0.00) Depth: 14/19 00:00:00 763kN
1.Qe3 a4 2.Bd3 Bd8 3.Bc2 Rc8 4.Bxa4 Qxc4 5.Rxd6 Bc7 6.Rd4 Qc5 7.Rdd1 Be5 8.Qxc5 Rxc5
+/= (0.32) Depth: 15/22 00:00:00 2263kN
1.Bd3 e5 2.Qe3 Nd7 3.Be2 Rac8 4.f4 exf4 5.Qxf4 Ne5 6.Nd5 Bxd5 7.exd5 Bg5 8.Qf5 Rge8 9.f4 Qd7 10.Qxd7 Nxd7 11.Bg4
+/= (0.44) Depth: 16/27 00:00:01 7107kN
1.Bd3 e5 2.Qe3 Nd7 3.Be2 Rac8 4.f4 exf4 5.Qxf4 Ne5 6.Nd5 Bxd5 7.exd5 Bg5 8.Qf5 Rge8 9.f4 Qd7 10.Qxd7 Nxd7 11.Bg4
+/= (0.44) Depth: 17/27 00:00:02 7431kN
1.Bd3 Rae8 2.Qe3 Bd8 3.Ka2 e5 4.f4 Nxh5 5.fxe5 dxe5 6.Nd5 Bxd5 7.exd5 Nf4 8.c5 Nxd3 9.Rxd3 Qxc5 10.Qxc5 bxc5 11.Re3 Bf6
+/= (0.40) Depth: 18/28 00:00:04 16083kN
1.Bd3 Rae8 2.Qe3 Bd8 3.Ka2 e5 4.f4 Nxh5 5.fxe5 dxe5 6.Nd5 Bxd5 7.exd5 Nf4 8.Rg4 Nxd3 9.Qxd3 Qc8 10.Rdg1 f5 11.Rg6 Bf6 12.d6
+/= (0.48) Depth: 19/30 00:00:04 18774kN
1.Qe3 a4 2.Bd3 Ra5 3.Rg2 Qc5 4.Qxc5 dxc5 5.Bc2 Rga8 6.Ne2 Rb8 7.Rdg1 Rg8 8.Nf4 Raa8 9.Bc3 Ra7 10.Kb2 Raa8 11.Rd1 Rgd8 12.Rxd8+ Rxd8 13.Bxa4
+/- (0.72) Depth: 20/31 00:00:12 52666kN
1.Qe3 e5 2.Be2 Rac8 3.f4 Qc5 4.Qxc5 Rxc5 5.Nd5 Nxd5 6.cxd5 f6 7.Rc1 Rxc1+ 8.Bxc1 f5 9.fxe5 dxe5 10.Be3 fxe4 11.d6 Bxd6 12.Bxb6 Rf8 13.Kb2
+/- (0.88) Depth: 21/31 00:00:15 67646kN
1.Qe3 e5 2.Be2 Rad8 3.f4 Qc5 4.Nd5 Qxe3 5.fxe3 Bxd5 6.exd5 exf4 7.exf4 Nd7 8.Bg4 Bf6 9.Rde1 Nc5 10.Bxf6 gxf6 11.Kc2 Rde8 12.Rxe8 Rxe8 13.Kd2 Rg8
+/- (0.88) Depth: 22/36 00:00:19 83152kN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Qf5 Bd6 9.f3 Qc8 10.Bd3 Qxf5 11.Bxf5 Nxh5 12.Kc2
+/- (0.76) Depth: 23/36 00:00:29 130mN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Ka2 e4 9.Qf5 Qd7 10.Qxd7 Nxd7 11.Rg2 Nf6 12.a4 Rc8 13.Kb3 Rgd8 14.Be5
+/- (0.84) Depth: 24/36 00:00:35 157mN
1.Qe3 e5 2.Be2 Rae8 3.f4 Nd7 4.fxe5 dxe5 5.Nd5 Bxd5 6.exd5 Bc5 7.Qf3 Nf6 8.Ka2 e4 9.Qf5 Qd7 10.Qxd7 Nxd7 11.Rg2 Nf6 12.a4 Rc8 13.Kb3 Rgd8 14.Be5
+/- (0.84) Depth: 25/36 00:00:39 173mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bxd6 Nf6 10.Rxb6 g4 11.Rb7 gxf3 12.e5 Ng4 13.Rxf7
+- (1.93) Depth: 26/39 00:01:52 522mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bd4 g4 10.Rxd6 Kg8 11.Rxb6 gxf3 12.Bd3 Nf4 13.Kc2 Rad8 14.Rb7 f5 15.b6 Nxd3 16.Kxd3 Rxe4 17.Kc4 Kf8
+- (1.85) Depth: 27/45 00:02:11 614mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bd4 g4 10.Rxd6 Kg8 11.Rxb6 gxf3 12.Bd3 Nf4 13.Kc2 Rad8 14.d6 Nxd3 15.Kxd3 f6 16.Rc6 Kf7 17.Bb6 Rd7 18.Bxa5 Ke6
+- (1.85) Depth: 28/46 00:02:25 679mN
1.Nd5 Bxd5 2.cxd5 e5 3.Rc1 Qd8 4.Rc6 Re8 5.Qe3 Nxh5 6.Bxe5 Bg5 7.Rxg5 Qxg5 8.Qxg5 hxg5 9.Bxd6 Nf6 10.Rxb6 g4 11.Rc6 gxf3 12.Bd3 Nxe4 13.Bxe4 Rxe4 14.b6 Re1+ 15.Kc2 Re2+ 16.Kd3 Rb2 17.Be5 Rxf2
+- (2.02) Depth: 29/46 00:04:00 1145mN

(, Microsoft 31.12.2011)
My unmodified Stockfish-2.2 prefers Qe3 still:

Code: Select all

Searching: r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - 0 19
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 1   -0.20   00:01     140  Na4 
 2   -0.28   00:01    1113  Na4 e5 
 3   -0.48   00:01    2354  Na4 e5 Qe3 
 4   -0.28   00:01    3135  Na4 e5 Qe3 Nd7 
 5   -0.12   00:01    4284  Na4 e5 Qe3 Bd8 Qd2 
 6   -0.16   00:01    5405  Na4 e5 Qe3 Bd8 Bh3 Nxh5 
 7   +0.00   00:01    8228  Na4 e5 Qe3 Bd8 Qd2 Be7 
 8   +0.00   00:01   11986  Na4 e5 Qe3 Bd8 Qd2 Be7 
 9   +0.00   00:01   15716  Na4 e5 Qe3 Bd8 Qd2 Be7 
10   +0.00   00:01   25816  Na4 e5 Qe3 Bd8 Qd2 Be7 
11   +0.00   00:01   35720  Na4 e5 Qe3 Bd8 Qd2 Be7 
12   +0.00   00:01   56092  Na4 e5 Qe3 Bd8 Qd2 Be7 
13   +0.00   00:01  106075  Na4 e5 Qe3 Bd8 Qd2 Be7 
14   +0.00   00:01  202344  Na4 e5 Qe3 Bd8 Qd2 Be7 
15   +0.00   00:01  269680  Na4 e5 Qe3 Bd8 Qd2 Be7 
16   +0.00   00:01  401587  Na4 e5 Qe3 Bd8 Qd2 Be7 
17   +0.00   00:01  687871  Na4 e5 Qe3 Bd8 Qd2 Be7 
18   +0.28   00:02   6748K  Qe3 a4 Be2 Rgc8 Rg2 Qc5 Rdg1 Qxe3 fxe3 Bf8 Na2 e5 
                            Rh2 Kg8 Nb4 Be7 Bd3 Rab8 Nd5 Nxd5 exd5 
19   +0.24   00:02   8140K  Qe3 a4 Be2 Rgc8 Rg2 Qc5 Rdg1 Qxe3 fxe3 Bf8 Na2 e5 
                            Nc3 Nxh5 f4 Nf6 Nd5 Nxd5 exd5 exf4 Bxg7+ Bxg7 Rxg7 
                            fxe3 Rxf7 
20   +0.28   00:03  15350K  Qe3 a4 Be2 Rgc8 Rg2 Qc5 Qd2 e5 Rdg1 Bf8 Rh1 Be7 Bd3 
                            Rg8 Rhg1 Nd7 Bc1 Bg5 Qc2 f6 Nxa4 Qd4 Bxg5 fxg5 
21   +0.53   00:05  27780K  Qe3 a4 Be2 Rgc8 Rg2 Qc5 Qd2 e5 Rdg1 Bf8 Rh1 Be7 Bd3 
                            Nd7 Rhg1 Rg8 Qc2 Qc7 Bc1 Rac8 Nxa4 Nc5 Nxc5 Qxc5 f4 
22   +0.44   00:06  32111K  Qe3 a4 Be2 Rgc8 Rg2 Qc5 Qd2 e5 Rdg1 Rg8 Bd3 Nd7 Qc2 
                            Bg5 Bc1 Bxc1 Qxc1 Qd4 Be2 Qc5 Kc2 Qd4 Qe3 Nc5 Qxd4 
                            exd4 
23   +0.40   00:10  60447K  Qe3 a4 Be2 Kh7 f4 Kh8 f5 e5 f4 Nd7 Nd5 Bxd5 Rxd5 Bf6 
                            fxe5 Nxe5 Bd4 Nd7 Ka2 Be5 Kb2 Nc5 Bxe5 dxe5 Bf3 
24   +0.36   00:20 141717K  Qe3 a4 Be2 Kh7 f4 Kh8 f5 e5 f4 Rae8 fxe5 dxe5 Nd5 
                            Nxd5 cxd5 Bc5 Qc3 Qd6 
25   +0.85   00:40 285463K  Qe3 e5 Be2 Rae8 f4 Nd7 fxe5 dxe5 Rxd7 Qxd7 Qxb6 Rb8 
                            Qe3 Bg5 Qg3 f6 Rd1 Qe6 Nd5 Rgd8 Bc3 Ra8 Bg4 Qd6 Bd2 
                            Bxd2 Rxd2 Bxd5 exd5 
26   +1.01   01:03 460272K  Qe3 e5 Be2 Rae8 f4 Nd7 fxe5 dxe5 Rxd7 Qxd7 Qxb6 Rb8 
                            Qe3 Bg5 Qg3 f6 Nd5 Rgd8 Bc1 Qf7 Kb2 Rbc8 Bxg5 hxg5 
                            Qe3 Kg8 Qh3 f5 Rxg5 fxe4 
27   +0.81   01:22 605975K  Qe3 e5 Be2 Rad8 f4 Nd7 Nd5 Bxd5 exd5 Bf6 Bd3 Nc5 
                            fxe5 Bxe5 Bxe5 dxe5 f3 Nxd3 Qxd3 Qd6 Kb2 g5 hxg6 
                            Rxg6 Qe4 Rc8 Rxg6 fxg6 Qg4 Rc7 
28   +0.93   01:44 775403K  Qe3 Rab8 Na4 e5 Nxb6 Nxe4 fxe4 Qxb6 c5 dxc5 Bxe5 Qe6 
                            Qc3 Bxe4+ Kb2 Bf6 Bxf6 gxf6 Rxg8+ Rxg8 Qxa5 Rg5 Qc3 
                            Rf5 Rd8+ Kg7 Qg3+ Rg5 Qd6 Qe5+ Qxe5 fxe5 b6 Rf5 Bd3 
                            Rxf2+ Kc3 
29   +0.97   03:11   1460M  Qe3 e5 Be2 Nd7 f4 Rad8 Nd5 Bxd5 exd5 Bf6 Bd3 Nc5 
                            fxe5 Bxe5 Bxe5 dxe5 f3 Nxd3 Qxd3 Qc5 Rg2 Rd7 Kb2 f6 
                            Qe4 Rc8 Rc1 Qd6 Qg4 Rdc7 Qe6 
30   +1.01   06:19   2967M  Qe3 Qc5 Qxc5 bxc5 Rh1 a4 Kc2 Rgd8 Bd3 Kg8 Rdg1 Nd7 
                            Bc1 Kf8 Bf4 Ne5 Be2 f5 Bg3 Kf7 Bh4 Bxh4 Rxh4 Rg8 f4 
                            Nd7 exf5 exf5 Rd1 Ke7 Rh3 Nb6 
31   +1.01   07:03   3324M  Qe3 Qc5 Qxc5 bxc5 Rh1 a4 Kc2 Rgd8 Bd3 Kg8 Rdg1 Nd7 
                            Bc1 Kf8 Bf4 Ne5 Be2 f5 Bg3 Kf7 Bh4 Bxh4 Rxh4 Rg8 f4 
                            Nd7 exf5 exf5 Rd1 Ke7 Rh3 Nb6 
32   +1.21   11:20   5436M  Qe3 e5 Nd5 Bxd5 cxd5 Rgc8 Rc1 Qa7 Rc6 Rxc6 dxc6 Nxh5 
                            Bc4 Rf8 Rd1 Qb8 Bc1 Nf4 Qb3 Kg8 Bxf4 exf4 Qd3 Qc7 
                            Qd5 g6 a4 h5 Qd2 g5 Rg1 h4 Qxf4 
33   +1.21   12:28   5989M  Qe3 e5 Nd5 Bxd5 cxd5 Rgc8 Rc1 Qa7 Rc6 Rxc6 dxc6 Nxh5 
                            Bc4 Rf8 Rd1 Qb8 Bc1 Nf4 Qb3 Kg8 Bxf4 exf4 Qd3 Qc7 
                            Qd5 g6 a4 h5 Qd2 g5 Rg1 h4 Qxf4 
34   +1.13   28:38  13920M  Qe3 e5 Nd5 Bxd5 cxd5 Nd7 f4 Nc5 Bh3 Rad8 fxe5 dxe5 
                            Bf5 Bf6 Rc1 a4 Qg3 Qe7 Rc4 Qe8 Rb4 Nb7 Bg4 Nc5 Ka2 
                            Qe7 Bf5 Rde8 Qc3 Bg5 Rc4 Qd6 Qg3 Qf6 Rh1 Qe7 Rd1 Bf4 
                            Qg4 Qd6 
35   +1.13   30:11  14679M  Qe3 e5 Nd5 Bxd5 cxd5 Nd7 f4 Nc5 Bh3 Rad8 fxe5 dxe5 
                            Bf5 Bf6 Rc1 a4 Qg3 Qe7 Rc4 Qe8 Rb4 Nb7 Bg4 Nc5 Ka2 
                            Qe7 Bf5 Rde8 Qc3 Bg5 Rc4 Qd6 Qg3 Qf6 Rh1 Qe7 Rd1 Bf4 
                            Qg4 Qd6 
36   +1.13   35:32  17261M  Qe3 e5 Nd5 Bxd5 cxd5 Nd7 f4 Nc5 Bh3 Rad8 fxe5 dxe5 
                            Bf5 Bf6 Rc1 a4 Qg3 Qe7 Rc4 Qe8 Rb4 Nb7 Bg4 Nc5 Ka2 
                            Qe7 Bf5 Rde8 Qc3 Bg5 Rc4 Qd6 Qg3 Qf6 Rh1 Qe7 Rd1 Bf4 
                            Qg4 Qd6 Rg1 Rd8 

Nodes: 26208764332
Nodes/second: 8084862
Best move: Qe3
Ponder move: Bd8
Top

Return to “Computer Chess Club: General Topics”