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Old 2017-03-10, 05:22   #1
MooMoo2
 
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Default Engine-assisted game vs Stockfish, move 29 discussion

The most popular move on the move 28 poll was ...Rc2. Stockfish played 29. Bc4, and the FEN is:
5r1k/6bp/3p4/3Q1p2/1qB1pP2/1P6/2r3PP/3R1R1K b - - 2 29

Game so far: 1.e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Bxf6 gxf6 11. Nd5 f5 12. c3 Bg7 13. Bd3 Be6 14. Nc2 O-O 15. O-O fxe4 16. Bxe4 Rc8 17. a4 f5 18. axb5 axb5 19. Bf3 e4 20. Be2 Kh8 21. Qd2 Be5 22. f4 Bxd5 23. Qxd5 Qb6+ 24. Kh1 Bg7 25. Rad1 b4 26. Nxb4 Nxb4 27. cxb4 Qxb4 28. b3 Rc2 29. Bc4

Depth: 58 ply. Nodes searched: 699,065,743,522 (~699 G)
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Old 2017-03-10, 14:32   #2
WMHalsdorf
 
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Now we play 29...e3. The goal being getting a second Queen which can only be stopped by getting into a draw by repetition.
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Old 2017-03-10, 20:34   #3
gd_barnes
 
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Quote:
Originally Posted by WMHalsdorf View Post
Now we play 29...e3. The goal being getting a second Queen which can only be stopped by getting into a draw by repetition.
I think there is still danger in separating the pawns just yet.

After 29...e3 30. Qe6 Qb7 31. Bd5 Qa7 32. Rfe1, Komodo at 30-ply shows white with a 0.1 to 0.3 advantage.

I think that better is:

29...Bc3 30. h3 (effectively a waiting move) Qb6 (or any other waiting move like Qb8 or Ra2) 31. Qxd6 Qxd6 32. Rxd6 Re8 33. Rfd1 Rf2. Neither side can do much. White could also immediately play 30. Qxd6 but the line transposes to this mainline. In all lines white is effectively forced to make some progress to avoid repetition but they all lead to little.

Last fiddled with by gd_barnes on 2017-03-10 at 20:37
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Old 2017-03-12, 17:15   #4
The Carnivore
 
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dh1's engines all recommend Qc5 after 28. ... Rc2 29.Bc4:

http://www.mersenneforum.org/showpos...6&postcount=19
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Old 2017-03-13, 04:04   #5
gd_barnes
 
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Quote:
Originally Posted by The Carnivore View Post
dh1's engines all recommend Qc5 after 28. ... Rc2 29.Bc4:

http://www.mersenneforum.org/showpos...6&postcount=19
Komodo shows .00 with:

29...Qc5 30. Qe6 Bd4 31. Qe7 d5 32. Qxc5 Bxc5 33. Rxd5

I still like 29...Bc3 better but either way we give up a pawn yet Komodo quickly shows .00.

Perhaps dh1 can post his analysis for Bc3, Qh5, and e3.

Last fiddled with by gd_barnes on 2017-03-13 at 04:09
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Old 2017-03-13, 08:09   #6
dh1
 
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FEN is: 5r1k/6bp/3p4/3Q1p2/1qB1pP2/1P6/2r3PP/3R1R1K b - - 2 29

(negative worse for black) ...

Code:
==================
Komodo-10.3-64bit:
--------------six variations-------
 36    -0.33    29. ... h6 30.h3 Kh7 31.Rfe1 Rc3 32.Re2 h5 33.Qd2 d5 34.Bxd5 Qb8 35.Bc4 Kh6 36.Rf2 Qb6 37.Qe1 Qe3 38.Qxe3 Rxe3 39.Ra2 Rf6 40.Rd7 h4 41.Kh2 Rc3 42.Raa7 Rg3 43.b4 Rfg6 44.Ra2 Bf8 45.Rd5 Bxb4 46.Rxf5 e3 47.Re5 Bc3
 36    -0.29    29. ... e3 30.Qe6 Qb7 31.Bd5 Qa7 32.Rfe1 Rd2 33.Bf3 Bd4 34.b4 Kg7 35.Qxd6 Qb6 36.Qe7+ Rf7 37.Qg5+ Qg6 38.Qh4 Qf6 39.Qh5 Qg6 40.Qxg6+ hxg6 41.g3 Rd7 42.Rxd2 exd2 43.Rd1 Bc3 44.b5 Rd6 45.Rb1 Bd4 46.Kg2 Kf6 47.Rb3 Bc5 48.Bd1 Ke6 49.Kf3 Kd7 50.Ke2 Kc7 51.Rd3 Rxd3 52.Kxd3 Kb6 53.Kxd2
 36    -0.12    29. ... Rb2 30.h3 Bc3 31.Kh2 Rc2 32.Qxd6 Qxd6 33.Rxd6 Bb4 34.Rb6 Bc3 35.Rd1 Bd2 36.Kg3 Be3 37.Rb7 Bf2+ 38.Kh2 Be3 39.Rf1 Rf6 40.Kh1 h5 41.Ra1 Rc1+ 42.Rxc1 Bxc1 43.Kg1 Bxf4 44.Kf2 h4 45.Rd7 Bh6 46.Rc7 Rd6 47.Rf7 Rd2+ 48.Be2 Bg7 49.Rxf5 Bd4+ 50.Ke1 Rb2 51.Rh5+ Kg7
 36    -0.07    29. ... Ra2 30.Rg1 Rf2 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.g4 fxg4 34.Rxg4 R2xf4 35.Rxf4 Rxf4 36.Re6 Bd4 37.Kg2 Kg7 38.Kg3 Be3 39.b4 Rf3+ 40.Kg4 Rf4+ 41.Kh3 Rf3+ 42.Kg2 Rf2+ 43.Kh1 Bf4 44.Rxe4 Rxh2+ 45.Kg1 Bd6 46.b5 h5 47.Be2 Kf6 48.b6 h4 49.Re8 h3 50.b7 Rg2+ 51.Kf1 Rg7 52.Bf3 h2 53.Rh8 Rg1+ 54.Kf2 Bg3+ 55.Ke3 Re1+
 36    -0.02    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Bb4 34.Qd5 Qa7 35.g4 Qc5 36.Qb7 d5 37.Bxd5 e3 38.Bc4 fxg4 39.Qe4 Qd6 40.h3 gxh3 41.Qxe3 Bd2 42.Qe5+ Qxe5 43.fxe5 Rxf1+ 44.Bxf1 Kg7 45.Bxh3 Bc3 46.e6 Kf6 47.Kg2 Bb4 48.Kf1 Ke5 49.Ke2 h5 50.Ke3 Be7 51.Kd3
 36     0.00    29. ... Qc5 30.Qe6 Bd4 31.Qe7 d5 32.Qxc5 Bxc5 33.Rxd5 Bb4 34.Re5 Bd6 35.Rb5 e3 36.Kg1 Ra8 37.Rd1 Raa2 38.Rxd6 Rxg2+ 39.Kh1 Rxh2+ 40.Kg1 Rhg2+ 41.Kh1 Rh2+

--------------four variations------
 43    -0.22    29. ... e3 30.Qe6 e2 31.Bxe2 Qe4 32.Qxe4 fxe4 33.Bh5 Rb2 34.Rxd6 Be5 35.Rd7 Rxf4 36.Rxf4 Bxf4 37.g3 Bg5 38.Rd5 h6 39.Re5 Rb1+ 40.Kg2 Rb2+ 41.Kh3 e3 42.Bf7 Kg7 43.Be6 Kf6 44.Re4 h5 45.b4 Kg6 46.Bd7 Rd2 47.Bc6 Rb2 48.b5 Kf5 49.Re8 Kg6 50.Re6+ Kf5 51.Re4 Rxb5 52.Rxe3 Bxe3 53.Bxb5 Bd4 54.Bd3+ Kg5 55.Kg2 h4 56.Kf3 hxg3
 43    -0.20    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Bb4 34.g4 Qa8 35.h3 Bc3 36.Qxd6 Rd8 37.Qc7 Rd2 38.Be2 Bd4 39.Qc4 fxg4 40.hxg4 Qd8 41.g5 Qd7 42.f5 Qd8 43.Rf4 Qxg5 44.Qc8+ Qg8 45.Qxg8+ Kxg8 46.Rxe4 Kg7 47.Re6 Rb2 48.Bc4 Bf6 49.Kg1 h6 50.Kf1 h5 51.Rd6 h4 52.Kg1 h3 53.Re6 Rg2+ 54.Kh1 Rd2 55.b4 Rc2 56.Bf1 Rb2 57.b5
 43    -0.18    29. ... Ra2 30.h3 Bc3 31.Kh2 Rc2 32.h4 Qc5 33.Qxd6 Qxd6 34.Rxd6 Re8 35.Rfd1 Bb4 36.Rd8 Rxd8 37.Rxd8+ Kg7 38.h5 Kh6 39.Kh3 Kxh5 40.Be6 Rf2 41.Rd4 Be1 42.Bxf5 Rxf4 43.Rxe4 Rxe4 44.Bxe4 h6 45.Bd5 Kg5 46.Bf3 Bc3 47.Be4 Kf4 48.Bc6 Be1 49.Bf3 Kg5 50.Be2 Kf5 51.Bd3+ Kg5 52.Bb5 Kf4 53.Bc4 Kg5 54.g3 h5 55.Bd3
 43     0.00    29. ... Qc5 30.Qe6 Bd4 31.Qe7 d5 32.Qxc5 Bxc5 33.Rxd5 Bb4 34.g4 fxg4 35.Re5 Rf6 36.Re8+ Bf8 37.f5 Rb2 38.b4 Rxb4 39.Rxe4 h5 40.h3 gxh3 41.Kh2 Kg7 42.Kxh3 Rb2 43.Rg1+ Kh7 44.Re6 Rxe6 45.Bxe6 Be7 46.Bf7 Rf2 47.Bxh5 Kh6 48.Bg6 Rf4 49.Rg2 Bh4 50.Kh2 Bf2 51.Kh1 Bd4 52.Kh2 Bf2

==========
Houdini 5:
 40/89    -0.45    29. ... Ra2 30.h3 Qb8 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Ra6 Rxf4 35.Rd7 Rh4 36.Kh2 Rh5 37.Raa7 Rh6 38.Rab7 f4 39.b4 Bf6 40.Bd5 e3 41.Bf3 Rc8 42.b5 Be5 43.Re7 Bd6 44.Re4 Bf8 45.Rd7 Rb6 46.Re5 Rh6 47.Bg4 Ra8 48.Re4 Rf6 49.Rb7 Bc5 50.Bf3 Bd6 51.Rd7
 40/89    -0.37    29. ... e3 30.Qe6 e2 31.Bxe2 Qe4 32.Qxe4 fxe4 33.Bh5 Bc3 34.Rxd6 e3 35.Rd3 Rf2 36.Rfd1 Bd2 37.Kg1 R2xf4 38.Bf3 R4f5 39.Rd7 Ra5 40.Re7 Ra2 41.Rb1 Bb4 42.Re4 Bc5 43.b4 Rb8 44.h3 e2+ 45.Kh1 Rxb4 46.Rbxb4 Bxb4 47.Rxe2 Rxe2 48.Bxe2 Kg7 49.Bd3 Bd6 50.Kg1 Bg3 51.Kf1 Kf6 52.Ke2 h5
 40/89    -0.37    29. ... Rb2 30.h3 Ra2 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rd7 Bb4 34.Kh2 Re8 35.Rfd1 e3 36.Rd8 Rxd8 37.Rxd8+ Kg7 38.Re8 Bd6 39.Kg3 Rf2 40.Rxe3 Rxf4 41.Bd3 h5 42.Rf3 Rb4+ 43.Kf2 Rxb3 44.Bxf5 Rb2+ 45.Kf1 h4 46.Rf2 Rb4 47.Ke2 Rb2+ 48.Kf3 Rxf2+ 49.Kxf2 Kf6 50.Be4 Ke5 51.Kf3 Kd4 52.Bh7 Bb4 53.Bg8 Bd6 54.Bf7 Bg3 55.Bg6 Ke5 56.Bc2 Kd4 57.Bf5 Ke5 58.Kg4 Bf2
 40/89    -0.36    29. ... Qb6 30.Qe6 Qb8 31.h3 Ra2 32.Qxd6 Qxd6 33.Rxd6 Bc3 34.Rfd1 Rf2 35.Ra6 Rxf4 36.Rd7 Rh4 37.Kh2 Rh5 38.Raa7 Rh6 39.Rab7 f4 40.b4 Bf6 41.Bd5 e3 42.Bf3 Rc8 43.b5 Be5 44.Re7 Bd6 45.Re4 Bf8 46.Rd7 Rb6 47.Re5 Rh6 48.Bg4 Ra8 49.Rf5 Bd6 50.Rd5 e2 51.Bxe2 f3+ 52.R5xd6 fxe2 53.Rd8+ Rxd8 54.Rxd8+ Kg7
 40/89    -0.15    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Qd8 34.Qd5 Bc3 35.Rd1 Bb4 36.g4 Qf6 37.gxf5 Qxf5 38.Qd4+ Qf6 39.Qxe4 Qxf4 40.Qg2 Qf2 41.Rf1 Qxg2+ 42.Kxg2 Rxf1 43.Kxf1 Kg7 44.Ke2 Kf6 45.Kd3 Ke5 46.Bg8 h5 47.Kc4 Bd2 48.h3 h4 49.b4 d5+ 50.Kc5 Be3+ 51.Kc6 d4 52.Bh7 Kf4 53.b5 Kg3 54.b6 Kxh3 55.b7 Bf4 56.Kd5 d3 57.Bxd3 Kg3
 40/89     0.00    29. ... Qc5 30.Qe6 Bd4 31.Qd7 Ra2 32.Qe6 Rc2
...
 45/95    -0.33    29. ... Ra2 30.h3 Rc2 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Ra6 Rxf4 35.Rd7 Rh4 36.Re6 Bf6 37.b4 e3 38.Bd3 Rd4 39.Rxf6 Rxd7 40.Rxf8+ Kg7 41.Rxf5 Rxd3 42.Kh2 Rb3 43.b5 Kg6 44.Re5 Kf6 45.Re8 Rxb5 46.Rxe3 Kg5 47.Kg3 h5 48.h4+ Kf6 49.Kh3 Kg6 50.Re6+ Kg7 51.g3 Rb2 52.Rc6 Rb1 53.Rd6 Rh1+ 54.Kg2 Rb1 55.Rd5 Rb2+ 56.Kh3 Kh6 57.Rd3 Kg7 58.Rd7+ Kh6
 45/95    -0.33    29. ... Bb2 30.h3 Bg7 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Ra6 Rxf4 35.Rd7 Rh4 36.Re6 Bf6 37.b4 e3 38.Bd3 Rd4 39.Rxf6 Rxd7 40.Rxf8+ Kg7 41.Rxf5 Rxd3 42.Kh2 Rb3 43.b5 Kg6 44.Re5 Kf6 45.Re8 Rxb5 46.Rxe3 Kg5 47.Kg3 h5 48.h4+ Kf6 49.Kh3 Kg6 50.Re6+ Kg7 51.g3 Rb2 52.Rc6 Rb5 53.Rd6 Rb1 54.Rd5 Kg6 55.Rc5 Rb4 56.Re5 Rb3 57.Re2 Rb5 58.Rf2 Rb4
 45/95    -0.33    29. ... Rb2 30.h3 Rc2 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Ra6 Rxf4 35.Rd7 Rh4 36.Re6 Bf6 37.b4 e3 38.Bd3 Rd4 39.Rxf6 Rxd7 40.Rxf8+ Kg7 41.Rxf5 Rxd3 42.Kh2 Rb3 43.b5 Kg6 44.Re5 Kf6 45.Re8 Rxb5 46.Rxe3 Kg5 47.Kg3 h5 48.h4+ Kf6 49.Kh3 Kg6 50.Re6+ Kg7 51.g3 Rb2 52.Rc6 Rb5 53.Rd6 Rb4 54.Rd5 Kg6 55.Ra5 Kh6 56.Rc5 Rb2 57.Rf5 Rb3 58.Rf6+ Kh7
 45/95    -0.28    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Bb4 34.g4 Qa8 35.h3 e3+ 36.Kh2 Qe4 37.gxf5 Qxe6 38.fxe6 Kg7 39.Kg2 d5 40.Bd3 Kf6 41.Kf3 Kxe6 42.Kxe3 Rb8 43.Rf3 Rb7 44.Kf2 h5 45.Be2 Bd6 46.Rd3 Bxf4 47.Rxd5 Rxb3 48.Rxh5 Kf6 49.Bd1 Rc3 50.Bg4 Bg5 51.Kg2 Rc2+ 52.Kf3 Rc3+ 53.Ke2 Rb3 54.Rh7 Ke5 55.Ra7 Kf4 56.Kd2 Bf6 57.Rf7 Kg5 58.Be6
 45/95    -0.23    29. ... e3 30.Qe6 e2 31.Bxe2 Qe4 32.Qxe4 fxe4 33.Bh5 Bc3 34.Rxd6 e3 35.Rd3 Rf2 36.Be2 Rxe2 37.Rxc3 Rxf4 38.Rg1 Kg7 39.h3 Rb4 40.Ra1 Rb6 41.Rc7+ Kg6 42.Rc4 h5 43.b4 Re6 44.b5 Rb2 45.Rc5 e2 46.Re1 h4 47.Kg1 Rb6 48.Rc6+ Rxc6 49.bxc6 Rc2 50.Kh2 Rxc6 51.Rxe2 Rc3 52.Re6+ Kg5 53.Re5+ Kg6 54.Re1 Rg3 55.Re6+ Kg5 56.Kg1 Rc3 57.Re5+ Kg6 58.Re4 Rc1+
 45/95     0.00    29. ... Qc5 30.Qe6 Bd4 31.Qd7 Ra2 32.Qe6 Rc2
...
 50/104    -0.46    29. ... Ra2 30.h3 Qb6 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Kg1 e3 35.Re6 Rxf4 36.Rf1 Rxf1+ 37.Kxf1 f4 38.Ke2 Rg8 39.Re4 Rxg2+ 40.Kd3 Bb4 41.Re8+ Kg7 42.Rg8+ Kh6 43.Rxg2 f3 44.Rg1 e2 45.Ke3 e1Q+ 46.Rxe1 Bxe1 47.Kxf3 Kg5 48.Ke3 Kh4 49.Ke2 Bb4 50.Be6 Kg5 51.Kd3 Kf6 52.Bd7 Be1 53.Kc2 Bb4 54.Bg4 Ke5 55.Kd3 Bd6 56.Bh5 Kf5 57.Kc4 Kg5 58.Bg4 Kh4
 50/104    -0.46    29. ... Bb2 30.h3 Qc5 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Kg1 e3 35.Re6 Rxf4 36.Rf1 Rxf1+ 37.Kxf1 f4 38.Ke2 Rg8 39.Re4 Rxg2+ 40.Kd3 Bb4 41.Re8+ Kg7 42.Rg8+ Kh6 43.Rxg2 f3 44.Rg1 e2 45.Ke3 e1Q+ 46.Rxe1 Bxe1 47.Kxf3 Kg5 48.Bb5 Kh4 49.Bd7 Bb4 50.Ke4 Bc5 51.Be6 Bb4 52.Bf5 Kg3 53.Bc8 Kh4 54.Be6 Kg5 55.Bf5 Kh4 56.Kd3 h5 57.Kc4 Bd6 58.Kd5 Bb4
 50/104    -0.46    29. ... Rb2 30.h3 Ra2 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Kg1 Rxf4 35.Re6 e3 36.Rf1 Rxf1+ 37.Kxf1 f4 38.Ke2 Rg8 39.Re4 Rxg2+ 40.Kd3 Bb4 41.Re8+ Kg7 42.Rg8+ Kh6 43.Rxg2 f3 44.Rg1 e2 45.Ke3 e1Q+ 46.Rxe1 Bxe1 47.Kxf3 Kg5 48.Bb5 Kh4 49.Bd7 Bb4 50.Ke4 Be7 51.Kd5 Bb4 52.Be6 Kg5 53.Kc4 Bd6 54.Bd7 Kh4 55.Bc8 Ba3 56.Be6 Bd6 57.Kb5 h6 58.Bd7 Be7
 50/104    -0.14    29. ... e3 30.Rde1 Qb6 31.Re2 Rxe2 32.Bxe2 Qd4 33.Qxd4 Bxd4 34.g3 Ra8 35.Kg2 Kg7 36.b4 Ra2 37.Kf3 Rb2 38.b5 Ra2 39.Rd1 Bc5 40.h3 h5 41.Re1 Kf6 42.Rb1 Bb6 43.Rc1 Bc5 44.Rg1 Bd4 45.g4 fxg4+ 46.hxg4 hxg4+ 47.Rxg4 Rb2 48.Rg8 Bc5 49.Rg5 Ke6 50.Rg6+ Kd5 51.Rh6 Rb4 52.Rh1 Ke6 53.Rh2 Kd5 54.Rh4 Rb2 55.Rh8 Ke6 56.Rh6+ Kd5 57.Rg6 Rb4 58.Rg5+ Ke6
 50/104    -0.10    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Bb4 34.g4 Qa8 35.h3 Bc3 36.Qxd6 Rd8 37.Qc7 Rd2 38.Be2 Bd4 39.Qc4 fxg4 40.hxg4 Qd8 41.g5 Qd7 42.f5 Qd8 43.Rf4 Qxg5 44.Qc8+ Qg8 45.Qxg8+ Kxg8 46.Rxe4 Kg7 47.Re6 Rb2 48.Bc4 Rf2 49.Rd6 Be5 50.Rd7+ Kf6 51.Rxh7 Kxf5 52.Rf7+ Bf6 53.Kg1 Rb2 54.Kf1 Ke5 55.Ke1 Bg5 56.Rd7 Ke4 57.Kd1 Bf4 58.Bf7 Rh2
 50/104     0.00    29. ... Qc5 30.Qe6 Bd4 31.Qd7 Ra2 32.Qe6 Rc2

===========================
EngineDeepShredder13UCIx64:
 50/84    -0.11    29. ... Ra2 30.h3 Rc2 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Rf2 34.Rc6 Ra8 35.Kg1 Rc2 36.Bb5 Rd2 37.Rxd2 Bxd2 38.Kf2 Bxf4 39.Rc5 Ra2+ 40.Be2 Kg7 41.Rxf5 Bb8 42.b4 Rb2 43.b5 Ba7+ 44.Ke1 e3 45.Bc4 Bb6 46.g3 Rb1+ 47.Ke2 Rb2+ 48.Kd1 Rd2+ 49.Ke1 Rb2 50.Re5 Rc2 51.Re7+ Kf8 52.Rf7+ Ke8 53.Rf4 Ke7 54.Kf1 Rf2+ 55.Rxf2 exf2 56.g4 h6 57.h4 Kf6 58.Bd3 Bc5 59.Ke2 Bd4
 50/84    -0.05    29. ... e3 30.Qe6 e2 31.Bxe2 Qe4 32.Qxe4 fxe4 33.Bh5 Rb2 34.Rxd6 Be5 35.Re6 Rxf4 36.Rd1 Bf6 37.h3 Kg7 38.Be8 Bg5 39.Bc6 Rxb3 40.Bxe4 Re3 41.Bd5 Rxe6 42.Bxe6 h5 43.g3 Re4 44.Bf5 Re3 45.Kg2 Kf6 46.Bc8 Re2+ 47.Kh1 Re3 48.Rf1+ Kg7 49.Kg2 Re2+ 50.Kf3 Re3+ 51.Kf2 Rc3 52.Bf5 Bf6 53.Rd1 Be5 54.Bd3 Ra3 55.Kf3 Kh6 56.g4 hxg4+ 57.Kxg4 Bf6
 50/84    -0.04    29. ... Bb2 30.h3 Qc5 31.Qxd6 Qxd6 32.Rxd6 Bc3 33.Rfd1 Re8 34.g4 e3 35.Rd8 Rxd8 36.Rxd8+ Kg7 37.Rg8+ Kf6 38.Re8 fxg4 39.hxg4 Bd4 40.g5+ Kg6 41.Bd3+ Kf7 42.Bxc2 Kxe8 43.Bd3 e2 44.Bxe2 Be3 45.f5 Bxg5 46.b4 Ke7 47.Bc4 Kd6 48.Kh2 Ke5 49.Be6 Kf4 50.b5 Bd8 51.Kh3 h5 52.Bd7 Kg5 53.Kg2 Bb6 54.Be6 Kf6 55.Kh2 Kg5 56.Bd7 Bd8 57.Kg3 Bc7+ 58.Kf3 Bd8 59.Be6 Bc7 60.Kg2 Bd8
 50/84    -0.02    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Bc3 34.g3 Bb4 35.g4 Qa8 36.h3 Bc3 37.Qxd6 Rd8 38.Qc7 Rd2 39.Be2 Bd4 40.Qc4 fxg4 41.hxg4 Qd8 42.g5 Qd7 43.f5 Qd8 44.Rf4 Qxg5 45.Qc8+ Qg8 46.Qxg8+ Kxg8 47.Rxe4 Kg7 48.Re6 Bc3 49.Bc4 Rf2 50.Kg1 Rxf5 51.Re7+ Kg6 52.Bd3 Kf6 53.Rxh7 Rf4 54.Kh2 Ke5 55.Bc4 Kd4 56.Kg3 Ke3 57.Kg2 Rf2+ 58.Kg1 Rf4
 50/80     0.00    29. ... Qc5 30.Qxd6 Qxd6 31.Rxd6 Bc3 32.Rfd1 Re8 33.g3 e3 34.Rd8 Rxd8 35.Rxd8+ Kg7 36.Re8 Bd4 37.Bd3 Rd2 38.Bc4 Rb2 39.Rd8 Bc5 40.Rd5 Bb6 41.Rd7+ Kh8 42.Rd6 Bc5 43.Rd5 Bb6 44.Re5 Bd4 45.Re7 Bc5 46.Re5 Bd4

=========================
Deep Rybka 4.1 SSE42 x64:
 31    -0.29    29. ... Ra2 30.h3 Bc3 31.Kh2 Qc5 32.Qxd6 Qxd6 33.Rxd6 Re8 34.Rfd1 Rf2 35.Kg3 e3 36.Rd8 Rxd8 37.Rxd8+ Kg7 38.Re8 Be1 39.Kh4 Rxg2+ 40.Kh5 Rg3 41.h4 Rh3 42.Kg5 Bxh4+ 43.Kxf5 Be1 44.Re7+ Kf8
 31    -0.28    29. ... Bc3 30.Qe6 Qb8 31.Rc1 Rxc1 32.Rxc1 Bd2 33.Rf1 Bb4 34.g4 Qa8 35.h3 e3+ 36.Kh2 Qe4 37.gxf5 Qxe6 38.fxe6 d5 39.Bd3 Kg7 40.f5 Kf6 41.Kg3 Ra8 42.Kf3 d4 43.Rc1 Ra2 44.Rc2 Rxc2
 31    -0.25    29. ... e3 30.Rde1 Qb6 31.Re2 Rxe2 32.Bxe2 Qb4 33.g3 Bd4 34.Kg2 Bc5 35.Rc1 Qd2 36.Qc4 Kg7 37.Rc2 Qa5 38.Qd5 Qa8 39.Bf3 Qa1 40.Qd3 Qa5 41.Bd5 Kg6 42.Re2 Qa1 43.Rc2 Rb8
 31    -0.14    29. ... Qc5 30.Qe6 Bd4 31.Rc1 Rd2 32.Bd5 Qb5 33.Qxd6 Bg7 34.Bc4 Rxd6 35.Bxb5 Rfd8 36.Rfe1 Rd5 37.Be2 Rd2 38.Kg1 Rb2 39.Kf1 Bf8 40.Red1 Rxd1+ 41.Rxd1 Bc5 42.Rd5 Be3 43.g3 Rxb3 44.Bb5 Rb2
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Old 2017-03-13, 08:47   #7
gd_barnes
 
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That's pretty convincing for Qc5.
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Old 2017-03-13, 14:24   #8
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I'm convinced.
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