mmt Vs. Ovyron (G4 D5 BG2)

[Ovyron]

1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. Qb3 e6 5. Qxb7 Nd7 6. Nc3 Ne7 7. cxd5 exd5 8. d4 Rb8 9. Qa6 Rb6 10. Qd3 Ng6 11. h3 Be6 12. Nf3 Bd6 13. h4 h5 14. b3 Nf6 15. Bg5 O-O 16. e3 Re8 17. Kf1 Bg4 18. Ne1 Bb4 19. Na4 Rb8 20. Nc2 Be7

[d]1r1qr1k1/p3bpp1/2p2nn1/3p2Bp/N2P2bP/1P1QP3/P1N2PB1/R4K1R w - -

[zullil]

1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. Qb3 e6 5. Qxb7 Nd7 6. Nc3 Ne7 7. cxd5 exd5 8. d4 Rb8 9. Qa6 Rb6 10. Qd3 Ng6 11. h3 Be6 12. Nf3 Bd6 13. h4 h5 14. b3 Nf6 15. Bg5 O-O 16. e3 Re8 17. Kf1 Bg4 18. Ne1 Bb4 19. Na4 Rb8 20. Nc2 Be7

[d]1r1qr1k1/p3bpp1/2p2nn1/3p2Bp/N2P2bP/1P1QP3/P1N2PB1/R4K1R w - -

Komodo at depth 53 had 20...Be7 (-1.21).

[mmt]

1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. Qb3 e6 5. Qxb7 Nd7 6. Nc3 Ne7 7. cxd5 exd5 8. d4 Rb8 9. Qa6 Rb6 10. Qd3 Ng6 11. h3 Be6 12. Nf3 Bd6 13. h4 h5 14. b3 Nf6 15. Bg5 O-O 16. e3 Re8 17. Kf1 Bg4 18. Ne1 Bb4 19. Na4 Rb8 20. Nc2 Be7 21. f3

[d]1r1qr1k1/p3bpp1/2p2nn1/3p2Bp/N2P2bP/1P1QPP2/P1N3B1/R4K1R b - - 0 1

[Ovyron]

Two days ago I had Bc8 as best, right now it's Be6. Is this for real or am I being led astray? Since these variations appeared in my radar as a possible game continuation, I've based my decisions on playing Bc8 here, so Be6 needs to really prove itself to make me switch (other than higher score, which it already achieved.)

Am I changing horses mid-race?

[Ovyron]

So apparently after Bc8 white has 22.Qd2! but after Be6 22.Ba3 is best. The thing is that with more depth Qd2 looks worse than 22.Ba3 (so it may be transposing if white plays 22.Ba3 anyway, making Bc8/Be6 equal.) My question is if I play Bc8 tempting white to play Qd2 with the hopes that black plays it and I'm better than in the 22.Ba3 line. But now I have to make sure 22.Qd2 isn't actually better, so I could just play Be6 and save the trouble because I already know how good 22.Ba3 is (for black).

That's my dilemma (which doesn't matter if mmt intends to play 22.Ba3 regardless.) I guess it doesn't make sense because if 22.Ba3 is a draw I can't win this game whatever I move, but if 22.Ba3 loses then my move must be 21...Bc8, because 22.Qd2 could draw, so I shouldn't allow it. But if Ba3 draws and Qd2 loses then Bc8 hoping that mmt blunders with Qd2 is my only chance to win.

21...Be6 is the game theoretical move and yet I'm here analyzing and wondering what I'll move. I just hope 22.Ba3 loses and 22.Qd2 loses even faster...

[zullil]

So apparently after Bc8 white has 22.Qd2! but after Be6 22.Ba3 is best. The thing is that with more depth Qd2 looks worse than 22.Ba3 (so it may be transposing if white plays 22.Ba3 anyway, making Bc8/Be6 equal.) My question is if I play Bc8 tempting white to play Qd2 with the hopes that black plays it and I'm better than in the 22.Ba3 line. But now I have to make sure 22.Qd2 isn't actually better, so I could just play Be6 and save the trouble because I already know how good 22.Ba3 is (for black).

That's my dilemma (which doesn't matter if mmt intends to play 22.Ba3 regardless.) I guess it doesn't make sense because if 22.Ba3 is a draw I can't win this game whatever I move, but if 22.Ba3 loses then my move must be 21...Bc8, because 22.Qd2 could draw, so I shouldn't allow it. But if Ba3 draws and Qd2 loses then Bc8 hoping that mmt blunders with Qd2 is my only chance to win.

21...Be6 is the game theoretical move and yet I'm here analyzing and wondering what I'll move. I just hope 22.Ba3 loses and 22.Qd2 loses even faster...

You mean 22. Bh3.

Maybe take a break from posting?

[Ovyron]

You mean 22. Bh3.

Heh, so used to the left-most column being the a file when I'm trying to win games

1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. Qb3 e6 5. Qxb7 Nd7 6. Nc3 Ne7 7. cxd5 exd5 8. d4 Rb8 9. Qa6 Rb6 10. Qd3 Ng6 11. h3 Be6 12. Nf3 Bd6 13. h4 h5 14. b3 Nf6 15. Bg5 O-O 16. e3 Re8 17. Kf1 Bg4 18. Ne1 Bb4 19. Na4 Rb8 20. Nc2 Be7 21. f3 Be6

[d]1r1qr1k1/p3bpp1/2p1bnn1/3p2Bp/N2P3P/1P1QPP2/P1N3B1/R4K1R w - -

[zullil]

You mean 22. Bh3.

Heh, so used to the left-most column being the a file when I'm trying to win games

1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. Qb3 e6 5. Qxb7 Nd7 6. Nc3 Ne7 7. cxd5 exd5 8. d4 Rb8 9. Qa6 Rb6 10. Qd3 Ng6 11. h3 Be6 12. Nf3 Bd6 13. h4 h5 14. b3 Nf6 15. Bg5 O-O 16. e3 Re8 17. Kf1 Bg4 18. Ne1 Bb4 19. Na4 Rb8 20. Nc2 Be7 21. f3 Be6

[d]1r1qr1k1/p3bpp1/2p1bnn1/3p2Bp/N2P3P/1P1QPP2/P1N3B1/R4K1R w - -

Komodo at depth 50 had 21...Be6 (-1.27).

[Zenmastur]

You mean 22. Bh3.

Heh, so used to the left-most column being the a file when I'm trying to win games

1. g4 d5 2. Bg2 Bxg4 3. c4 c6 4. Qb3 e6 5. Qxb7 Nd7 6. Nc3 Ne7 7. cxd5 exd5 8. d4 Rb8 9. Qa6 Rb6 10. Qd3 Ng6 11. h3 Be6 12. Nf3 Bd6 13. h4 h5 14. b3 Nf6 15. Bg5 O-O 16. e3 Re8 17. Kf1 Bg4 18. Ne1 Bb4 19. Na4 Rb8 20. Nc2 Be7 21. f3 Be6

[d]1r1qr1k1/p3bpp1/2p1bnn1/3p2Bp/N2P3P/1P1QPP2/P1N3B1/R4K1R w - -

Komodo at depth 50 had 21...Be6 (-1.27).

SF with multi-PV=2 had:
21. ... Bc8 @ -2.16 @ depth 60
21. ... Be6 @ -1.95 @ depth 59

Looks like a few inaccuracies have been made.

Regards,

Zenmastur

[SheikhYerbouti]

SF with multi-PV=2 had:
21. ... Bc8 @ -2.16 @ depth 60
21. ... Be6 @ -1.95 @ depth 59

Looks like a few inaccuracies have been made.

Regards,

Zenmastur

Maybe oxyron's fabulous machine can carry greater ply depths than 60 But to the naked eye Bc8 looks the better move