TCEC 10: Fantastic Fizbo move

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Jeroen
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TCEC 10: Fantastic Fizbo move

Post by Jeroen » Sat Nov 04, 2017 4:50 am

[d]r2q1rk1/1pp2pP1/3p2p1/p1n3B1/2PN2b1/2N5/PP1nB3/R2K3R w - - 0 19

This position is from Fizbo-Bobcat, TCEC 10 stage 1, round 20.

After a very wild game Bobcat has just captured white's queen by 18... Nxd2, with lots of other pieces hanging.

Try to guess what amazing move Fizbo played here.

sovaz1997
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Re: TCEC 10: Fantastic Fizbo move

Post by sovaz1997 » Sat Nov 04, 2017 8:36 am

My chess program does the same move)

Jouni
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Re: TCEC 10: Fantastic Fizbo move

Post by Jouni » Sat Nov 04, 2017 9:48 am

A lot of winning moves, Fizbo's was not the best. No wonder it don't qualify to 2. stage.

Analysis by Houdini 6 x64-pext Tac:

1. +- (1.76): 19.gxf8Q+ Qxf8 20.Bf6 Bh5 21.Kxd2 Re8 22.Bxh5 Qh6+ 23.Kc2 gxh5 24.Rag1+ Kf8 25.Nd5 Qh7+ 26.Kc1 Ne4 27.Bg7+ Qxg7 28.Rxg7 Kxg7 29.Nf5+ Kg6 30.Nfe7+ Kg7 31.Rg1+ Kh7 32.Rf1 c6 33.Rxf7+ Kh6 34.Nc7 Rh8 35.Ne6 Rh7 36.Nf5+ Kg6 37.Rxh7 Kxh7 38.Nf4 h4 39.Nxh4 Kg7 40.Kc2 Kf6 41.Kd3 Ng3 42.Nfg2 Kg5 43.Nf3+ Kg4 44.Nd4
2. +- (1.75): 19.gxf8R+ Qxf8
3. +/- (1.43): 19.Nf5 Bxe2+ 20.Nxe2 f6 21.Rh8+ Kf7 22.Rxf8+ Qxf8 23.gxf8R+ Kxf8 24.Bxd2 gxf5 25.Kc2 Re8 26.Ng3 Kf7 27.Rh1 a4 28.Rh5 Kg6 29.Rxf5 Ne4 30.Rf3 Nxd2 31.Kxd2 Re5 32.Ne2 f5 33.Nc3 c6 34.Nxa4 Kg5 35.Nc3 f4 36.Ne2 Re4 37.Kd3
Jouni

Guenther
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Re: TCEC 10: Fantastic Fizbo move

Post by Guenther » Sat Nov 04, 2017 10:24 am

Jeroen wrote:[d]r2q1rk1/1pp2pP1/3p2p1/p1n3B1/2PN2b1/2N5/PP1nB3/R2K3R w - - 0 19

This position is from Fizbo-Bobcat, TCEC 10 stage 1, round 20.

After a very wild game Bobcat has just captured white's queen by 18... Nxd2, with lots of other pieces hanging.

Try to guess what amazing move Fizbo played here.

I agree that it (Nf5!) is a nice move from a Human point ofview. OTH the profane and simple gxf8Q+ is at least as good.

Code: Select all

1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. Nc3 e5 5. e4 exd4 6. Nxd4 g6 7. Be2 Bg7 8. Bg5 O-O 9. f3 Nc5 10. Qd2 a5 11. h4 h5 12. g4 hxg4 13. h5 gxf3 14. h6 f2+ 15. Kd1 Nfxe4 16. hxg7 f1=Q+ 17. Bxf1 Bg4+ 18. Be2 Nxd2 19. Nf5 Bxe2+ 20. Nxe2 f6 21. Rh8+ Kf7 22. gxf8=Q+ Qxf8 23. Rxf8+ Kxf8 24. Bxd2 gxf5 25. Kc2 Kf7 26. Rh1 Re8 27. Rh7+ Kg8 28. Rh2 Re4 29. b3 a4 30. Ng3 Re5 31. Bc3 Re3 32. Nxf5 Rf3 33. Ne7+ Kg7 34. b4 Ne4 35. Bd4 Ra3 36. Kb2 Rf3 37. b5 Ng5 38. Nd5 Ne6 39. Bxf6+ Rxf6 40. Nxf6 Kxf6 41. Ka3 b6 42. Rh6+ Ke7 43. Kxa4 Nf4 44. Kb4 Kd7 45. Kc3 Ne6 46. Rh8 Nc5 47. Rg8 Nb7 48. a4 Nc5 49. Ra8 Ke6 50. a5 bxa5 51. Rxa5 Ke7 52. Ra7 Kd8 53. Ra8+ Kd7 54. Kd4 Ke6 1-0
It seems for computer analysis the position already after 10. Qd2 is much more interesting.
I guess the played 10...a5? is already losing, because Black cannot afford a tempo waste on the Q-side after it castled (too?) early!?
IMHO there are only Qe8! and may be Bd7 to hold the game.

[d]r1bq1rk1/ppp2pbp/3p1np1/2n3B1/2PNP3/2N2P2/PP1QB1PP/R3K2R b KQ - 2 10

What scores do your engines give for 10...Qe8 or 10...Bd7 and do they avoid other moves?
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BrendanJNorman
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Re: TCEC 10: Fantastic Fizbo move

Post by BrendanJNorman » Sat Nov 04, 2017 10:51 am

Sometimes I wonder if some of you TC guys actually look at the positions (rather than just copying/pasting the FEN into your GUI and starting the engine). :roll:

Personally, I thought gxf8+ was simplest, yeah.

This was after gazing at the position for maybe 90 seconds.

P.S Not trying to sound condescending with my comment, but it perplexes me at times that the CHESSPLAYER in some people here is never sparked and curious to have a go and solving a position.

Being a data transmission person for Stockfish sounds a bit more boring to me.

Why not try to solve it yourself, and then check your solution with the engine?

Anyway, guys...have fun. Fizbo is indeed a great engine.

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