The Bryntse Gambit

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

Moderators: bob, hgm, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
Post Reply
User avatar
AdminX
Posts: 5182
Joined: Mon Mar 13, 2006 1:34 pm
Location: Acworth, GA
Contact:

The Bryntse Gambit

Post by AdminX » Sat May 11, 2019 6:44 am

There is a nice article by GM Speelman posted on Chessbase about this line.

https://en.chessbase.com/post/speelman-agony-97
GM Speelman on Chessbase wrote: "It is a fantastic anti-computer variation, because computers can never understand White's compensation. White gets ongoing pressure that typically lasts 30, 40, 50 moves -- beyond any computer's threshold."
I decided to see what Leela thought about it. Here is it's eval.


Lc0 v0.22.0-Dev-JH.T8.610 wrote:
6.Bxf7+ Kd7 7.Qxg4+ Nxg4 8.Be6+ Ke8 9.Bf7+ Kd7 10.Be6+ Kc6 11.Bxg4 e5 12.Nf7 Qe8 13.Nxe5+ Kc7 14.Nc3 Bd6 15.0-0 h5 16.Bh3 g5 17.Bf5 Rf8 18.Bg6 Qe6 19.Nb5+ Kd8 20.Nf7+ Rxf7 21.f5 Qf6 22.Bxf7 Bf4 23.Be6 Nc6 24.g3 Bxg3 25.hxg3 Qe5 26.Kf2 h4 27.Rg1 Nd4 28.d3 Nxe6 29.dxe4 Kd7 30.Nc3 Kc6 31.fxe6 h3 32.Be3 Rf8+ 33.Ke2 Qxe6 34.Rae1 b5 35.Rh1 Rd8 36.Kf2 Qg4 37.Ne2 Qxe4 38.Rxh3 Rf8+ 39.Nf4 Qxc2+ 40.Re2 Qg6 41.a3 gxf4 42.Bxf4 a5 43.Rh1 b4 44.a4 Rf7 45.Rhe1 Qd3 46.Re6+ Kb7 47.R6e5 Qd4+ 48.Kf3 Qxb2 49.Rxc5 Qb3+ 50.Kg2 Qa2+ 51.Kf3 Qxa4 52.Ree5 Qd1+ 53.Kg2 b3 54.Rb5+ Kc8

Black is slightly better: =/+ (-0.63) Depth: 67/125 07:21:28 208MN, tb=88945


"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers

jp
Posts: 835
Joined: Mon Apr 23, 2018 5:54 am

Re: The Bryntse Gambit

Post by jp » Sat May 11, 2019 2:26 pm

Interesting! I wonder what SF's evaluation is after the same amount of time.

User avatar
AdminX
Posts: 5182
Joined: Mon Mar 13, 2006 1:34 pm
Location: Acworth, GA
Contact:

Re: The Bryntse Gambit

Post by AdminX » Sat May 11, 2019 11:33 pm

jp wrote:
Sat May 11, 2019 2:26 pm
Interesting! I wonder what SF's evaluation is after the same amount of time.
I did not have time to let Stockfish go to term, however here is what I was able to find.
Stockfish 10 wrote:
rn1qkb1r/pp2pppp/5n2/2p3N1/2B1pPb1/8/PPPP2PP/RNBQK2R w KQkq - 0 1

Analysis by Stockfish 10 64 BMI2:

6.Bxf7+ Kd7 7.Qxg4+ Nxg4 8.Be6+ Kc6 9.Bxg4 e5 10.Nf7 Qe8 11.Nxe5+ Kc7 12.Nc3 Bd6 13.0-0 h5 14.Bf5 Rf8 15.Bg6 Qe6 16.Nb5+ Kd8 17.Nxd6 Qxd6 18.d3 Qd4+ 19.Rf2 e3 20.Re2 Qxf4 21.Nf3 Qf6 22.Be4 Kc7 23.Bxe3 Nd7 24.Rae1 Rae8 25.c3 Kb8 26.Ng5 Qb6 27.Nh7 Rh8 28.Ng5 Nf6 29.b4 Nxe4 30.Nxe4 Ka8 31.bxc5 Qa6 32.Rd2 Qg6 33.h4 Rhf8 34.Bf2 Rf7 35.Kh2 Rfe7 36.Bg3 b6 37.cxb6 axb6 38.Rf2 Ka7 39.Rf3 Rd8 40.Ree3

Black is clearly better: -/+ (-1.49) Depth: 52/83 04:47:15 87959MN, tb=81741
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers

zullil
Posts: 5679
Joined: Mon Jan 08, 2007 11:31 pm
Location: PA USA
Full name: Louis Zulli

Re: The Bryntse Gambit

Post by zullil » Sun May 12, 2019 5:16 pm

AdminX wrote:
Sat May 11, 2019 11:33 pm
jp wrote:
Sat May 11, 2019 2:26 pm
Interesting! I wonder what SF's evaluation is after the same amount of time.
I did not have time to let Stockfish go to term, however here is what I was able to find.
Stockfish 10 wrote:
rn1qkb1r/pp2pppp/5n2/2p3N1/2B1pPb1/8/PPPP2PP/RNBQK2R w KQkq - 0 1

Analysis by Stockfish 10 64 BMI2:

6.Bxf7+ Kd7 7.Qxg4+ Nxg4 8.Be6+ Kc6 9.Bxg4 e5 10.Nf7 Qe8 11.Nxe5+ Kc7 12.Nc3 Bd6 13.0-0 h5 14.Bf5 Rf8 15.Bg6 Qe6 16.Nb5+ Kd8 17.Nxd6 Qxd6 18.d3 Qd4+ 19.Rf2 e3 20.Re2 Qxf4 21.Nf3 Qf6 22.Be4 Kc7 23.Bxe3 Nd7 24.Rae1 Rae8 25.c3 Kb8 26.Ng5 Qb6 27.Nh7 Rh8 28.Ng5 Nf6 29.b4 Nxe4 30.Nxe4 Ka8 31.bxc5 Qa6 32.Rd2 Qg6 33.h4 Rhf8 34.Bf2 Rf7 35.Kh2 Rfe7 36.Bg3 b6 37.cxb6 axb6 38.Rf2 Ka7 39.Rf3 Rd8 40.Ree3

Black is clearly better: -/+ (-1.49) Depth: 52/83 04:47:15 87959MN, tb=81741
A bit deeper, with Stockfish-dev:

-1.50 6. Qxg4 Nxg4 7. Bxf7+ Kd7 8. Be6+ Kc6 9. Bxg4 e5 10. Nf7 Qe8 11. Nxe5+ Kc7 12. Nc3 Bd6 13. O-O h5 14. Bf5 Rf8 15. Bg6 Qe6 16. Nb5+ Kd8 17. Nxd6 Qxd6 18. d3 Qd4+ 19. Rf2 e3 20. Re2 Qxf4 21. Nf3 Qf6 22. Be4 Kc7 23. Bxe3 Nd7 24. Rb1 Rae8 25. b4 b6 26. a3 Kc8 27. Rbe1 g6 28. Rb1 Re6 29. Bg5 Qc3 30. Rb3 Qa1+ 31. Re1 Qh8 32. Bb7+ Kxb7 33. Rxe6 Qa1+ 34. Re1 Qa2 35. Rc1 Rc8 36. Nd2 cxb4 37. Nc4 Rxc4 38. dxc4 bxa3 39. Be7 Ne5 40. Bxa3 Nxc4 41. Bc5 Qa5 42. Bf2 Qd2 43. Re1 Qxc2 44. Rbb1 Ne5 45. Rbc1 Qf5 46. Bg3 Nc6 47. Rc4 Qb5 48. Rce4 a5 49. Re6 Qf5 50. Bh4 (depth 60, 12:45:45)



User avatar
Nordlandia
Posts: 2471
Joined: Fri Sep 25, 2015 7:38 pm
Location: Sortland, Norway

Re: The Bryntse Gambit

Post by Nordlandia » Sun May 12, 2019 8:58 pm

Game just finished. For a top engine viewpoint, it's not enough compensation for white.


jp
Posts: 835
Joined: Mon Apr 23, 2018 5:54 am

Re: The Bryntse Gambit

Post by jp » Sun May 12, 2019 9:12 pm

Nordlandia wrote:
Sun May 12, 2019 8:58 pm
Game just finished. For a top engine viewpoint, it's not enough compensation for white.
Maybe SF white against Komodo black can do better?

User avatar
Nordlandia
Posts: 2471
Joined: Fri Sep 25, 2015 7:38 pm
Location: Sortland, Norway

Re: The Bryntse Gambit

Post by Nordlandia » Mon May 13, 2019 6:10 am

jp wrote:
Sun May 12, 2019 9:12 pm
Nordlandia wrote:
Sun May 12, 2019 8:58 pm
Game just finished. For a top engine viewpoint, it's not enough compensation for white.
Maybe SF white against Komodo black can do better?
I'll do it. Btw TC is 45 min + 30s increment. SF 10 won against SF Dev.


User avatar
Nordlandia
Posts: 2471
Joined: Fri Sep 25, 2015 7:38 pm
Location: Sortland, Norway

Re: The Bryntse Gambit

Post by Nordlandia » Mon May 13, 2019 9:00 am

SF Dev held against H6, as expected. Now i'll do SF Dev vs K13.


chrisw
Posts: 2186
Joined: Tue Apr 03, 2012 2:28 pm

Re: The Bryntse Gambit

Post by chrisw » Mon May 13, 2019 10:27 am

Wow! that's a fun gambit

User avatar
AdminX
Posts: 5182
Joined: Mon Mar 13, 2006 1:34 pm
Location: Acworth, GA
Contact:

Re: The Bryntse Gambit

Post by AdminX » Mon May 13, 2019 11:26 am

I just started a 2 LTC games in Shredder GUI using LC0 JH.T8.610 and Stockfish 10 with Ponder off and Hash of 16384 each. I will post the games when they are completed.
"Good decisions come from experience, and experience comes from bad decisions."
__________________________________________________________________
Ted Summers

Post Reply