Search found 5109 matches

by zullil
Sat May 18, 2019 2:09 am
Forum: Computer Chess Club: General Topics
Topic: SF Dev need 150s (2.5 min) to find Qh6
Replies: 11
Views: 555

Re: SF Dev need 150s (2.5 min) to find Qh6

It appears SF misses some zugzwang. Sf-dev with Null Move Reduction disabled: info depth 41 seldepth 58 multipv 1 score cp 9 lowerbound nodes 1800916083 nps 35147369 hashfull 252 tbhits 0 time 51239 pv c1h6 info depth 40 currmove c1h6 currmovenumber 1 info depth 41 seldepth 58 multipv 1 score cp 19...
by zullil
Fri May 17, 2019 6:38 pm
Forum: Computer Chess Club: General Topics
Topic: SF Dev need 150s (2.5 min) to find Qh6
Replies: 11
Views: 555

Re: SF Dev need 150s (2.5 min) to find Qh6

It appears SF misses some zugzwang. Sf-dev with Null Move Reduction disabled: info depth 41 seldepth 58 multipv 1 score cp 9 lowerbound nodes 1800916083 nps 35147369 hashfull 252 tbhits 0 time 51239 pv c1h6 info depth 40 currmove c1h6 currmovenumber 1 info depth 41 seldepth 58 multipv 1 score cp 19...
by zullil
Thu May 16, 2019 12:07 pm
Forum: Computer Chess Club: General Topics
Topic: The Bryntse Gambit
Replies: 48
Views: 1651

Re: The Bryntse Gambit

e.g. Stockfish-dev prefers Bf5 to Bh3: -1.58 14. Bf5 Rf8 (depth 56, 8:04:21) -1.83 14. Bh3 Bxe5 (depth 56, 8:04:21) The difference in eval. here is pretty small too, even though it's gone to depth 56. Depth 60 now. I agree with Dann; this gambit is a loser for White. -1.83 14. Bf5 Rf8 15. Bg6 Qe6 1...
by zullil
Thu May 16, 2019 10:35 am
Forum: Computer Chess Club: General Topics
Topic: The Bryntse Gambit
Replies: 48
Views: 1651

Re: The Bryntse Gambit

e.g. Stockfish-dev prefers Bf5 to Bh3: -1.58 14. Bf5 Rf8 (depth 56, 8:04:21) -1.83 14. Bh3 Bxe5 (depth 56, 8:04:21) The difference in eval. here is pretty small too, even though it's gone to depth 56. Depth 60 now. I agree with Dann; this gambit is a loser for White. -1.83 14. Bf5 Rf8 15. Bg6 Qe6 1...
by zullil
Thu May 16, 2019 9:56 am
Forum: Computer Chess Club: General Topics
Topic: The Bryntse Gambit
Replies: 48
Views: 1651

Re: The Bryntse Gambit

e.g. Stockfish-dev prefers Bf5 to Bh3: -1.58 14. Bf5 Rf8 (depth 56, 8:04:21) -1.83 14. Bh3 Bxe5 (depth 56, 8:04:21) The difference in eval. here is pretty small too, even though it's gone to depth 56. Depth 60 now. I agree with Dann; this gambit is a loser for White. -1.83 14. Bf5 Rf8 15. Bg6 Qe6 1...
by zullil
Wed May 15, 2019 8:50 pm
Forum: Computer Chess Club: General Topics
Topic: TCEC S15, END of an ERA event is much more Brutal than I thought!
Replies: 47
Views: 2755

Re: TCEC S15, END of an ERA event is much more Brutal than I thought!

I wonder if this defeat---assuming it happens---will spur any interest in (re)considering alternatives to "lazy SMP". Perhaps there really are better options, at least when core counts and time controls reach TCEC-levels.
by zullil
Wed May 15, 2019 8:40 pm
Forum: Computer Chess Club: General Topics
Topic: The Bryntse Gambit
Replies: 48
Views: 1651

Re: The Bryntse Gambit

e.g. Stockfish-dev prefers Bf5 to Bh3: -1.58 14. Bf5 Rf8 (depth 56, 8:04:21) -1.83 14. Bh3 Bxe5 (depth 56, 8:04:21) The difference in eval. here is pretty small too, even though it's gone to depth 56. Depth 60 now. I agree with Dann; this gambit is a loser for White. -1.83 14. Bf5 Rf8 15. Bg6 Qe6 1...
by zullil
Wed May 15, 2019 10:28 am
Forum: Computer Chess Club: General Topics
Topic: The Bryntse Gambit
Replies: 48
Views: 1651

Re: The Bryntse Gambit

Stockfish-dev prefers Bf5 to Bh3: -1.58 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 Qa6 26. c4 cxb4 27. Rxb4 b6 28. h3 Kc8 29. Rb5 Qa4 30. Re1 Qxa2 31. Bd4 Qc2 32. Rb2 Qa4 33. Rbb1 Qa3 34. Rb5 a6 35. ...
by zullil
Sun May 12, 2019 5:16 pm
Forum: Computer Chess Club: General Topics
Topic: The Bryntse Gambit
Replies: 48
Views: 1651

Re: The Bryntse Gambit

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. 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+ ...
by zullil
Fri May 10, 2019 10:28 am
Forum: Computer Chess Club: General Topics
Topic: h4 wins
Replies: 4
Views: 371

Re: h4 wins

3r1k1r/pQ3p2/4p3/qRPPn1pp/N2b1pb1/P1NB2P1/6P1/R4K2 b - - acd 38; ce 464; acs 500; acn 1345000; pv h4 d6 Rd7 Qa8+ Qd8 Rb8 Kg7 Rxd8 Rdxd8 Qe4 hxg3 Qxd4 Rh1+ Qg1 Rxg1+ Kxg1 Nxd3 Ne4 f5 Nxg5 Kf6 Nf3 e5 Rf1 Bxf3 Rxf3 e4 Rf1 Ke6 Rd1 Kd7 Rf1 Kc6 Nc3 Kxc5 Ne2 Kxd6 Nxf4 Ke5 Nxd3+ exd3 Re1+ Kd4 a4 ; bm h4; A...