Search found 2751 matches

by Rebel
Mon Mar 26, 2012 3:17 pm
Forum: Computer Chess Club: General Topics
Topic: Another Tarrasch beauty
Replies: 38
Views: 3982

Re: Another Tarrasch beauty

I suspect most masters would reject ...Rb8 because it seems likely white can get 2 connected passed pawns and advance them quickly for a win. Thus, they would play something active (Rd2) even in bullet chess. It would take a lot of work for a human to confirm or deny whether this is really the best...
by Rebel
Mon Mar 26, 2012 12:22 pm
Forum: Computer Chess Club: General Topics
Topic: Another Tarrasch beauty
Replies: 38
Views: 3982

Re: Another Tarrasch beauty

I suspect most masters would reject ...Rb8 because it seems likely white can get 2 connected passed pawns and advance them quickly for a win. Thus, they would play something active (Rd2) even in bullet chess. It would take a lot of work for a human to confirm or deny whether this is really the best...
by Rebel
Sun Mar 25, 2012 10:39 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: stand pat or side to move bonus
Replies: 47
Views: 6610

Re: stand pat or side to move bonus

D) Do not give the bonus at all In Diep i'm not giving a bonus at all. Some 10+ years ago i tested many games with and without, and it didn't help at all, also to my surprise. I have the same experience. From my (old) to-do-list: 1. King-safety and passed pawn: subtract 10-15-20-25% from the score,...
by Rebel
Sun Mar 25, 2012 8:37 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: stand pat or side to move bonus
Replies: 47
Views: 6610

Re: stand pat or side to move bonus

D) Do not give the bonus at all In Diep i'm not giving a bonus at all. Some 10+ years ago i tested many games with and without, and it didn't help at all, also to my surprise. I have the same experience. From my (old) to-do-list: 1. King-safety and passed pawn: subtract 10-15-20-25% from the score,...
by Rebel
Sun Mar 25, 2012 5:24 pm
Forum: Computer Chess Club: General Topics
Topic: Another Tarrasch beauty
Replies: 38
Views: 3982

Re: Another Tarrasch beauty

I think a GM will play 1..Rd2 instantly.
by Rebel
Sun Mar 25, 2012 3:56 pm
Forum: Computer Chess Club: General Topics
Topic: Another Tarrasch beauty
Replies: 38
Views: 3982

Another Tarrasch beauty

[d]3r4/7p/Rp4k1/5p2/4p3/2P5/PP3P1P/5K2 b - - This is Tarrasch-Rubinstein, San Sebastian 1911. Black is a pawn down and the b6 pawn is under attack. Passive defence with 1...Rd6 or 1...Rb8 is doomed to failure. Rubinstein grasps his only chance: To mobilize his rook......... Rd2! is a draw. Which of ...
by Rebel
Sun Mar 25, 2012 3:34 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: checks in quies
Replies: 29
Views: 5354

Re: checks in quies

[d] 5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - Here is a nice position to test checks in QS. 00:00:00 1.00 -12.10 1.cxd3 Qb4 2.Kf7 Nxg3 00:00:00 1.04 -11.36 1.Kxf8 Qb4 2.Kg8 Kxf6 3.cxd3 Nxg3 00:00:00 1.17 M 30 1.Neg4 Kf5 2.Nh6 Ke5 3.Nf7 Kf5 4.Nd6 :wink: That's not really true Ed, as extensions...
by Rebel
Sun Mar 25, 2012 1:02 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: stand pat or side to move bonus
Replies: 47
Views: 6610

Re: stand pat or side to move bonus

D) Do not give the bonus at all In Diep i'm not giving a bonus at all. Some 10+ years ago i tested many games with and without, and it didn't help at all, also to my surprise. I have the same experience. From my (old) to-do-list: 1. King-safety and passed pawn: subtract 10-15-20-25% from the score,...
by Rebel
Sun Mar 25, 2012 12:32 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: checks in quies
Replies: 29
Views: 5354

Re: checks in quies

[d] 5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - Here is a nice position to test checks in QS. 00:00:00 1.00 -12.10 1.cxd3 Qb4 2.Kf7 Nxg3 00:00:00 1.04 -11.36 1.Kxf8 Qb4 2.Kg8 Kxf6 3.cxd3 Nxg3 00:00:00 1.17 M 30 1.Neg4 Kf5 2.Nh6 Ke5 3.Nf7 Kf5 4.Nd6 :wink: That's not really true Ed, as extensions...
by Rebel
Thu Mar 22, 2012 5:07 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: checks in quies
Replies: 29
Views: 5354

Re: checks in quies

[d] 5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - -

Here is a nice position to test checks in QS.

00:00:00 1.00 -12.10 1.cxd3 Qb4 2.Kf7 Nxg3
00:00:00 1.04 -11.36 1.Kxf8 Qb4 2.Kg8 Kxf6 3.cxd3 Nxg3
00:00:00 1.17 M 30 1.Neg4 Kf5 2.Nh6 Ke5 3.Nf7 Kf5 4.Nd6

:wink: