Search found 1881 matches

by peter
Mon Oct 18, 2010 3:47 pm
Forum: Computer Chess Club: General Topics
Topic: Computer fail
Replies: 23
Views: 4462

Re: Computer fail

Hi!
Thanks for the great position!
Do you know the origin and if so, could you give it, please?
Thanks in advance
by peter
Sun Oct 17, 2010 11:59 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Rybka 4 Q6600 - Houdini 1.03a Q6600 35.5-24.5
Replies: 8
Views: 3455

Re: Rybka 4 Q6600 - Houdini 1.03a Q6600 35.5-24.5

I would like to see 30 positions that we are going to call 1)Rybkafavourite_testsuite.pgn. 2)Stockfishfavourite_testsuite.pgn 3)Naumfavourite_testsuite.pgn 4)Houdinifavourite_testsuite.pgn The idea is that you search for positions when Rybka4 is going to be number 1 by a big margin in test 1 and st...
by peter
Sun Oct 10, 2010 5:46 am
Forum: Computer Chess Club: General Topics
Topic: Would you willingly go into this position as White?
Replies: 10
Views: 1453

Re: Would you willingly go into this position as White?

Gull made a decisive positional error with Ne8. a5 was the only way to save, followed by sacrificing f6 Knight for dangerous connected passers. Never underestimate the power of connected passers (especially that too in center) Hi Swami! Guess you're very right. Like you already said, game could hav...
by peter
Mon Oct 04, 2010 5:57 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 1.9 JA update available
Replies: 103
Views: 37850

Re: Stockfish 1.9 JA update available

[ Huge Improvement in STS 7 -- " Offer of Simplification " (+11) Great Improvement in STS 9 -- "Advancement of a/b/c Pawns" (+9) Some Improvement in STS 3 -- "Knight Outposts/Centralization/Re-positioning" (+4) Hi Swami! Thanks for documentation! Could you please give us an "official" Elo- rating f...
by peter
Sun Oct 03, 2010 11:43 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 1.9 JA update available
Replies: 103
Views: 37850

Re: Stockfish 1.9 JA update available

Regarding "singular extension" try to search for it in programing sub-forum, there is plenty of material regarding this. Maybe a little more detailed descriptions of the UCI options at the SF FAQs would be appreciated by other users too? But Tord didn't tell you he would have this on his to do list...
by peter
Sun Oct 03, 2010 11:21 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 1.9 JA update available
Replies: 103
Views: 37850

Re: Stockfish 1.9 JA update available

These 2 parameters weights the king safety for both colors. To make it very simple: Aggressiveness : Higher is the value more the engine will try to attack enemy king. Too high value could lead to suicidal king attacks ! Cowardice : Higher is the value more the engine will try to defend its king. T...
by peter
Sun Oct 03, 2010 10:00 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 1.9 JA update available
Replies: 103
Views: 37850

Re: Stockfish 1.9 JA update available

Your guess on why LMR was useful only recently is very possible. On the other hand, SF 1.8 has probably one of the most aggressive LMR/ pruning setup, it seems even more then Rybka 4 (there are more then the expected 3-4 plies of difference in search depth), so has a sense to try to scale it down a...
by peter
Sun Oct 03, 2010 6:06 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 1.9 JA update available
Replies: 103
Views: 37850

Re: Stockfish 1.9 JA test position

Considering, the g-pawn comes from 7th in one step (and probably coming from g6 as well?), the position doesn't seem as clear to me as at first glance. The line after 1... g5 is fine and winning but maybe not as much better as the one after 1... Re8 if you continue like this: 2kr4/pppq1pp1/2nb1n2/3p...
by peter
Sun Oct 03, 2010 5:22 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 1.9 JA update available
Replies: 103
Views: 37850

Re: Stockfish 1.9 JA test position

[D] 2kr4/pppq1p2/2nb1n2/3p2p1/5Pb1/2PPP2r/PP1BB1NP/R2QKN1R w KQ - 27.02 0:34 -2.34++ 1...g5 2.Bxg4 (424.141.487) 12172 Hi! Good position! Your dia doesn't fit you fen yet, 1... g5 is already played there, before going on to look more closely at the original start position, is it pawn g7 or g6? Am n...
by peter
Sat Oct 02, 2010 5:51 am
Forum: Computer Chess Club: General Topics
Topic: Shredder gets Gold
Replies: 20
Views: 4454

Re: Shredder gets Gold

AdminX wrote: PS: Who created Shredder's book? Looks like 9. ... 0-0 was a nice novelty.
According to ICGA site it was Sandro Necchi again and 9... 0-0 I couldn't find in databases nor in books neither.