Search found 102 matches

by Maarten Claessens
Sun Aug 28, 2016 4:12 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: On-line engine blitz tourney August
Replies: 45
Views: 4988

Re: On-line engine blitz tourney August

WaDuuttie achieved an acceptable score this time because in the last round in this position
[d]8/5p2/p4Pk1/6P1/1p2K2P/1P6/3p4/2bN4 b - - 0 56
ArasanX played Ba3 and to my surpise resigned ! WaDuuttie thinks he is only slightly better and certainly not winning yet ... so what did ArasanX see ?
by Maarten Claessens
Sat Jul 30, 2016 2:40 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Quiescence Search Performance
Replies: 24
Views: 4075

Re: Quiescence Search Performance

Another way of looking at these "problem-positions" is calculating their capture-perfts for different depths. For this I replaced in the perft-routine the funcion generate() by generate_captures() as used in qs (only captures and promotions to a queen are generated). [d] rr4k1/bb2q3/p1n1p3/3p3p/1P1P...
by Maarten Claessens
Sat Jul 30, 2016 12:24 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Quiescence Search Performance
Replies: 24
Views: 4075

Re: Quiescence Search Performance

And another one. Feel free to check if these are pathological cases for your QS, too. [d] r1bq1rk1/1p1n1pp1/2pb3p/p1Npp3/1PPPn3/P3PN2/3BBPPP/R2Q1RK1 b - - 1 13 This seems indeed a tough one: WaDuuttie> sb r1bq1rk1/1p1n1pp1/2pb3p/p1Npp3/1PPPn3/P3PN2/3BBPPP/R2Q1RK1 b - - 1 13 WaDuuttie> qs e4d2 -8 &#...
by Maarten Claessens
Sat Jul 30, 2016 8:13 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Quiescence Search Performance
Replies: 24
Views: 4075

Re: Quiescence Search Performance

This is the debug-output of WaDuuttie for the two positions: WaDuuttie> sb rr4k1/bb2q3/p1n1p3/3p3p/1P1PnppN/P1NQ3P/3B1PP1/2RBR1K1 w - - 2 28 WaDuuttie> qs c3e4 -18 (45) e1e4 bad d3e4 bad h3g4 -44 (134) c3d5 bad d1g4 bad d2f4 -8 (144) d3a6 bad Quiesce: -8 / 14 (324 nodes&#...
by Maarten Claessens
Wed Jun 08, 2016 11:35 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Gambit Festival started
Replies: 16
Views: 1778

Re: Gambit Festival started

I guess what occured in the game is discussed in this thread.
by Maarten Claessens
Tue Jun 07, 2016 8:45 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Gambit Festival started
Replies: 16
Views: 1778

Re: Gambit Festival started

The other day WaDuuttie played this game against Phalanx and lost on time: [pgn] [Event "Gambit"] [Site "EDDY-PC"] [Date "2016.06.06"] [Round "3"] [White "Phalanx"] [Black "WaDuuttie"] [Result "1-0"] [BlackElo "2200"] [ECO "C52"] [Opening "Evans Gambit"] [Time "17:47:50"] [Variation "Compromised Def...
by Maarten Claessens
Mon May 30, 2016 6:26 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Gambit Festival
Replies: 12
Views: 3341

Re: Gambit Festival

WaDuuttie will join the party ! I'll send you the latest version by mail.
by Maarten Claessens
Fri May 20, 2016 6:28 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CENT - Sub Pool started
Replies: 17
Views: 1876

Re: CENT - MAIN Pool started

[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 1 None of the engines did find Shirov's elegant 1...Bh3 giving withe at least some hope for a draw. Curious what the big-boys will do here. Well, the "big-boys" are done with this position. Of the 56 games played, 42 continued with 1...Be4 (score 0-18-24) ...
by Maarten Claessens
Tue May 17, 2016 11:37 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: CENT - Sub Pool started
Replies: 17
Views: 1876

Re: CENT - MAIN Pool started

WaDuuttie needs over 762 million nodes (and more than 6 and a halve minute on my system) to see the right move: FEN: 8/4K2p/6pr/5pk1/1pB2R2/p4PP1/8/8 w - - 0 1 ... 33 05:13 611,483,727 1,950,444 0.00 c4d5 h6h3 f4b4 h3g3 b4a4 h7h5 a4a3 h5h4 a3a8 g5f4 e7f6 g3g1 a8h8 g6g5 h8h6 g1d1 d5e6 d1d6 h6h5 f4f3 ...
by Maarten Claessens
Tue May 17, 2016 9:09 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: CENT - Sub Pool started
Replies: 17
Views: 1876

Re: CENT - MAIN Pool started

SF-7 with tablebases:

Code: Select all

 30/47	04:38	 152,359,672	548,324	+1.84	Rd4d5 Ra6c6 Kg2f3 Kg7f6 h4h5 Kf6e7 Rd5b5 Rc6a6 Kf3e4 Ke7d8 Ke4d4 Kd8d7 Rb5b7+ Kd7e8 h5xg6 f7xg6 Rb7b5 Ke8d7 f2f4 Ra6a8 Kd4c4 Ra8a6 Kc4b4 Kd7c7 Rb5e5 Ra6d6 Kb4b5 h6h5 a5a6 Kc7b8 Kb5a5 Rd6d3 Re5g5 Rd3a3+ Ka5b6