Search found 77 matches
- Thu Feb 21, 2019 12:01 am
- Forum: Computer Chess Club: Programming and Technical Discussions
- Topic: Top Engines without Piece-Square Tables?
- Replies: 6
- Views: 3123
Re: Top Engines without Piece-Square Tables?
Hi Erin! I made an experiment on my engine, removing the PSQT for each piece on 5k games (This is the strength of my engine psqt): https://github.com/ratosh/pirarucu/projects/14 What i noticed from my experiment: - Knight psqt seems weak, i need to improve it; - Pawn psqt seems too strong, i need to...
- Tue Feb 12, 2019 3:12 pm
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: FACE Edition 20 Div II - results and pgn available
- Replies: 1
- Views: 656
Re: FACE Edition 20 Div II - results and pgn available
Thanks for the tournament!
- Thu Jan 31, 2019 8:43 pm
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: Rubichess 1.2.1 64-bit Gauntlet for CCRL 40/40
- Replies: 4
- Views: 976
Re: Rubichess 1.2.1 64-bit Gauntlet for CCRL 40/40
Nice improvement! SMP version soon?
- Wed Jan 30, 2019 9:49 pm
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: Pirarucu 2.7.4 64-bit Gauntlet for CCRL 40/40
- Replies: 2
- Views: 651
Re: Pirarucu 2.7.4 64-bit Gauntlet for CCRL 40/40
Thanks for testing!
- Wed Jan 30, 2019 12:51 pm
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: CEO. Edition II.
- Replies: 19
- Views: 3350
Re: CEO. Edition II.
Please include Pirarucu on Brazil.
Thanks
Thanks
- Wed Jan 16, 2019 11:36 am
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: Pirarucu 2.7.4 64-bit 4CPU Gauntlet for CCRL 40/40
- Replies: 1
- Views: 670
Re: Pirarucu 2.7.4 64-bit 4CPU Gauntlet for CCRL 40/40
Thanks for testing!
- Mon Jan 14, 2019 12:04 am
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: Troubled Waters 4CPU
- Replies: 16
- Views: 4873
Re: Troubled Waters 4CPU
Thanks for the tournament Graham!
- Fri Jan 11, 2019 9:56 pm
- Forum: Computer Chess Club: Tournaments and Matches
- Topic: Troubled Waters 4CPU
- Replies: 16
- Views: 4873
Re: Troubled Waters 4CPU
Finally not last!
- Fri Jan 11, 2019 2:29 am
- Forum: Computer Chess Club: General Topics
- Topic: 101 KNNvKP mates
- Replies: 3
- Views: 838
Re: 101 KNNvKP mates
This position is a stalemate.
Code: Select all
3K3k/7p/7N/7N/8/8/8/8 b - -- Mon Dec 31, 2018 4:53 pm
- Forum: Computer Chess Club: Programming and Technical Discussions
- Topic: Bitboard question (from xiphos code)
- Replies: 9
- Views: 2008
Re: Bitboard question (from xiphos code)
A few square tricks:
- Invert the square rank: (square xor 56)
- Relative square: (square xor color * 56)
- Invert rank: (rank xor 7)
- Relative rank: (rank xor color * 7)
- Square file: (square and 7)
- Square rank: (rank >> 3)
- Mirror file: (file xor 7)