Next step: 7men bitbases!? Their sizes should be comparable with a the size of the 6men tablebases.
But who will generate them?
Search found 93 matches
- Thu Oct 12, 2006 4:39 pm
- Forum: Endgame Tablebases
- Topic: Congratulations to all ...
- Replies: 2
- Views: 3022
- Sun Sep 24, 2006 6:04 pm
- Forum: Endgame Tablebases
- Topic: Why to use EGTB? We need examples.
- Replies: 22
- Views: 16417
Here is a new example - a position from the 2nd game of the Topalov-Kramnik WCh match: 6k1/1p2r3/3K4/6N1/3P4/8/8/8 b - - 0 1 1...Re1? [1...Re3! was the only winning move 2.d5 Kf8 3.Kd7 b5 4.Ne6+ Kg8! Switchback 5.d6 b4 6.Ke7 b3 7.d7 Rd3 8.Nc5 Rxd7+! 9.Kxd7 b2-+] 2.d5 Kf8 3.Ne6+? [Only the natural 3....
- Thu Sep 07, 2006 3:49 pm
- Forum: Endgame Tablebases
- Topic: MD5sum of the entire library
- Replies: 24
- Views: 16213
Sorry Andrey, I don't have the EG165. :( I have realised that Guy's file contains only the main line and I am convinced that your study contains many interesting sidelines. I didn't analysed very hard the positions after the reciprocal zugzwang(the anticipated part of the new study). It is very inte...
- Tue Sep 05, 2006 7:55 pm
- Forum: Endgame Tablebases
- Topic: MD5sum of the entire library
- Replies: 24
- Views: 16213
- Sun Sep 03, 2006 6:09 pm
- Forum: Endgame Tablebases
- Topic: MD5sum of the entire library
- Replies: 24
- Views: 16213
Sorry Guy, I still think it works. Don't you think that every position has a maximal length Unique Move Sequence? That length gives us the DTE for a position. Wilhelm gives exactly that number. Or put it this way: The black can choose between moves: -a black move which leads to a position with more ...
- Sun Sep 03, 2006 12:38 pm
- Forum: Endgame Tablebases
- Topic: MD5sum of the entire library
- Replies: 24
- Views: 16213
A database with new metrics - DTE - Depth To End (of the study) - can be created. All positions with duals have DTE=0 (there the study ends). A mate position has DTE 0, a position with uniqe mating move has DTE 1 etc. In a stalemate position we have DTE=0 (this could be the end of a stalemate study)...
- Wed Aug 30, 2006 8:37 pm
- Forum: Endgame Tablebases
- Topic: KPPKPP and the 'incomplete tablebase problem'
- Replies: 9
- Views: 8156
It seems that the incomplete tablebases are good only for analysing with an engine. The engine can complete the list with evaluation of the moves analysing itself the missing positions which occur after transformation. But when is playing a game, the GUI may choose another move even when the engine ...
- Wed Aug 30, 2006 5:07 pm
- Forum: Endgame Tablebases
- Topic: KPPKPP and the 'incomplete tablebase problem'
- Replies: 9
- Views: 8156
Today the incomplete database problem never occur. You can get perfect results with the KPPKPP even with no 5men databases installed. The engine tries to calculate if a position from a missing database is reached, but every KPPKPP position is correctly evaluated. So even having only some of the 6men...
- Sun Aug 27, 2006 11:38 am
- Forum: Endgame Tablebases
- Topic: 7-man endgames with pawns
- Replies: 3
- Views: 14371
- Sun Aug 06, 2006 4:40 pm
- Forum: Endgame Tablebases
- Topic: Nalimov 7men?
- Replies: 7
- Views: 6398
- Wed Aug 02, 2006 7:54 pm
- Forum: Endgame Tablebases
- Topic: Tablebase Studies
- Replies: 0
- Views: 3004
Tablebase Studies
I have attached a small collection of endgame studies with 6men tablebase positions. The database has an endgame key with all material configurations up to 6 pieces (you can select it by the "Endgames" tab in Chessbase). This endgame key can be imported to every .cbh database and you insta...
- Sun Jul 09, 2006 2:25 am
- Forum: Endgame Tablebases
- Topic: kqpkrb
- Replies: 25
- Views: 19781
Marc, let's see if you can reproduce Eugene's .tbs for KPPKPP: wtm: Lost in 0: 16424 wtm: Lost in 1: 507796 wtm: Lost in 2: 496720 wtm: Lost in 3: 1147055 wtm: Lost in 4: 3032634 wtm: Lost in 5: 10848451 wtm: Lost in 6: 18353722 wtm: Lost in 7: 23912416 wtm: Lost in 8: 28010956 wtm: Lost in 9: 34162...
- Mon Jun 26, 2006 1:12 am
- Forum: Endgame Tablebases
- Topic: Why to use EGTB? We need examples.
- Replies: 22
- Views: 16417
Another major interest of tablebases is to analyse many studies ( and cook some) . Study composers , problem composers too probably , may use them. Yes, at least half of the QN/Q studies from your database are cooked. :( As a study composer I often use the tablebases: 1.indirectly - analysing with ...
- Sun Jun 25, 2006 3:46 pm
- Forum: Endgame Tablebases
- Topic: Why to use EGTB? We need examples.
- Replies: 22
- Views: 16417
- Sun Jun 25, 2006 10:37 am
- Forum: Endgame Tablebases
- Topic: Why to use EGTB? We need examples.
- Replies: 22
- Views: 16417
- Fri Jun 09, 2006 8:23 pm
- Forum: Endgame Tablebases
- Topic: 6 Men TB Generator
- Replies: 29
- Views: 26108
- Fri Jun 09, 2006 12:58 pm
- Forum: Endgame Tablebases
- Topic: 6 Men TB Generator
- Replies: 29
- Views: 26108
- Wed May 17, 2006 12:53 pm
- Forum: Endgame Tablebases
- Topic: Krill, What do you think of te new endgames for Shredder 10?
- Replies: 3
- Views: 4193