Search found 136 matches

by Ignacio
Tue Sep 22, 2015 9:56 am
Forum: Computer Chess Club: General Topics
Topic: Chess Engine Puzzle (High Difficulty)
Replies: 29
Views: 6323

Re: Chess Engine Puzzle (High Difficulty)

Draw?. I don´t think so.
by Ignacio
Sun Jul 19, 2015 7:35 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position
Replies: 14
Views: 3659

Re: Test Position

The position is mate in 17 with 1.Rxf5.
by Ignacio
Fri Jun 19, 2015 4:38 pm
Forum: Computer Chess Club: General Topics
Topic: Can any chess engine or mate finder solve the following:
Replies: 45
Views: 7489

Re: Can any chess engine or mate finder solve the following:

peter wrote:
Ignacio wrote:Try Chest Database.
Thanks, found it there as well as Google did by FEN-search as #56.
Yet still don't know the author
Blathy
http://www.yacpdb.org/#search/ODg4ODg4O ... LzEvMA==/1
by Ignacio
Fri Jun 19, 2015 2:33 pm
Forum: Computer Chess Club: General Topics
Topic: Can any chess engine or mate finder solve the following:
Replies: 45
Views: 7489

Re: Can any chess engine or mate finder solve the following:

Very well, Marek, bravo Sting! Just as for the output- pv, 31.Be7 still might corst two moves, Bh6 not, seem to be other detours in rest of pv too, so as for shortest length to mate it could be shorter, but that doesn't matter here so much neither, I guess. Out of edit- time again. On the other han...
by Ignacio
Sat May 02, 2015 11:09 am
Forum: Computer Chess Club: General Topics
Topic: A very hard endgame study
Replies: 24
Views: 4726

Re: A very hard endgame study

Illegal position?
by Ignacio
Sat Nov 29, 2014 6:33 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position
Replies: 13
Views: 2580

Re: Test Position

FEN: 5rk1/1r3p2/1qb1pPpR/3pP1N1/p1pP4/PpP5/1Pn1B2P/3RB2K w - - 0 1 Spark-0.4-win64-mp-corei: 20/44 00:27 342.762.790 12.428.398 -1,60 Ae1-f2 20/44 00:32 400.467.902 12.447.715 -0,85 Ae1-f2 20/44 00:45 571.900.004 12.517.510 0,00 Ae1-f2 Cc2-b4 c3xb4 Ac6-b5 Ae2-h5 Ab5-e8 Th6-h7 Db6-a7 Th7-g7+ Rg8-h8 T...
by Ignacio
Sat Nov 29, 2014 6:30 pm
Forum: Computer Chess Club: General Topics
Topic: No chance
Replies: 179
Views: 45584

Re: No chance

FEN: 5rk1/1r3p2/1qb1pPpR/3pP1N1/p1pP4/PpP5/1Pn1B2P/3RB2K w - - 0 1 Spark-0.4-win64-mp-corei: 20/44 00:27 342.762.790 12.428.398 -1,60 Ae1-f2 20/44 00:32 400.467.902 12.447.715 -0,85 Ae1-f2 20/44 00:45 571.900.004 12.517.510 0,00 Ae1-f2 Cc2-b4 c3xb4 Ac6-b5 Ae2-h5 Ab5-e8 Th6-h7 Db6-a7 Th7-g7+ Rg8-h8 T...
by Ignacio
Mon Nov 03, 2014 2:25 pm
Forum: Computer Chess Club: General Topics
Topic: Mate in 17
Replies: 22
Views: 6808

Re: Mate in 17

Vinvin wrote:Please, give the best line.
1. Rg3 Bg8 2. Kh4 Bh7 3. Kh5 Bg8 4. Kh6 Qf3 5. Rxf3 exf3 6. Ng3 f2 7. h3 a1=Q 8. Rxa1 Kd5 9. Rd1+ Ke5 10. h4 Bh7 11. Kxh7 f1=Q 12. Rxf1 Ne6 13. Nc6+ Kd5 14. Nxe7+ Ke5 15. d8=N Nxd8 16. Rf4 Nc6 17. Re4#
by Ignacio
Mon Nov 03, 2014 9:16 am
Forum: Computer Chess Club: General Topics
Topic: Mate in 17
Replies: 22
Views: 6808

Mate in 17

[D]1N1n4/2BPbpPb/3r1p2/2p1kP2/2p1p1P1/2p1P2K/p1P3RP/3R1N1q w - - 0 1
This position is mate in 17 with 1.Rg3 but is very hard for engines.
Can your engine find it?

Ignacio.
by Ignacio
Thu Jun 26, 2014 12:11 pm
Forum: Computer Chess Club: General Topics
Topic: Quirky positions from the past
Replies: 24
Views: 3979

Re: Quirky positions from the past

5) ... Kg8 is another solution? FEN: 8/2B3bk/1Q4p1/7p/p4P1P/1q6/1P6/1K6 b - - 0 1 Komodo-7a-64bit: 15 00:01 13.855.101 7.327.796 +1,81 Rh7-g8 Ac7-d8 Db3xb6 Ad8xb6 Rg8-f7 Ab6-f2 Ag7-f6 Rb1-a2 Af6-e7 Af2-g3 Rf7-e6 b2-b3 a4xb3+ Ra2xb3 Re6-f5 Rb3-c3 Rf5-g4 Ag3-e1 16 00:02 14.856.953 7.313.671 +1,82 Rh7-...