Search found 132 matches

by Ignacio
Mon Jun 22, 2020 11:12 am
Forum: Computer Chess Club: General Topics
Topic: Hard Puzzles found on Gameknot
Replies: 48
Views: 1458

Re: Hard Puzzles found on Gameknot

I have been remiss in reporting my results. This is the one that I have not solved yet: 8/2ppK1p1/2pn2pb/p2b2pk/3R2Rn/B2PP2P/P7/5B2 w - - acd 49; bm Bxd6; ce 2043; dm 24; pv Bxd6; These two I am verifying by 80 ply back-to-front searches of the pvs reported by Mike: 8/1ppr4/br6/1pkp4/2p1Qp2/KPp2p2/...
by Ignacio
Mon Jun 22, 2020 10:31 am
Forum: Computer Chess Club: General Topics
Topic: Hard Puzzles found on Gameknot
Replies: 48
Views: 1458

Re: Hard Puzzles found on Gameknot

I have been remiss in reporting my results. This is the one that I have not solved yet: 8/2ppK1p1/2pn2pb/p2b2pk/3R2Rn/B2PP2P/P7/5B2 w - - acd 49; bm Bxd6; ce 2043; dm 24; pv Bxd6; These two I am verifying by 80 ply back-to-front searches of the pvs reported by Mike: 8/1ppr4/br6/1pkp4/2p1Qp2/KPp2p2/...
by Ignacio
Thu Apr 30, 2020 11:27 am
Forum: Computer Chess Club: General Topics
Topic: Other fun mates
Replies: 81
Views: 7574

Re: Other fun mates

Mate in 19.
by Ignacio
Sat Nov 30, 2019 9:15 pm
Forum: Computer Chess Club: General Topics
Topic: Mate in 11 or not?
Replies: 9
Views: 1161

Re: Mate in 11 or not?

Try Fire 7.1
by Ignacio
Tue Oct 17, 2017 9:12 pm
Forum: Computer Chess Club: General Topics
Topic: Godzilla Endgame Chess Puzzles (2)
Replies: 12
Views: 2679

Re: Godzilla Endgame Chess Puzzles (2)

Walter, one correction in number 6: after 1.Nf6 Rxd5 2.Nxd5 f5 now is mate in 8 with 3.Kb6 (no 3.Rc5).

Ignacio
by Ignacio
Sun Aug 20, 2017 10:32 am
Forum: Computer Chess Club: General Topics
Topic: Faster Forced Mate
Replies: 120
Views: 17647

Re: Mate in #44 ChestUCI.epd nbr 6290

Gustav says Mate in 39: 1.Sc7-e6 Ld4-e3 2.Se6-g7 Le3-g1 3.Sg7-f5 Lg1-c5 4.Sf5-h4 Lc5-d4 5.Sh4-g2 Ld4-f2 6.Sg2-f4 Lf2-d4 7.Sf4-d3 Ld4-c3 8.Sd3-c5 Lc3-d4 9.Sc5-e4 Ld4-e3 10.Se4-g3 Bh7-h6 11.Sg3-f5 Le3-c5 12.Sf5-h4 Lc5-d4 13.Sh4-g2 Ld4-f2 14.Sg2-f4 Lf2-d4 15.Sf4-d3 Ld4-c3 16.Sd3-c5 Lc3-d4 17.Sc5-e4 Ld4...
by Ignacio
Wed Jul 26, 2017 10:50 am
Forum: Computer Chess Club: General Topics
Topic: A french defence game
Replies: 267
Views: 28330

Re: A french defence game

My analisis:
1.Qf3 Rh8 2.h5 and now:
a) 2... Nxe3 3.fe3 Qxg5 4.0-0-0 winning.
b) 2... Kf8 3.Ng4 Ke7 4.g6 Kd7 5.Nf6+ Kc7 6.Kd2 and white is better.
by Ignacio
Tue Jul 25, 2017 9:59 am
Forum: Computer Chess Club: General Topics
Topic: Faster Forced Mate
Replies: 120
Views: 17647

Re: yacpdb position 67722 Mate in 24

Thanks for that pgn subvariation for Mate in 55, saved it on my backups. Here's a puzzles from yacpdb position 67722 published as Mate in #42, but there seems to be a faster mate in 24. [d]8/p5p1/4p3/4Pp2/2R2P1K/3P1P2/pk1p4/qrbB4 Published as Mate in 42 at yacpdb position 67722, but there's a cook?...
by Ignacio
Mon Jul 24, 2017 10:17 am
Forum: Computer Chess Club: General Topics
Topic: Queen and pawn endgame
Replies: 84
Views: 11605

Re: Queen and pawn endgame

Qc5 and Qe3 lose too, and there are no other moves. check better with your fish. [d] 8/1p3Qpk/pq5p/4K2P/6P1/5P2/P1P5/8 b - - 12 48 Perhaps there was confusion. In the position above, which I think appeared in both games you posted, Black played Qb2+, which seems to lose (evaluation for White goes a...