04 Jan '10 12:34>
Hmm after 16 hours, 12 minutes and 22 seconds it is back to 0,00 again... keep on searching
Originally posted by heinzkat1. Kf2 Bg2 2. Bf3 Qg7 3. Qh4+ Nh2 4. Qh8 (can't allow Qd4+) - Ugly tho 😞
[fen]8/qb6/8/2p5/2Q5/8/8/3BKn1k w - -[/fen]
White to move
Originally posted by heinzkatMy custom Stockfish finds it in less than a second. Very good.
[fen]8/8/5K2/1Q1P4/4k3/8/5R2/8 w - -[/fen]
Originally posted by NowakowskiThat's impressive. I had a friend analyze the position with Fritz (I think Fritz 11) and it couldn't find it either, nor could Chessmaster.
My custom Stockfish finds it in less than a second. Very good.
Rybka 32 didn't find it at all. (5 minutes, I'm not waiting longer)
Rybka 64 on 4 cores found it in less than a second as well, with only 2 tree tries.
(I'm sure Vasalich would be excited about that!)
Stockfish-16x-NowakowskiEdition:
1 00:00 63 0 +96.81 Kf6g6
2 00:0 ...[text shortened]... Qb5c5
4 05:01 11.433.206 90.342 +M4 Qb5b4+
5 05:01 11.390.392 87.950 +M4 Qb5c4+
Originally posted by NowakowskiI appreciate the offer, but for simple analysis purposes I think my Shredder is adequate. It's only in tricky puzzles like this one where it doesn't do well.
if interested i can give you a copy of my SF alongside arena so you can toy with it
yourself.
Originally posted by Der BayerI haven't, but I'm sure Rybka would tear it apart. Rybka sits around 2900 elo in well
I appreciate the offer, but for simple analysis purposes I think my Shredder is adequate. It's only in tricky puzzles like this one where it doesn't do well.
Just out of curiosity though, have you ever played your rybka against your customized engine to see which one comes out on top?