Code: Select all
M11 1.e4 Qd4 2.Nc3 Kf8 3.Qf3+ Kg8 4.h4 Kg7 5.Rh3 Qf6 6.Rg3+ Kf7 7.Bc4+ Ke7 8.Nd5+ Kd6 9.Qxf6+ Kc5 10.Qb6+ Kxc4 11.Qb4# (5.30)Search found 133 matches
- Thu Sep 09, 2010 4:30 pm
- Forum: Computer Chess Club: General Topics
- Topic: Old, but still difficult mate in 11 position
- Replies: 14
- Views: 3136
Re: Old, but still difficult mate in 11 position
Ivanhoe 9.55b also finds the mate in 11 (needs over 15 minutes of my quad-core machine though)
- Wed Sep 08, 2010 10:59 pm
- Forum: Computer Chess Club: General Topics
- Topic: Old, but still difficult mate in 11 position
- Replies: 14
- Views: 3136
Re: Old, but still difficult mate in 11 position
The only engine that finds a mate in 11 on my machine is Fire 1.31
Code: Select all
FEN: 3qk3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
Fire_131_x64_KLO_popcnt :
29 03:50 3.644.869 949 15.804.000 +M11 e2e4 Qd8d4 Nb1c3 Ke8f7 d2d3 Qd4g7 d3d4 Qg7g6 Qd1f3+ Kf7g7 Bf1c4 Kg7h7 Qf3f8 Qg6xg2 Qf8h6+
- Wed Jun 09, 2010 1:22 pm
- Forum: Computer Chess Club: General Topics
- Topic: Test Position: One-way street
- Replies: 13
- Views: 3329
Re: Test Position: One-way street
In the following position, White mistakenly thought the pawn on e7 was up for grabs. This turned out to be very costly. How long til your engine sees the safer [D]rr4k1/2n1ppbp/q2p2p1/2pPn1B1/P3P3/2N2NPP/1PQ2PK1/R2R4 w - - 0 18 1.Nxe5! Hi :) I analyzed this position on my little Asus Netbook. Using...