Houdini does, takes quite a while though...F.Huber wrote:The exception is
8/1p6/2B1K1p1/6NP/8/8/1P4pq/1R4bk w - -
and I'm really wondering which program sees a mate here?
Robert
Moderators: hgm, Rebel, chrisw
Houdini does, takes quite a while though...F.Huber wrote:The exception is
8/1p6/2B1K1p1/6NP/8/8/1P4pq/1R4bk w - -
and I'm really wondering which program sees a mate here?
That's interesting, Robert!Houdini wrote:Houdini does, takes quite a while though...F.Huber wrote:The exception is
8/1p6/2B1K1p1/6NP/8/8/1P4pq/1R4bk w - -
and I'm really wondering which program sees a mate here?
kgburcham wrote:[D] 8/1p6/2B1K1p1/6NP/8/8/1P4pq/1R4bk w - -
Houdini sees the winning line in about 6 minutes, but i have Nalimov 4,5, and 6 egtb. I think with egtb it would show a mate. Not sure how to get the G egtb to work. Mate in 34.
Houdini 1.5ab-16 x64 (4096 MB)
31/66 1:28 +0.88 1.Nf3 gxh5 2.Be4 Qh3+ 3.Kf6 Qxf3+ 4.Bxf3 Kh2 5.Bxg2 Kxg2 6.Kg5 Bf2 7.Kxh5 Kf3 8.Kg6 Ke4 9.Rd1 Bd4 10.b3 b6 11.Kf7 Kd5 12.Rh1 Kd6 13.Rh5 Be3 14.Kf6 (2.708.674.334) 30586
32/66 2:14 +0.88 1.Nf3 gxh5 2.Be4 Qh3+ 3.Kf6 Qxf3+ 4.Bxf3 Kh2 5.Bxg2 Kxg2 6.Kg5 Bf2 7.Kxh5 Kf3 8.Kg6 Ke4 9.Rd1 Bd4 10.b3 b6 11.Kf7 Kd5 12.Rh1 Kd6 13.Rh5 Be3 14.Kf6 (4.277.431.847) 31699
33/67 3:41 +0.95 1.Nf3 gxh5 2.Be4 Qh3+ 3.Kf6 Qxf3+ 4.Bxf3 Kh2 5.Bxg2 Kxg2 6.Kg5 Bf2 7.Kxh5 Kf3 8.Kg6 Ke4 9.Rd1 Bd4 10.b3 Kd5 11.Kf5 b5 12.Rd3 Kc5 13.Ke4 Bg7 14.Rg3 (7.379.375.062) 33241
34/69 5:52 +1.02++ 1.Nf3 (12.150.361.435) 34421
34/69 6:09 +1.17++ 1.Nf3 (12.765.100.866) 34553
34/70 6:40 +1.59++ 1.Nf3 (13.957.380.940) 34882
34/73 7:59 +2.70++ 1.Nf3 (17.149.671.866) 35744
34/78 11:55 +5.76++ 1.Nf3 (26.127.612.962) 36519
34/80 16:45 +6.30 1.Nf3 gxh5 2.Kd5 bxc6+ 3.Ke4 c5 4.Kd5 h4 5.Kc6 h3 6.Kb7 c4 7.Ka8 c3 8.bxc3 Qb8+ 9.Rxb8 Bf2 10.Rh8 g1N 11.Nxg1 Bxg1 12.Rxh3+ Kg2 13.Rh4 Kg3 14.Rh8 (37.533.087.421) 37345
35/80 20:45 +6.30 1.Nf3 gxh5 2.Kd5 bxc6+ 3.Ke4 c5 4.Kd5 h4 5.Kc6 h3 6.Kb7 c4 7.Ka8 c3 8.bxc3 Qb8+ 9.Rxb8 Bf2 10.Rh8 g1N 11.Nxg1 Bxg1 12.Rxh3+ Kg2 13.Rh4 Kg3 14.Rh8 (46.859.299.064) 37626
Mate in 21
position after 11...Bxg1
so maybe a mate in 32
[D] K6R/8/8/8/8/2P4p/8/6bk w - -
Hi Franz,F.Huber wrote:Well, testing this position I've already reached parameters K3/P10/X44.Paloma wrote: The P parameter must now be 10, but it takes unfortunately a long time.
Is your K4 really necessary? Then maybe K4/P10/X44 could work ...
It's a mate in 32, like Kim reported.F.Huber wrote:That's interesting, Robert!
Mate in how many moves?
And could you maybe post Houdini's PV?
Thanks Ignacio.Ignacio wrote: Chest 5.1:
FEN: 1r5r/1bp1Rppp/p1kB4/1p1q4/1Q6/2P2N2/PP3PPP/RN4K1 w - - (13+11)
Search for Special-Mate [C0/R0/K4/P10/X44] in 10 ... (Hash=2044MB)
10 6:12:03 10.265.486.046 507.075 +M10 Nb1-a3
Maybe, but definitely not a position for a matesolver!Houdini wrote: A challenging position!