Author: blass uri
Date: 02:59:30 12/10/98
Go up one level in this thread
On December 10, 1998 at 04:52:08, Bernhard Bauer wrote: >On December 10, 1998 at 03:41:14, blass uri wrote: > >>8/8/4k2p/N3p1B1/2p1R2K/1p6/p7/2Nb4 w - - 0 1 >> >>This position is from an endgame that I composed >> >>solution 7.Rxe5+ Kxe5 8.Bxh6+ Kf6 9.Naxb3 cxb3 10.Nxa2 bxa2 11.Bd2 a1Q 12.Bc3+ >>Qxc3 with stalemate >> >>computers like the move 7.Naxb3 or Ncxb3 >>please wait because a program may find Rxe5+ for the wrong reason and changes >>its mind. >> > >Here is what crafty thinks: > 6-> 1.77 -0.65 1. Bf4 a1=Q 2. Rxe5+ Kf6 3. Rd5 Qa4 > 4. Rxd1 Qxa5 5. Bxh6 > 7 2.02 -- 1. Bf4 > 7 3.20 -1.51 1. Bf4 a1=Q 2. Bxe5 Qb1 3. Re1 Kf5 > 4. Rxd1 Qe4+ 5. Kh5 Kxe5 6. Kxh6 > 7 3.52 ++ 1. Rxe5+!! > 7 3.91 draw 1. Rxe5+ Kxe5 2. Bxh6 Kf6 3. Naxb3 > cxb3 4. Nxa2 bxa2 > 7-> 5.13 draw 1. Rxe5+ Kxe5 2. Bxh6 Kf6 3. Naxb3 > cxb3 4. Nxa2 bxa2 >>The initial position was: >>2N5/1p1k1qp1/3Pp2P/N1PPpqB1/2p1R1PK/1p6/p7/2Nb4 w - - 0 1 >>with the solution 1.c6+ bxc6 2.dxc6+ Kxc8 3.d7+ Qxd7 4.cxd7+ Kxd7 5.gxf5 gxh6 >>6.fxe6+ Kxe6 7.Rxe5+.... >> >> >> >>8/8/8/1N2k1B1/6K1/pRpp4/1pb5/8 w - - 0 1 >> >>This is an endgame composed by suki nahsoni >> >>Solution 1.Rxb2 d2 2.Nxc3 d1Q+ 3.Nxd1 Bxd1+ 4.Re2+ Bxe2 5.Kh4 a2 6.Bh6 Kf6 >>7.Bd2 a1Q 8.Bc3+ Qxc3 >> >>computers prefer 1.Bf4+ >> > >Not all programs. Here is what crafty thinks: > 10-> 1:21 -0.75 1. Rxb2 axb2 2. Nxc3 Kd4 3. Bd2 Kc4 > 4. Kg5 Kb3 5. Kf6 Kc4 6. Ke6 b1=Q 7. > Nxb1 Bxb1 > 11 1:48 draw 1. Rxb2 axb2 2. Nxc3 Kd4 3. Bd2 Kc4 > 4. Kg5 Kb3 5. Kf6 Kc4 6. Kg5 > 11-> 3:18 draw 1. Rxb2 axb2 2. Nxc3 Kd4 3. Bd2 Kc4 > 4. Kg5 Kb3 5. Kf6 Kc4 6. Kg5 > >>Alybadix and Gustav are known to be best in solving problems and I want to know >>if it is only for mate(helpmate) problems or also for composed endgames. >> >>Fritz5 is blind in these positions and believe that white is winning. >> >>Uri > >So crafty solves the 1. position in 4 sec and the 2. position in 2 min. >Not bad. > >Kind regards >Bernhard crafty is using big tablebases and this is the reason that it solves the position so fast. (it knows that KBP vs KB is draw in the relevant positions) Is there a CD with tablebases for crafty? It takes too much time to download big tablebases from the internet. are there other commercial programs that use database for KBP vs KB or crafty is the only one? Uri
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