Author: John Merlino
Date: 10:49:34 04/19/02
Go up one level in this thread
On April 19, 2002 at 10:49:07, Roy Eassa wrote: >On April 19, 2002 at 07:36:17, Ignacio Santos Crespo wrote: > >>On April 19, 2002 at 07:33:45, Ignacio Santos Crespo wrote: >> >>>On April 18, 2002 at 23:20:40, K. Burcham wrote: >>> >>>> >>>>Mate in 11. >>>>composed by John Kaan >>>> [D] rn1b2rk/1pp3p1/qp1p2R1/5Q2/3RN2P/1PP5/3PbP2/4K3 w - - 0 1 >>>>very difficult for some programs. >>>>kburcham >>> >>>CM8000 ss=12 on Athlon 1200 23 seconds >>> >>>Time Depth Score Positions Moves >>>0:00 1/5 0.00 116295 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nf7+ >>> Kg8 4. Nh6+ Kh8 5. Nf7+ >>>0:02 1/6 6.98 339567 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >>> Nd7 4. Qxd7 Qa1+ 5. Kxe2 Bf6 6. >>> Nxf6 Qa6+ 7. c4 >>>0:09 1/7 16.96 1519936 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >>> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Qf1+ 6. >>> Kxf1 Ra1+ 7. Ke2 Re1+ 8. Kxe1 Nf6 >>> 9. Rxb7 >>>0:23 1/8 Mate11 4077834 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >>> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Qf1+ 6. >>> Kxf1 Ra1+ 7. Ke2 Re1+ 8. Kxe1 Nf6 >>> 9. Qg6 Be7 10. Rh7+ Nxh7 11. Qg7# >>>0:35 1/9 Mate11 6809341 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >>> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Qf1+ 6. >>> Kxf1 Ra1+ 7. Ke2 Re1+ 8. Kxe1 Nf6 >>> 9. Qg6 Be7 10. Rh7+ Nxh7 11. Qg7# >>>1:16 1/10 Mate11 12865191 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >>> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Qf1+ 6. >>> Kxf1 Ra1+ 7. Ke2 Re1+ 8. Kxe1 Nf6 >>> 9. Qg6 Be7 10. Rh7+ Nxh7 11. Qg7# >> >>And CM El Rey 8 seconds >> >>Time Depth Score Positions Moves >>0:00 1/3 -3.79 2461 1. Ra4 Qb5 2. Qxb5 Bxb5 3. Rxa8 >> Bxh4 >>0:00 1/3 -3.23 5523 1. Qe6 Kh7 2. Ra4 Bxh4 3. Rxa6 Bxa6 >>0:00 1/4 -2.84 16492 1. Qe6 Kh7 2. Ng5+ Bxg5 3. Rxg5 >> g6 4. Ra4 Bc4 5. Rxc4 Qa1+ 6. Ke2 >>0:00 2/5 -2.84 55387 1. Qe6 Kh7 2. Ng5+ Bxg5 3. Rxg5 >> g6 4. Ra4 Bc4 5. Rxc4 Qa1+ 6. Ke2 >>0:00 2/5 0.00 110418 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nf7+ >> Kg8 4. Nh6+ Kh8 5. Nf7+ >>0:02 2/6 8.28 344796 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >> Nd7 4. Qxd7 Qa1+ 5. Kxe2 Bf6 6. >> Nxf6 Qa6+ 7. c4 >>0:08 3/7 Mate11 1682819 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Nf6 6. >> Qg6 Qf1+ 7. Kxf1 Ra1+ 8. Kg2 Rg1+ >> 9. Kxg1 Be7 10. Rh7+ Nxh7 11. Qg7# >>0:16 3/8 Mate11 3505773 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Nf6 6. >> Qg6 Qf1+ 7. Kxf1 Ra1+ 8. Kg2 Rg1+ >> 9. Kxg1 Be7 10. Rh7+ Nxh7 11. Qg7# >>0:38 4/9 Mate11 8323309 1. Rdxd6 cxd6 2. Nxd6 Re8 3. Nxe8 >> Nd7 4. Rxg7 Qa1+ 5. Kxe2 Nf6 6. >> Qg6 Qf1+ 7. Kxf1 Ra1+ 8. Kg2 Rg1+ >> 9. Kxg1 Be7 10. Rh7+ Nxh7 11. Qg7# > > >By what magic is CM8000 (any version or setting) able to see the mate so >quickly? In the PV, White does not even give check until move 10! For the record, the default personality on a relatively low-end machine (PIII-600) finds it in 1:02.... Time Depth Score Positions Moves 0:00 1/3 -2.72 2506 1.Ra4 Qd3 2.Rxa8 Bxh4 0:00 1/4 -2.72 9056 1.Ra4 Qb5 2.Qxb5 Bxb5 3.Rxa8 Bxh4 0:00 1/4 -2.35 23293 1.Qe6 Kh7 2.Ng5+ Bxg5 3.Rxg5 g6 4.Ra4 Bc4 5.Rxa6 Bxe6 6.Rxa8 Bxb3 0:01 2/5 -2.35 66742 1.Qe6 Kh7 2.Ng5+ Bxg5 3.Rxg5 g6 4.Ra4 Bc4 5.Rxa6 Bxe6 6.Rxa8 Bxb3 0:02 2/5 0.00 133710 1.Rdxd6 cxd6 2.Nxd6 Re8 3.Nf7+ Kg8 4.Nh6+ Kh8 5.Nf7+ 0:04 2/6 6.98 414948 1.Rdxd6 cxd6 2.Nxd6 Re8 3.Nxe8 Nd7 4.Qxd7 Qa1+ 5.Kxe2 Bf6 6.Nxf6 Qa6+ 7.c4 0:17 3/7 16.96 1809227 1.Rdxd6 cxd6 2.Nxd6 Re8 3.Nxe8 Nd7 4.Rxg7 Qa1+ 5.Kxe2 Qf1+ 6.Kxf1 Ra1+ 7.Ke2 Re1+ 8.Kxe1 Nf6 9.Rxb7 1:02 3/8 Mate11 6826848 1.Rdxd6 cxd6 2.Nxd6 Re8 3.Nxe8 Nd7 4.Rxg7 Qa1+ 5.Kxe2 Qf1+ 6.Kxf1 Ra1+ 7.Ke2 Re1+ 8.Kxe1 Nf6 9.Qg6 Be7 10.Rh7+ Nxh7 11.Qg7# jm
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