Author: Uri Blass
Date: 07:37:36 02/25/05
Go up one level in this thread
On February 25, 2005 at 10:20:30, Robert Hyatt wrote: >On February 25, 2005 at 02:12:45, Tony Nichols wrote: > >>On February 25, 2005 at 00:00:44, Terry McCracken wrote: >> >>>Does your program find Be2+!....? >>> >>>[D]8/8/8/1k6/4p1B1/8/P2K1p2/8 w - - 0 56 >>> >>>Terry >> >>Good Test >>Shredder 9 at 35 ply likes Ke2+- >>Junior 9 at 31 ply likes Ke2 +/- >>Fritz 8 at 24 ply likes Ke2 +/- >>Hiarcs 9 at 19 ply likes Ke2 +/- >>surprisingly Fritz 5.32 finds Be2 at 15 ply! It also shows that Bh3 also wins. >>Crafty 19.01 also finds Be2 >>Regards >>Tony > > >This is not that hard: > > 20 13.69 0.01 1. Ke2 e3 2. Bh3 Kb4 3. Kxe3 <EGTB> > (s=6) > 20 18.05 0.29 1. Be2+ Kb4 2. Kc1 Ka3 3. Kb1 e3 4. > Ka1 Kb4 5. Kb2 Ka4 6. a3 Ka5 7. Kb3 > Kb6 8. Kb4 Kc6 9. a4 Kb6 10. a5+ Kb7 > 11. a6+ Ka7 12. Kc5 (s=3) > 20-> 18.63 0.29 1. Be2+ Kb4 2. Kc1 Ka3 3. Kb1 e3 4. > Ka1 Kb4 5. Kb2 Ka4 6. a3 Ka5 7. Kb3 > Kb6 8. Kb4 Kc6 9. a4 Kb6 10. a5+ Kb7 > 11. a6+ Ka7 12. Kc5 (s=6) > 21 19.91 0.31 1. Be2+ Kb4 2. Kc1 Ka3 3. Kb1 e3 4. > Ka1 Kb4 5. Kb2 Ka4 6. a3 Ka5 7. Kb3 > Kb6 8. Kb4 Kc6 9. a4 Kb6 10. a5+ Ka7 > 11. Kc5 Kb7 12. Kd6 (s=5) > 21-> 27.07 0.31 1. Be2+ Kb4 2. Kc1 Ka3 3. Kb1 e3 4. > Ka1 Kb4 5. Kb2 Ka4 6. a3 Ka5 7. Kb3 > Kb6 8. Kb4 Kc6 9. a4 Kb6 10. a5+ Ka7 > 11. Kc5 Kb7 12. Kd6 (s=6) > 22 29.05 0.53 1. Be2+ Kb4 2. Kc1 Ka3 3. Kb1 e3 4. > Ka1 Kb4 5. Kb2 Ka4 6. a3 Ka5 7. Kb3 > Kb6 8. Kb4 Kc6 9. a4 Kd5 10. a5 Kd6 > 11. a6 Kc6 12. Kc4 <HT> (s=5) > 22-> 44.20 0.53 1. Be2+ Kb4 2. Kc1 Ka3 3. Kb1 e3 4. > Ka1 Kb4 5. Kb2 Ka4 6. a3 Ka5 7. Kb3 > Kb6 8. Kb4 Kc6 9. a4 Kd5 10. a5 Kd6 > 11. a6 Kc6 12. Kc4 <HT> (s=5) > 23 46.02 +1 1. Be2+!! > 23 46.47 +3 1. Be2+!! > 23 47.61 +M 1. Be2+!! > 23 1:29 6.66 1. Be2+ Ka4 2. Kc1 Ka3 3. Kb1 Ka4 4. > Kb2 Kb4 5. a3+ Ka4 6. Bc4 Ka5 7. Kb3 > Kb6 8. a4 Ka5 9. Bf1 Kb6 10. Kb4 Kc6 > 11. Be2 Kd5 12. a5 Kd4 <HT> (s=4) > >Some might be confused as the 5 piece egtb's will lead them to play Ke2 with a >draw score if they think white is losing otherwise... Not everyone has the KBP vs KP tablebases. I tested shredder9 and it could not find it after 20 minutes but the KBP vs KP tablebases was not intalled on the machine. I have only part of the tablebases in my machine(all the 5 piece tablebases no pawn and some important 5 piece tablebases with pawns like KPP vs KP or KRP vs KR but not KBP vs KP) Uri
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