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Subject: Re: Testposition for all - except Junior

Author: Anthony Cozzie

Date: 15:48:38 09/26/03

Go up one level in this thread


>[D]8/7p/6pP/1B4P1/pp6/1k1K4/8/8 w - - 0 1

Zappa with 5-man tablebases needs 17 seconds:

1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=Q a1=Q 5. Qxa1
 = (0.00)       Depth: 14/42    00:00:06.30     3029kN
. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B Ka3 5. Kc2 b3 6. Kc1 Ka4 7. Bf6 Kb4 8.
Kb2 Kc4
 = (1.09)       Depth: 15/45    00:00:17.26     9300kN
 = (1.09)       Depth: 16/48    00:00:30.19     16912kN
1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B Ka3 5. Kc2 b3 6. Kc1 Ka4 7. Bf6 Kb4 8.
Kb2 a1=Q 9. Kxa1 Ka4 10. Bc3 Ka3 11. Kb1
 = (1.49)       Depth: 17/51    00:02:09.52     80135kN

Without the tablebases, it is much slower
1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=Q a1=Q 5. Qxa1
 = (0.00)       Depth: 16/48    00:00:26.99     15123kN
1. Be8 a3 2. Bxg6 hxg6 3. h7 Kb2 4. h8=Q Kb1 5. Kc4 b3 6. Kxb3 a2 7. Qa8 a1=N 8.
Ka4 Kc1 9. Qh1 Kb2 10. Kb5 Ka2 11. Qd1 Kb2
 + (0.30)       Depth: 17/51    00:00:52.29     29167kN
1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B Ka3 5. Kc2 b3 6. Kc1 a1=Q 7. Bxa1 Kb4 8.
Kd2 Ka4 9. Bc3 Ka3 10. Kd1 Ka2
 = (1.49)       Depth: 17/51    00:01:28.11     50600kN

anthony



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