Author: Mike Byrne
Date: 14:33:49 08/25/03
Go up one level in this thread
On August 25, 2003 at 09:49:46, leonid wrote:
>On August 25, 2003 at 08:04:04, leonid wrote:
>
>Try this position that is only slightly harder than previous one:
>
>[d]3Q4/5q1k/4ppp1/2Kp1N1B/RR6/3Prr2/4nP1b/3b2n1 w - -
>
>Please indicate Your solution.
>
>Leonid.
krfaty fischer sees the mate in 12 first - one ply earlier than the mate-in 11
White(1): Nf3
time used: 1.87
Black(1): 3Q4/5q1k/4ppp1/2Kp1N1B/RR6/3Prr2/4nP1b/3b2n1 w - -
White(1): go
clearing hash tables
time surplus 28.13 time limit 16666:39 (16666:39)
depth time score variation (1)
1 0.00 -8.47 1. Nxe3 gxh5 2. Nxd1 Rxd3
1-> 0.02 -8.47 1. Nxe3 gxh5 2. Nxd1 Rxd3
2 0.03 -8.47 1. Nxe3 gxh5 2. Nxd1 Rxd3
2-> 0.03 -8.47 1. Nxe3 gxh5 2. Nxd1 Rxd3
3 0.03 -8.47 1. Nxe3 gxh5 2. Nxd1 Rxd3
3 0.05 ++ 1. Bxf3!!
3 0.06 -7.34 1. Bxf3 gxf5 2. Rh4+ Kg7 3. fxe3 Nxf3
3-> 0.06 -7.34 1. Bxf3 gxf5 2. Rh4+ Kg7 3. fxe3 Nxf3
(s=4)
4 0.06 ++ 1. Bxf3!!
4 0.09 -4.83 1. Bxf3 Re4 2. dxe4 Nxf3 (s=3)
4-> 0.11 -4.83 1. Bxf3 Re4 2. dxe4 Nxf3
5 0.13 -4.73 1. Bxf3 Re4 2. Ra8 Rc4+ 3. Rxc4 Nxf3
5-> 0.22 -4.73 1. Bxf3 Re4 2. Ra8 Rc4+ 3. Rxc4 Nxf3
(s=5)
6 0.23 ++ 1. Bxf3!!
6 0.33 -3.94 1. Bxf3 Nf4 2. Bxd1 Re1 3. Bc2 exf5
4. Rxf4 Bxf4 5. Rxf4 (s=4)
6 0.70 0.00 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qd4+ (s=2)
6-> 0.75 0.00 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qd4+ (s=3)
7 0.92 0.16 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qh5+ Rf5
10. Qxh2+ Rg3 11. Qxg3+ (s=2)
7-> 3.06 0.16 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qh5+ Rf5
10. Qxh2+ Rg3 11. Qxg3+ (s=4)
8 3.38 ++ 1. Rb7!!
8 5.34 Mat12 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qh5+ Rf5
10. Qxh2+ Rg3 11. Qxg3+ Rf4 12. Qxf4#
(s=3)
8-> 6.08 Mat12 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qh5+ Rf5
10. Qxh2+ Rg3 11. Qxg3+ Rf4 12. Qxf4#
9 7.00 Mat11 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Kxf5
4. Qg4+ Ke5 5. d4+ Nxd4 6. Qxd4+ Kf5
7. Qg4+ Ke5 8. Qh5+ Rf5 9. Qxh2+ Rg3
10. Qxg3+ Rf4 11. Qxf4#
9-> 8.27 Mat11 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Kxf5
4. Qg4+ Ke5 5. d4+ Nxd4 6. Qxd4+ Kf5
7. Qg4+ Ke5 8. Qh5+ Rf5 9. Qxh2+ Rg3
10. Qxg3+ Rf4 11. Qxf4#
time=8.27 cpu=196% mat=-8 n=11040988 fh=91% nps=1335k
ext-> chk=825246 cap=19762 pp=41125 1rep=102908 mate=11269
predicted=0 nodes=11040988 evals=799607
endgame tablebase-> probes=0 hits=0
SMP-> split=387 stop=62 data=6/64 cpu=16.27 elap=8.27
mate in 11 moves.
White(1): Rb7
time used: 8.27
Black(1): krafty standard (note standard is not exactly the same as Crafty 19.04
original - as my modified code has different extensions.
queen value..........................900
rook value...........................500
bishop value.........................300
knight value.........................300
pawn value...........................100
Black(1): sd 9
search depth set to 9.
Black(1): 3Q4/5q1k/4ppp1/2Kp1N1B/RR6/3Prr2/4nP1b/3b2n1 w - -
White(1): go
clearing hash tables
time surplus 26.27 time limit 16666:39 (16666:39)
depth time score variation (1)
1 0.00 -8.50 1. Nxe3 gxh5 2. Nxd1 Rxd3
1-> 0.02 -8.50 1. Nxe3 gxh5 2. Nxd1 Rxd3
2 0.02 -8.50 1. Nxe3 gxh5 2. Nxd1 Rxd3
2-> 0.04 -8.50 1. Nxe3 gxh5 2. Nxd1 Rxd3
3 0.04 -8.50 1. Nxe3 gxh5 2. Nxd1 Rxd3
3 0.05 ++ 1. Bxf3!!
3 0.05 -7.41 1. Bxf3 gxf5 2. Rh4+ Kg7 3. fxe3 Nxf3
3-> 0.05 -7.41 1. Bxf3 gxf5 2. Rh4+ Kg7 3. fxe3 Nxf3
(s=4)
4 0.05 ++ 1. Bxf3!!
4 0.08 -4.84 1. Bxf3 Re4 2. dxe4 Nxf3 (s=3)
4-> 0.10 -4.84 1. Bxf3 Re4 2. dxe4 Nxf3
5 0.11 -4.74 1. Bxf3 Re4 2. Ra8 Rc4+ 3. Rxc4 Nxf3
5-> 0.21 -4.74 1. Bxf3 Re4 2. Ra8 Rc4+ 3. Rxc4 Nxf3
(s=5)
6 0.22 ++ 1. Bxf3!!
6 0.32 -3.95 1. Bxf3 Nf4 2. Bxd1 Re1 3. Bc2 exf5
4. Rxf4 Bxf4 5. Rxf4 (s=4)
6 0.68 0.00 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qd4+ (s=2)
6-> 0.74 0.00 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qd4+ (s=3)
7 0.90 0.00 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Kxf5
4. Qg4+ Ke5 5. d4+ Nxd4 6. Qxd4+ Kf5
7. Qg4+ Ke5 8. Qd4+ (s=2)
7-> 1.19 0.00 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Kxf5
4. Qg4+ Ke5 5. d4+ Nxd4 6. Qxd4+ Kf5
7. Qg4+ Ke5 8. Qd4+ (s=3)
8 1.46 ++ 1. Rb7!!
8 3.00 5.60 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qh5+ Rf5
10. Qxh2+ Rg3 11. Qxg3+ Rf4 12. Qxf4#
(s=2)
8-> 3.60 5.60 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Qg7
4. Qxg7+ Kxf5 5. Qg4+ Ke5 6. d4+ Nxd4
7. Qxd4+ Kf5 8. Qg4+ Ke5 9. Qh5+ Rf5
10. Qxh2+ Rg3 11. Qxg3+ Rf4 12. Qxf4#
9 4.80 ++ 1. Rb7!!
9 11.29 Mat11 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Kxf5
4. Qg4+ Ke5 5. d4+ Nxd4 6. Qxd4+ Kf5
7. Qg4+ Ke5 8. Qh5+ Rf5 9. Qxh2+ Rg3
10. Qxg3+ Rf4 11. Qxf4#
9-> 12.50 Mat11 1. Rb7 Qxb7 2. Bxg6+ Kxg6 3. Qg8+ Kxf5
4. Qg4+ Ke5 5. d4+ Nxd4 6. Qxd4+ Kf5
7. Qg4+ Ke5 8. Qh5+ Rf5 9. Qxh2+ Rg3
10. Qxg3+ Rf4 11. Qxf4#
time=12.50 cpu=197% mat=-8 n=17061398 fh=91% nps=1364k
ext-> chk=1278196 cap=22789 pp=52076 1rep=164542 mate=13964
predicted=0 nodes=17061398 evals=1265523
endgame tablebase-> probes=0 hits=0
SMP-> split=424 stop=38 data=6/64 cpu=24.64 elap=12.50
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