Author: Andreas Stabel
Date: 00:16:43 11/25/04
Go up one level in this thread
On November 24, 2004 at 08:54:45, Jason Kent wrote:
>How long does it take your engine to find a mate in 13?
>
>[D]8/5p1k/7P/7R/2pPp3/1nP5/1r3r1P/6RK b - - 0 54
>8/5p1k/7P/7R/2pPp3/1nP5/1r3r1P/6RK b - - 0 54
>
>CM 10th Edition Steadfast finds it in 2:14
>
>10thEd_SteadF WB1 124 MB:
>3001 00:00 2.59 e3 Rg7+ Kh8 Rg1 f5
>4001 00:00 2.70 e3 d5 Rbd2 Rg7+ Kh8
>5001 00:00 2.76 e3 Rg7+ Kh8 Re5 Rxh2+ Kg1 Rxh6 Rxf7 Kg8
>6001 00:00 2.84 e3 Rg7+ Kh8 Re5 Rf1+ Rg1 e2 d5 Kh7 Re8 Rxg1+ Kxg1 Kxh6
>7001 00:01 4.26 e3 Re1 Rbc2 Rg1 Rxc3 Rg7+ Kh8 Re5 Rc1+ Rg1 Rxg1+ Kxg1
>8002 00:02 6.64 e3 Re1 Nd2 Rh3 Nf3 Rxf3 Rxf3 Kg1 Rd2 Rb1 Kxh6
>8002 00:02 6.75 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Rf1+ Kg2 e2 Re3
>e1Q Rxe1 Rxe1
>9002 00:03 9.59 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3
>Kg2 e2 Kxf3 e1Q d5 Qxc3+ Ke4 Kxh7
>10002 00:05 10.24 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3
>Kg2 e2 Kxf3 e1Q Kf4 Qxc3 Ke4 Qe1+ Kf4 Kxh7
>11003 00:09 13.28 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3
>Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5
>12003 00:16 14.32 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3
>Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 Rg6+ Kf4 Qxc3
>13003 00:31 14.66 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3
>Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 Rh6 Kf5 Qxc3
>14004 02:14 M13 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3
>Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 Qf2 Kh5 Qxh2+ Kg4 Rf4+ Kg5 Qh4+
If it is of any interesst - Chest:
CHEST version 3.19, 18-Dec-1999
Options = -r -S -z 13 -l
Input file: 'doit.inp'
Reading job:
# Mate in ?
W: Kh1 Rg1 Rh5 Pc3 Pd4 Ph2 Ph6 (7)
B: Kh7 Rb2 Rf2 Nb3 Pc4 Pe4 Pf7 (7)
FEN: 8/5p1k/7P/7R/2pPp3/1nP5/1r3r1P/6RK b - -
analysing (mate in 13 moves):
Solution (in 13 moves):
Nb3 - d2
Time (virt) = 38390.716 sec (ca. 639.8 min) (ca. 10.7 hrs)
Nd2 Rg7+ Kh8 ...+11
Rg2 Nf3 ...+9
Rf1+ ...+9
Rh3 Nf3 ...+7
Rf5 Rxf5 ...+6
Rf1 Nxf1 ...+5
Rg8 Kxg8 ...+5
Rb5 Rxb5 ...+4
Rhg5 Nf3 ...+4
Rg6 fxg6 ...+3
Ra1 Nf3 ...+2
Rc1 Nf3 ...+2
Rd1 Nf3 ...+2
Re1 Nf3 ...+2
h3 Rh2+ ...+2
Rb1 Rxb1#
-*- Nf3 ...+6
end of solution tree
Total Time (virt) = 38632.830 sec (ca. 643.9 min) (ca. 10.7 hrs)
Regards
Andreas
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