Author: Mike Byrne
Date: 21:09:49 02/24/03
Go up one level in this thread
On February 24, 2003 at 13:01:44, m.d.hurd wrote:
>On February 24, 2003 at 10:36:57, John Wentworth2 wrote:
>
>>Below is a chess problem from the 1986 fall/winter edition of Computer Chess
>>Reports.
>>
>>The dedicated units of the time(outlined below) were unable to solve it. I am
>>sure todays programs could find it quickly.
>>
>>Mephisto "S"
>>Avant-Garde
>>Expert 6.0
>>Mephisto III
>>Forte
>>Quattro 4.0
>>Turbostar 540+
>>Par Excellence/Avant-Garde 2100
>>Excellence 4.0
>>
>>The article also mentioned they gave the problem to Garry Kasparov but it
>>doesn't say if he solved it.
>>
>>White to move, Mate in 10
>>
>>8/8/4k3/2K1N1B1/5Pp1/8/2B2P1p/6n1 w
>>
>>
>>SOLUTION:
>>
>>1. Ba4 Kf5 2.Bd7+ Ke4 3.Be8 Kf5 4.Bg6+ Ke6 5.Bh5 Kf5 6.Bg4+ Ke4 7.Bd1 Kf5 8.Bc2+
>>Ke6 9.f5+ Ke5 10.f4 mate
>
>
>I gave it to Fritz 8 who solved it in 0 seconds !!!
>
>New game
>
[d]8/8/4k3/2K1N1B1/5Pp1/8/2B2P1p/6n1 w - - 0 1
>
>Analysis by Fritz 8:
>
>1.Ba4 Kf5 2.Bd7+ Ke4 3.Be8 Kf5 4.Bg6+ Ke6 5.Bh5 Kf5
>+- (#10) Depth: 9/36 00:00:00 587kN
>
>
>Regards
>
>Mike
trivial for today's programs and hardware
standard in a few seconds crafty, Crafty morphy in less than 1 second
White(1): st 6000
search time set to 6000.00.
White(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 100:00 (100:00)
depth time score variation (1)
starting thread 1
2-> 0.00 6.30 1. Bb3+ Kf5 2. Bd5
3 0.00 -- 1. Bb3+
3 0.01 5.81 1. Bb3+ Kf5 2. Bd5 Nf3
3 0.01 5.89 1. Be4 Nf3 2. Bxf3 gxf3
3 0.01 6.19 1. Ba4 Kf5 2. Bd7+ Ke4
3-> 0.01 6.19 1. Ba4 Kf5 2. Bd7+ Ke4
4 0.01 6.36 1. Ba4 Kf5 2. Bd7+ Ke4 3. Bc6+ Kf5
4. Kd6
4-> 0.03 6.36 1. Ba4 Kf5 2. Bd7+ Ke4 3. Bc6+ Kf5
4. Kd6
5 0.03 -- 1. Ba4
5 0.03 5.95 1. Ba4 Kf5 2. Bd7+ Ke4 3. Bc6+ Kf5
4. Bh1 Ne2
5 0.03 ++ 1. Bb3+!!
5 0.03 6.80 1. Bb3+ Kf5 2. Kd6 Ke4 3. Bc2+ Kd4
4. Nc6+ Kc3 5. Be4
5 0.03 7.25 1. Be4 Nf3 2. Nxf3 gxf3 3. Bxf3
5-> 0.05 7.25 1. Be4 Nf3 2. Nxf3 gxf3 3. Bxf3 (s=5)
6 0.05 7.25 1. Be4 Nf3 2. Bd5+ Kf5 3. Nxf3 gxf3
4. Bxf3 Kg6 (s=4)
6 0.06 7.27 1. Bb3+ Kf5 2. Kd6 Ke4 3. Nxg4 h1=Q
4. Bd5+ Kf5 5. Bxh1 Kxg4 (s=3)
6-> 0.06 7.27 1. Bb3+ Kf5 2. Kd6 Ke4 3. Nxg4 h1=Q
4. Bd5+ Kf5 5. Bxh1 Kxg4 (s=2)
7 0.08 ++ 1. Bb3+!!
7 0.09 8.05 1. Bb3+ Kf5 2. Kd6 h1=Q 3. Be6+ Ke4
4. Bd5+ Kf5 5. Bxh1 Nh3 6. f3 gxf3
7. Nxf3 Nxf4
7 0.11 8.79 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Ke3
7-> 0.12 8.79 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Ke3 (s=7)
8 0.15 9.11 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Ke4 6. f5 Nd4
(s=6)
8-> 0.28 9.11 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Ke4 6. f5 Nd4
(s=3)
9 0.31 9.30 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bf7+ Kf5 6. Kd6 Ke4 7.
Nxg4 Ne2 8. Bg6+ Kf3 9. Nxh2+ Kxf2
(s=2)
9-> 0.67 9.30 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bf7+ Kf5 6. Kd6 Ke4 7.
Nxg4 Ne2 8. Bg6+ Kf3 9. Nxh2+ Kxf2
(s=9)
10 0.70 ++ 1. Ba4!!
10-> 2.81 9.69 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bf7+ Kf5 6. Kd6 Ke4 7.
Nxg4 Ne2 8. Bg6+ Kf3 9. Nxh2+ Kxf2
(s=6)
11 2.84 ++ 1. Ba4!!
11 3.42 Mat10 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bh5 Kf5 6. Bxg4+ Ke4 7.
Bd1 Kf5 8. Bc2+ Ke6 9. f5+ Kxe5 10.
f4# (s=5)
11-> 12.31 Mat10 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bh5 Kf5 6. Bxg4+ Ke4 7.
Bd1 Kf5 8. Bc2+ Ke6 9. f5+ Kxe5 10.
f4# (s=4)
? 12 15.01 1/30* 1. Ba4
White(1): ?
time=15.22 cpu=104% mat=6 n=13099172 fh=99% nps=860k
ext-> chk=683553 cap=12192 pp=21144 1rep=24707 mate=2552
predicted=0 nodes=13099172 evals=1659005
endgame tablebase-> probes done=1185 successful=1185
SMP-> split=630 stop=22 data=7/32 cpu=15.88 elap=15.22
mate in 10 moves.
kibitz mate in 10 moves.
White(1): Ba4
time used: 15.23
Black(1): new
White(1): kra mor
queen value..........................950
rook value...........................500
bishop value.........................300
knight value.........................300
pawn value...........................110
White(1): 8/8/4k3/2K1N1B1/5Pp1/8/2B2P1p/6n1 w - - 0 1
White(1): go
end-game phase
time surplus 0.00 time limit 100:00 (100:00)
depth time score variation (1)
2-> 0.00 5.75 1. Bb3+ Kf5 2. Bd5
3 0.00 -- 1. Bb3+
3 0.00 5.25 1. Bb3+ Kf5 2. Bd5 Nf3
3 0.00 5.40 1. Be4 Nf3 2. Bxf3 gxf3
3 0.00 5.65 1. Kb5 Kf5 2. Bd7+ Ke4
3-> 0.00 5.65 1. Ba4 Kf5 2. Bd7+ Ke4
4 0.02 5.82 1. Ba4 Kf5 2. Bd7+ Ke4 3. Bc6+ Kf5
4. Bh1
4-> 0.02 5.82 1. Ba4 Kf5 2. Bd7+ Ke4 3. Bc6+ Kf5
4. Bh1
5 0.02 5.46 1. Ba4 Kf5 2. Bd7+ Ke4 3. Bc6+ Kf5
4. Bh1 Ne2
5 0.02 ++ 1. Bb3+!!
5 0.03 6.22 1. Bb3+ Kf5 2. Kd6 Ke4 3. Bc2+ Kd4
4. Nc6+ Kc3 5. Be4
5 0.03 6.87 1. Be4 Nf3 2. Nxf3 gxf3 3. Bxf3
5-> 0.03 6.87 1. Be4 Nf3 2. Nxf3 gxf3 3. Bxf3 (s=5)
6 0.03 ++ 1. Be4!!
6 0.03 7.41 1. Be4 Nf3 2. Nxf3 gxf3 3. f5+ Ke5
4. Bf4+ Kxf4 (s=4)
6 0.05 7.51 1. Bb3+ Kf5 2. Kd6 Ke4 3. Nxg4 h1=Q
4. Bd5+ Kf5 5. Bxh1 Kxg4 (s=2)
6-> 0.06 7.51 1. Bb3+ Kf5 2. Kd6 Ke4 3. Nxg4 h1=Q
4. Bd5+ Kf5 5. Bxh1 Kxg4 (s=2)
7 0.08 7.63 1. Bb3+ Kf5 2. Kd6 h1=Q 3. Be6+ Ke4
4. Bd5+ Kf5 5. Bxh1 Nh3 6. Bd5 Nxg5
7. fxg5 Kxg5
7 0.10 ++ 1. Ba4!!
7 0.11 8.91 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Kg3 6. Nf1+ Kf3
7-> 0.13 8.91 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Kg3 6. Nf1+ Kf3
(s=3)
8 0.14 8.91 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Kg3 6. Nf1+ Kf3
(s=2)
8-> 0.27 8.91 1. Ba4 Kf5 2. Bd7+ Ke4 3. Nxg4 Ne2
4. f3+ Kxf3 5. Nxh2+ Kg3 6. Nf1+ Kf3
(s=14)
9 0.35 ++ 1. Ba4!!
9 0.38 9.31 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bf7+ Kf5 6. Kd6 Ke4 7.
Nxg4 Ne2 8. Bg6+ Kf3 9. Nxh2+ Kxf2
(s=13)
9-> 0.70 9.31 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bf7+ Kf5 6. Kd6 Ke4 7.
Nxg4 Ne2 8. Bg6+ Kf3 9. Nxh2+ Kxf2
(s=9)
10 0.75 ++ 1. Ba4!!
10 0.86 Mat10 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bh5 Kf5 6. Bxg4+ Ke4 7.
Bd1 Kf5 8. Bc2+ Ke6 9. f5+ Kxe5 10.
f4# (s=8)
10-> 1.89 Mat10 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bh5 Kf5 6. Bxg4+ Ke4 7.
Bd1 Kf5 8. Bc2+ Ke6 9. f5+ Kxe5 10.
f4# (s=6)
11 3.47 Mat10 1. Ba4 Kf5 2. Bd7+ Ke4 3. Be8 Kf5 4.
Bg6+ Ke6 5. Bh5 Kf5 6. Bxg4+ Ke4 7.
Bd1 Kf5 8. Bc2+ Ke6 9. f5+ Kxe5 10.
f4# (s=5)
11 7.77 30/30* 1. Kc4
White(1): ?
time=7.94 cpu=145% mat=6 n=10490538 fh=99% nps=1321k
ext-> chk=546719 cap=8470 pp=20498 1rep=19888 mate=2221
predicted=0 nodes=10490538 evals=1158896
endgame tablebase-> probes done=1387 successful=1387
SMP-> split=779 stop=27 data=8/32 cpu=11.55 elap=7.94
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