Author: Mike Byrne
Date: 20:00:32 04/24/04
Go up one level in this thread
On April 24, 2004 at 17:42:30, Uri Blass wrote:
>On April 24, 2004 at 17:06:29, Mike Byrne wrote:
>
>>On April 24, 2004 at 12:51:02, Will Singleton wrote:
>>
>>>[D]rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 16
>>>
>>>Nxf7 is a pretty speculative move, I don't think any other chess program would
>>>play this. Turns out to be crushing, though. Would be amazing if Hydra saw
>>>this tactically.
>>
>>White(1): rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 1
>>
>>White(1): go
>> time surplus 0.00 time limit 166:39 (166:39)/(30)
>> time surplus 0.00 time limit 166:39 (166:39)/(30)
>> depth time score variation (1)
>> 1 0.00 -2.96 1. f5 Bxg5 2. Bxg5 Qxg5 3. fxe6 fxe6
>> 4. gxh5
>> 1 0.00 0.33 1. O-O-O
>> 1-> 0.00 0.33 1. O-O-O
>> 2 0.00 0.24 1. O-O-O c4
>> 2-> 0.02 0.24 1. O-O-O c4
>> 3 0.02 0.26 1. O-O-O Nc6 2. dxc5 Nxc5
>> 3-> 0.03 0.26 1. O-O-O Nc6 2. dxc5 Nxc5 (s=2)
>> 4 0.05 0.18 1. O-O-O cxd4 2. Bxd4 Nc6 3. gxh5 Nxd4
>> 4. Rxd4 gxh5
>> 4-> 0.06 0.18 1. O-O-O cxd4 2. Bxd4 Nc6 3. gxh5 Nxd4
>> 4. Rxd4 gxh5 (s=2)
>> 5 0.08 -1 1. O-O-O
>> 5 0.08 -0.50 1. O-O-O cxd4 2. Rxd4 Nc6 3. Rdd1 Bxg5
>> 4. fxg5 Ndxe5 5. gxh5 gxh5
>> 5 0.13 -0.03 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg3 Nc6
>> 5-> 0.17 -0.03 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg3 Nc6
>> 6 0.22 -0.09 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg2 Bxg5
>> 4. fxg5 Nxe5 5. Bxc5 Rxg5
>> 6 0.42 0.12 1. Nb5 Nc6 2. dxc5 Nxc5 3. O-O-O a6
>> 4. Bxc5 axb5 5. Bxe7 Nxe7 6. gxh5 gxh5
>> 6-> 0.53 0.12 1. Nb5 Nc6 2. dxc5 Nxc5 3. O-O-O a6
>> 4. Bxc5 axb5 5. Bxe7 Nxe7 6. gxh5 gxh5
>> (s=3)
>> 7 0.88 0.06 1. Nb5 Nc6 2. O-O-O cxd4 3. Nxd4 Nxd4
>> 4. Bxd4 Bxg5 5. fxg5 Qxg5+ (s=2)
>> 7 1.14 +1 1. Nxf7!!
>> 7 1.19 0.62 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
>> 4. gxf5 cxd4 5. fxg6+ Kxg6 <HT>
>> 7-> 1.19 0.62 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
>> 4. gxf5 cxd4 5. fxg6+ Kxg6 <HT> (s=4)
>> 8 1.30 +1 1. Nxf7!!
>> 8 1.45 1.18 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 Ke8
>> 4. fxe6 Nf8 5. gxh5 cxd4 (s=3)
>> 8-> 1.61 1.18 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 Ke8
>> 4. fxe6 Nf8 5. gxh5 cxd4
>> 9 2.11 1.09 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 Ke8
>> 4. fxe6 Nf8 5. gxh5 cxd4
>> 9-> 2.28 1.09 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 Ke8
>> 4. fxe6 Nf8 5. gxh5 cxd4
>> 10 4.22 1.25 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8
>> 4. Bxd4 Nf8 5. O-O-O Nxe6 6. Kb1
>> 10-> 4.80 1.25 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8
>> 4. Bxd4 Nf8 5. O-O-O Nxe6 6. Kb1
>> 11 10.55 0.97 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+
>> 4. Rxf2 cxd4 5. fxe6+ Ke7 6. Nxd5+
>> Kxe6 7. Nf4+ Kxe5 8. Nxg6+ Kd6 9. Nxh8
>> Qxh8 10. gxh5
>> 11-> 15.31 0.97 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+
>> 4. Rxf2 cxd4 5. fxe6+ Ke7 6. Nxd5+
>> Kxe6 7. Nf4+ Kxe5 8. Nxg6+ Kd6 9. Nxh8
>> Qxh8 10. gxh5
>> 12 22.22 +1 1. Nxf7!!
>> 12 25.53 1.37 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+
>> 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+
>> Kg7 7. Qe6 dxc3 8. Rf7+ Kh6 9. g7+
>> Kg5 10. gxh8=Q Qxh8
>> 12-> 27.95 1.37 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+
>> 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+
>> Kg7 7. Qe6 dxc3 8. Rf7+ Kh6 9. g7+
>> Kg5 10. gxh8=Q Qxh8
>>? 13 45.02 1/41* 1. Nxf7
>>White(1): ?
>> time=53.20 cpu=185% mat=0 n=45328093 fh=90% nps=852K
>> ext-> chk=1736709 cap=179025 pp=128620 1rep=124260 mate=2772
>> predicted=0 nodes=45328093 evals=17756672 50move=0
>> endgame tablebase-> probes=0 hits=0
>> SMP-> split=598 stop=84 data=5/128 cpu=1:38 elap=53.20
>>
>>
>>
>>White(1): Nxf7
>> time used: 53.20
>>
>>looks pretty sound to me ...
>
>Which program did you use
>
>Crafty19.12(1 cpu) can find it but it is not so speculative like the program
>that you used and does not see a score of more than +1 for white.
>
>older crafty(19.01) needs more time and finds it only with a negative score at
>depth 11 and 0.01 score at depth 12 and it may be interesting to know what
>changes did Bob to teach Crafty to solve it(I guess that the difference is
>result of evaluation changes and not search changes).
>
>
Crafty v19.12 SE [Kasparov] (2 cpus)
SE code enabled
type infox to see extended information
White(1): infox
Crafty v19.12 SE (2 cpus)
Keeper setting 1==yes, 0==no 0
personality name .................. Kasparo
personality setting..................41
queen value..........................900
rook value...........................500
bishop value.........................300
knight value.........................300
pawn value...........................100
book random (0=off)............ .....0
book selection width.................3
delay time limit,(0=off:1=on)........0
draw score setting...................0
search depth.........................0
special edition code (1=off:0=on)....0
time usage setting (0=normal)........30
window beta initial setting..........40
more...
king safety asymmetry................20
king safety scale.............. .....115
king safety tropism..................120
lazy setting.........................60
pass pawn scale......................103
pawn block scale............... .....115
pawn scale..................... .... 102
incheck extension setting............60
mate extension setting...............48
one response extension setting.......46
pawn push extension setting..........45
recapture extension setting..........30
start extension setting..............30
these settings are not out extreme...
the extremes settings are in krafty Morphy and that sees it very fast - but
Morphy does have nore instability in the evaluations as the result of it's
speculative nature:
White(1): kra mor
White(1): new
Crafty v19.12 SE [Morphy] (2 cpus)
SE code enabled
White(1): rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 16
White(1): st 60
search time set to 60.00.
White(1): go
clearing hash tables
time surplus 0.00 time limit 1:00 (1:00)
time surplus 0.00 time limit 1:00 (1:00)
depth time score variation (1)
starting thread 1
1 0.00 0.28 1. O-O-O Bxg5 2. fxg5 cxd4 3. Bxd4
Qxg5+
1-> 0.01 0.28 1. O-O-O Bxg5 2. fxg5 cxd4 3. Bxd4
Qxg5+
2 0.01 0.28 1. O-O-O Bxg5 2. fxg5 cxd4 3. Bxd4
Qxg5+
2-> 0.03 0.28 1. O-O-O Bxg5 2. fxg5 cxd4 3. Bxd4
Qxg5+
3 0.03 0.28 1. O-O-O Bxg5 2. fxg5 cxd4 3. Bxd4
Qxg5+
3 0.05 0.29 1. dxc5 bxc5 2. gxh5 Bxg5 3. fxg5 Nxe5
3-> 0.05 0.29 1. dxc5 bxc5 2. gxh5 Bxg5 3. fxg5 Nxe5
(s=2)
4 0.06 0.29 1. dxc5 bxc5 2. gxh5 Bxg5 3. fxg5 Nxe5
4-> 0.09 0.29 1. dxc5 bxc5 2. gxh5 Bxg5 3. fxg5 Nxe5
5 0.12 0.43 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg3 Nc6
4. h4 Bxg5 5. hxg5
5 0.17 0.59 1. Nxf7 Kxf7 2. f5 exf5 3. gxf5 Bh4+
4. Bf2
5-> 0.17 0.59 1. Nxf7 Kxf7 2. f5 exf5 3. gxf5 Bh4+
4. Bf2 (s=2)
6 0.19 +1 1. Nxf7!!
6 0.22 1.92 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
4. gxf5 g5 5. Nxd5 cxd4 6. Bxd4
6-> 0.25 1.92 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
4. gxf5 g5 5. Nxd5 cxd4 6. Bxd4
7 0.30 +1 1. Nxf7!!
7 0.36 2.61 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
4. gxf5 cxd4 5. fxg6+ Kxg6 6. Bxd4
7-> 0.37 2.61 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
4. gxf5 cxd4 5. fxg6+ Kxg6 6. Bxd4
8 0.55 2.87 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
4. gxf5 g5 5. e6+ Kg7 6. exd7 Nxd7
7. Nxd5 cxd4 8. Bxd4+
8-> 0.59 2.87 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5
4. gxf5 g5 5. e6+ Kg7 6. exd7 Nxd7
7. Nxd5 cxd4 8. Bxd4+
9 1.48 2.97 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 exf5
4. gxf5 g5 5. e6+ Kg8 6. exd7 g4 7.
Qg2 Nxd7 8. Qxd5+
9-> 1.58 2.97 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 exf5
4. gxf5 g5 5. e6+ Kg8 6. exd7 g4 7.
Qg2 Nxd7 8. Qxd5+
10 3.36 2.96 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 exf5
4. gxf5 g5 5. e6+ Kg7 6. exd7 g4 7.
Rg1 Nxd7 8. Nxd5 cxd4 9. Bxd4+
10-> 3.62 2.96 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 exf5
4. gxf5 g5 5. e6+ Kg7 6. exd7 g4 7.
Rg1 Nxd7 8. Nxd5 cxd4 9. Bxd4+
11 16.83 3.14 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8
4. Bxd4 Nf8 5. Qg2 Bh4+ 6. Bf2 Nxe6
7. gxh5
11-> 18.30 3.14 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8
4. Bxd4 Nf8 5. Qg2 Bh4+ 6. Bf2 Nxe6
7. gxh5
12 31.97 3.20 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8
4. Bxd4 Nf8 5. Qf3 Bh4+ 6. Kd1 Qe8
7. e7 Ne6 8. Qxd5
12-> 36.05 3.20 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8
4. Bxd4 Nf8 5. Qf3 Bh4+ 6. Kd1 Qe8
7. e7 Ne6 8. Qxd5
time=1:00 cpu=184% mat=0 n=58971037 fh=92% nps=982K
ext-> chk=3091488 cap=203139 pp=175707 1rep=234439 mate=4013
predicted=0 nodes=58971037 evals=18585538 50move=0
endgame tablebase-> probes=0 hits=0
SMP-> split=412 stop=42 data=4/128 cpu=1:50 elap=1:00
White(1): Nxf7
time used: 1:00
Black(1): infox
Crafty v19.12 SE (2 cpus)
Keeper setting 1==yes, 0==no 0
personality name .................. Morphy
personality setting..................32
queen value..........................950
rook value...........................500
bishop value.........................300
knight value.........................300
pawn value...........................110
book random (0=off)............ .....1
book selection width.................5
delay time limit,(0=off:1=on)........0
draw score setting...................-15
search depth.........................0
special edition code (1=off:0=on)....0
time usage setting (0=normal)........0
window beta initial setting..........40
more...
king safety asymmetry................80
king safety scale.............. .....150
king safety tropism..................120
lazy setting.........................60
pass pawn scale......................120
pawn block scale............... .....120
pawn scale..................... .... 120
incheck extension setting............60
mate extension setting...............48
one response extension setting.......48
pawn push extension setting..........48
recapture extension setting..........48
start extension setting..............30
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