Author: Mike Byrne
Date: 18:59:40 07/09/02
Go up one level in this thread
On July 08, 2002 at 23:58:53, John Merlino wrote:
>On July 08, 2002 at 23:47:08, Jon Dart wrote:
>
>>Yace played the surprising d6! here against Arasan:
>>
>>[D] r1n2rk1/pppqppb1/6p1/1N1P4/4P3/1Q2B1R1/PP2KP1P/3R4 w - -
>>
>>Most versions of Arasan can find this pretty quickly.
>>
>>Curiously, Crafty does not select it, even after 20 minutes on a PIII-733:
>> 6 0.53 0.02 1. Bd4 Bf6 2. Rc3 Qg4+ 3. Kf1 Qxe4
>> 4. Bxf6 exf6 5. Rxc7
>> 6-> 0.66 0.02 1. Bd4 Bf6 2. Rc3 Qg4+ 3. Kf1 Qxe4
>> 4. Bxf6 exf6 5. Rxc7
>> 7 1.17 0.10 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qd3 Rfc8 5. Rdg1
>> 7-> 1.55 0.10 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qd3 Rfc8 5. Rdg1
>> 8 2.28 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qc4 e5 5. Rdg1 Rac8
>> 8 5.77 -0.04 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bg7 4.
>> Kf1 Rad8
>> 8-> 6.78 -0.04 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bg7 4.
>> Kf1 Rad8
>> 9 9.91 -0.03 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bxd4 4.
>> Bxd4 e6 5. dxe6 Qxe6 6. Kf1
>> 9-> 12.96 -0.03 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bxd4 4.
>> Bxd4 e6 5. dxe6 Qxe6 6. Kf1
>> 10 35.70 -0.15 1. Nd4 Nd6 2. Qd3 Qa4 3. a3 Be5 4.
>> Rg5 Bf6 5. Rg4 Qd7
>> 10 47.65 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qc3+ Kg8 5. Rh3 Qg4+ 6. Qf3 Qg5
>> 7. Rg3 Qe5
>> (2) 10-> 1:01 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qc3+ Kg8 5. Rh3 Qg4+ 6. Qf3 Qg5
>> 7. Rg3 Qe5
>> 11 1:14 0.05 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Rc1 Rh8 5. h3 Rh5 6. Qc4 e6 7. dxe6
>> fxe6
>> (2) 11-> 1:38 0.05 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Rc1 Rh8 5. h3 Rh5 6. Qc4 e6 7. dxe6
>> fxe6
>> 12 2:09 -0.04 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qc3+ Kg8 5. Rc1 Qb5+ 6. Kf3 e6 7.
>> dxe6 fxe6+ 8. Kg2 Qh5 9. Rg1
>> (3) 12-> 9:41 -0.04 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
>> 4. Qc3+ Kg8 5. Rc1 Qb5+ 6. Kf3 e6 7.
>> dxe6 fxe6+ 8. Kg2 Qh5 9. Rg1
>> (2) 13 12:00 -0.03 1. Bd4 Nd6 2. Nxd6 cxd6 3. Kf1 Bxd4
>> 4. Rxd4 Rac8 5. Kg2 b5 6. Rd2 Rfe8
>> 7. Qf3 e5 8. dxe6 Qxe6
>>
,snip.
>Chessmaster 9000 on a humble PIII-600 takes 4:27 to select d6:
>
>Time Depth Score Positions Moves
>0:00 1/3 0.50 2248 1.f3 a6 2.Na3 Nd6
>0:00 1/3 0.53 2414 1.Bd4 Bxd4 2.Nxd4 Nd6
>0:00 1/4 0.57 4418 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6
>0:00 1/4 0.59 11691 1.d6 c6 2.Na3 Nxd6 3.Rxg6
>0:00 1/5 0.34 19874 1.d6 Nxd6 2.Nxd6 cxd6 3.Rxg6 Qh3
> 4.Rxg7+ Kxg7 5.Qxb7
>0:00 1/5 0.58 24333 1.Bd4 Bxd4 2.Nxd4 Nd6 3.f3
>0:01 1/6 0.59 58847 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6
> 4.Qc3+ f6 5.f4
>0:02 1/7 0.51 130774 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6
> 4.Qd3 Qa4
>0:04 1/8 0.37 287767 1.Bd4 Nd6 2.Bxg7 Kxg7 3.Nxd6 cxd6
> 4.Qc3+ f6 5.Rdg1 Qb5+ 6.Ke1
>0:06 1/8 0.51 430489 1.f3 Nd6 2.Nxa7 Be5 3.Rg4 Bg7 4.Rc1
> Rfd8
>0:19 1/9 0.45 1287312 1.f3 a6 2.Nd4 Nd6 3.Rc1 Be5 4.Rg4
> Bxh2 5.Qc3 Nb5 6.Nxb5 Qxb5+ 7.Kf2
>0:48 1/10 0.49 3391465 1.f3 Nd6 2.Nxa7 Rfe8 3.a3 Be5 4.Rg4
> Bxh2 5.Qc3 Qa4 6.Rg2
>2:57 2/11 0.45 12225517 1.f3 Nd6 2.Nd4 Rfb8 3.Qc2 Rc8 4.Kf1
> Bxd4 5.Bxd4 c5 6.dxc6ep Qxc6 7.Qxc6
> Rxc6
>4:27 2/11 0.73 18889982 1.d6 Nxd6 2.Nxd6 cxd6 3.Rxg6 Kh8
> 4.Rg5 Qc6 5.Rdg1 Bh6 6.Rh5
>
>jm
the released version of modified "Crafty 18.15 MB" - compiled by yours truly
sees it 67 seconds on a dual Xeon 1.7 Ghz
White(1): go
clearing hash tables
time surplus 0.00 time limit 1000:00 (1000:00)
nss depth time score variation (1)
starting thread 1
7 0.51 0.10 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qd3 Rfc8 5. Rdg1
7-> 0.69 0.10 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qd3 Rfc8 5. Rdg1
8 1.01 0.07 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qc4 Kg8 5. Rdg1 Rac8
8-> 1.70 0.07 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qc4 Kg8 5. Rdg1 Rac8
9 2.33 -0.05 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qc3+ Kg8 5. Rh3 f6 6. Rg1 Kf7
9 10.78 -0.03 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bxd4 4.
Bxd4 e6 5. dxe6 Qxe6 6. Kf1
9-> 10.80 -0.03 1. Nd4 Nb6 2. Qc2 Be5 3. f4 Bxd4 4.
Bxd4 e6 5. dxe6 Qxe6 6. Kf1
10 26.51 -0.15 1. Nd4 Nd6 2. Qd3 Qa4 3. a3 Be5 4.
Rg5 Bf6 5. Rg4 Qd7
10 34.40 -0.06 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qc3+ Kg8 5. Rh3 Qg4+ 6. Qf3 Qg5
7. Rg3 Qe5
10 50.95 -0.03 1. d6 Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7
4. Rg5 Qc6 5. Rdg1 Bh6 6. R5g4
(3) 10-> 54.50 -0.03 1. d6 Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7
4. Rg5 Qc6 5. Rdg1 Bh6 6. R5g4
11 1:07 ++ 1. d6!!
11-> 1:29 0.31 1. d6 Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7
4. Rg5 Qc6 5. Rdg1 Bh6 6. R5g4
12 2:20 ++ 1. d6!!
12 3:08 0.82 1. d6 Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7
4. Rg5 Bh6 5. Qb5 Qxb5+ 6. Rxb5 Bxe3
7. Kxe3 Rab8 8. Rg5 Rbc8
12-> 3:21 0.82 1. d6 Nxd6 2. Nxd6 cxd6 3. Rxg6 Kh7
4. Rg5 Bh6 5. Qb5 Qxb5+ 6. Rxb5 Bxe3
7. Kxe3 Rab8 8. Rg5 Rbc8
time=3:21 cpu=394% mat=0 n=214213240 fh=90% nps=1061k
ext-> chk=7444505 cap=475682 pp=146001 pc=138132
ext-> 1rep=510620 mate=14220 fut=0 ft=2723570
predicted=0 nodes=214213240 evals=46227073
endgame tablebase-> probes done=0 successful=0
SMP-> split=485 stop=92 data=8/32 cpu=13:15 elap=3:21
my yet to be released modified "Crafty 18.15 MB II" sees it in 39 seconds on the
same hardware
White(1): go
time surplus 0.00 time limit 100:00 (100:00)
nss depth time score variation (1)
(4) 5-> 0.22 -0.18 1. Bd4 Bxd4 2. Nxd4 Nb6 3. Qf3 Rad8
(3) 6 0.29 -0.10 1. Bd4 Bh6 2. Be5 Nd6 3. Bxd6 exd6
4. Qc4
6-> 0.36 -0.10 1. Bd4 Bh6 2. Be5 Nd6 3. Bxd6 exd6
4. Qc4
7 0.61 -0.03 1. Bd4 Bxd4 2. Nxd4 Nb6 3. Qf3 Nc4
4. Qf5 Qd6
7-> 0.73 -0.03 1. Bd4 Bxd4 2. Nxd4 Nb6 3. Qf3 Nc4
4. Qf5 Qd6
8 1.37 -0.08 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qc4 Rfc8 5. Qd4+ Kg8 6. Rdg1
8-> 2.12 -0.08 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Qc4 Rfc8 5. Qd4+ Kg8 6. Rdg1
9 2.95 -0.03 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Rc1 Rh8 5. Qc3+ Kg8 6. Rg2 Rh4
(3) 9-> 5.09 -0.03 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Rc1 Rh8 5. Qc3+ Kg8 6. Rg2 Rh4
(2) 10 7.50 0.01 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Rc1 Kg8 5. Qd3 e5 6. dxe6 Qxe6 7.
Qd5 Qe7
(2) 10-> 12.45 0.01 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Rc1 Kg8 5. Qd3 e5 6. dxe6 Qxe6 7.
Qd5 Qe7
11 17.84 -0.03 1. Bd4 Nd6 2. Nxd6 cxd6 3. Bxg7 Kxg7
4. Kf1 Rac8 5. Kg1 Rh8 6. Qd3 e5 7.
Qf3
11 39.23 ++ 1. d6!!
11 51.23 0.38 1. d6 cxd6 2. Rxg6 Kh8 3. Rg3 a6 4.
Nd4 Bf6 5. Bh6 Rg8 6. Qxf7 Rxg3 7.
hxg3 Qg4+ 8. f3 Qxg3
11-> 55.03 0.38 1. d6 cxd6 2. Rxg6 Kh8 3. Rg3 a6 4.
Nd4 Bf6 5. Bh6 Rg8 6. Qxf7 Rxg3 7.
hxg3 Qg4+ 8. f3 Qxg3
12 1:31 0.61 1. d6 cxd6 2. Rxg6 Kh8 3. Rg3 a6 4.
Nd4 Be5 5. f4 Bf6 6. Qd5 e5 7. fxe5
Bxe5
12-> 1:43 0.61 1. d6 cxd6 2. Rxg6 Kh8 3. Rg3 a6 4.
Nd4 Be5 5. f4 Bf6 6. Qd5 e5 7. fxe5
Bxe5
time=1:43 cpu=199% mat=0 n=98712756 fh=91% nps=956K
ext-> chk=3763997 caps=230773 pp=82175
ext-> 1rep=241649 mate=7922
predicted=0 nodes=98712756 evals=19718860
endgame tablebase-> probes done=0 successful=0
SMP-> split=515 stop=73 data=7/64 cpu=3:26 elap=1:43
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