Author: Slater Wold
Date: 14:39:19 03/16/02
Go up one level in this thread
On March 16, 2002 at 15:46:25, Will Singleton wrote:
>On March 16, 2002 at 15:02:00, Mogens Larsen wrote:
>
>>On March 16, 2002 at 14:31:22, Will Singleton wrote:
>>
>>>On March 16, 2002 at 13:35:51, Mogens Larsen wrote:
>>>
>>>>[D]k1q1bbrr/1p3pp1/p7/5n1n/PP2N2p/1NP5/1BB1Q1PP/2R2R1K b - -
>>>>
>>>>Regards,
>>>>Mogens
>>>
>>>Yace gets Bb5 in 34 seconds, amd 1.6ghz.
>>
>>The newspaper has an interesting (IMO) mate, even though black can resist
>>better.
>>
>>1... Bb5 2. axb5 Nhg3+ 3. Nxg3 Nxg3+ 4. hxg3 hxg3+ 5. Kg1
>>Bc5+ 6. Nxc5 Rh1+ 7. Kxh1 Rh8+ 8. Kg1 Rh1+ 9. Kxh1 Qh8+
>>10. Kg1 Qh2#
>>
>
>Yes, it's an interesting mate. Of course, 2.axb5 isn't best (as you mention).
>
>btw, none of the amateur programs I've tried so far (except Yace) have any clue
>about the mate. Be interesting to see if the commercials can beat Yace at this.
>
>Mildly interesting sidebar: Sjeng gives a +3 eval after the following position
>(starting with Ng3+, not Bb5), which I guess is due to the pawns. Looks like a
>serious mis-eval. Most other progs, inc mine, give about +0.6.
Crafty 18.13 on my Dual AMD 1.6Ghz:
White(1): setboard k1q1bbrr/1p3pp1/p7/5n1n/PP2N2p/1NP5/1BB1Q1PP/2R2R1K b - -
Black(1): go
clearing hash tables
time surplus 0.00 time limit 3:00 (3:00)
nss depth time score variation (1)
starting thread 1
6 0.13 1.34 1. ... Bxa4 2. Ra1 Bd7 3. Qd3 Rh6 4.
Nbc5
6-> 0.19 1.34 1. ... Bxa4 2. Ra1 Bd7 3. Qd3 Rh6 4.
Nbc5
7 0.63 1.36 1. ... Bxa4 2. Nd4 Bxc2 3. Rxf5 Bxe4
4. Qxe4 Nf6 5. Qd3
(2) 7-> 1.02 1.36 1. ... Bxa4 2. Nd4 Bxc2 3. Rxf5 Bxe4
4. Qxe4 Nf6 5. Qd3
8 3.10 1.18 1. ... Bxa4 2. Qf3 Nd6 3. Ra1 Bb5 4.
Rfd1 Nc4 5. Bc1
8-> 4.25 1.18 1. ... Bxa4 2. Qf3 Nd6 3. Ra1 Bb5 4.
Rfd1 Nc4 5. Bc1
9 8.58 1.12 1. ... Bxa4 2. Nd4 Bxc2 3. Rxc2 Nd6
4. b5 Qe8 5. Nxd6 Bxd6 6. bxa6 Qxe2
7. Rxe2
(2) 9-> 12.72 1.12 1. ... Bxa4 2. Nd4 Bxc2 3. Rxc2 Nd6
4. b5 Qe8 5. Nxd6 Bxd6 6. bxa6 Qxe2
7. Rxe2
10 24.83 1.05 1. ... Bxa4 2. Kg1 Nd6 3. Ra1 Qe8 4.
Rfe1 Bxb3 5. Bxb3 Nxe4 6. Qxe4 Qxe4
7. Rxe4
10-> 29.22 1.05 1. ... Bxa4 2. Kg1 Nd6 3. Ra1 Qe8 4.
Rfe1 Bxb3 5. Bxb3 Nxe4 6. Qxe4 Qxe4
7. Rxe4
11 46.82 1.05 1. ... Bxa4 2. Nd4 Bxc2 3. Rxc2 Nd6
4. b5 a5 5. Ng5 Rh6 6. Kg1 Qc7 7. Rd2
11 2:04 ++ 1. ... Bb5!!
11 2:20 -2.33 1. ... Bb5 2. Qd2 Nhg3+ 3. Kg1 Bxf1
4. Rxf1 Nxf1 5. Kxf1 h3 6. g3 <HT>
(4) 11-> 2:20 -2.33 1. ... Bb5 2. Qd2 Nhg3+ 3. Kg1 Bxf1
4. Rxf1 Nxf1 5. Kxf1 h3 6. g3 <HT>
(3) 12 2:28 -2.27 1. ... Bb5 2. Qd2 Nhg3+ 3. Nxg3 Nxg3+
4. Kg1 Nxf1 5. Rxf1 Bxf1 6. Kxf1 h3
7. g3 Qc4+ 8. Kg1 Rh5
(2) 12-> 2:38 -2.27 1. ... Bb5 2. Qd2 Nhg3+ 3. Nxg3 Nxg3+
4. Kg1 Nxf1 5. Rxf1 Bxf1 6. Kxf1 h3
7. g3 Qc4+ 8. Kg1 Rh5
time=3:00 cpu=219% mat=0 n=248998721 fh=91% nps=1381k
ext-> chk=7740733 cap=715566 pp=304214 1rep=778151 mate=56978
predicted=0 nodes=248998721 evals=0
endgame tablebase-> probes done=0 successful=0
hashing-> trans/ref=28% pawn=99% used=99%
SMP-> split=734 stop=83 data=9/32 cpu=6:35 elap=3:00
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