Author: Mihaly Szalai
Date: 10:40:17 12/08/03
Go up one level in this thread
On December 08, 2003 at 11:48:50, Steve Maughan wrote:
>Mihaly,
>
>>White wins.
>>
>>[D]8/p4p1P/P4P2/8/1p4p1/pP4Pp/2K4P/k7 w - - 0 1
>>
>>
>>1. h8=N! a2 2. Ng6 fxg6 3. f7 g5 4. Kd3 Kb2 5. f8=B!
>
>A tough one. I tested many engines (Anaconda, Crafty, Tiger 15, Junior 8, Fritz
>8, Hiarcs 9, Shredder 7.04, Ruffian 1.0.5, Goliath Nemesis, List 5.04) and the
>only one to solve within a minute was YACE.
>
>Analysis by Yace Paderborn:
>
>1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qxa7
> +- (7.91) Depth: 1 00:00:00
> ± (1.37) Depth: 4 00:00:00
>1.h8N a2 2.Ng6 fxg6 3.f7 g5 4.f8Q
> +- (4.18) Depth: 4 00:00:00
> = (0.00) Depth: 6/13 00:00:00 2kN
>1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Qc2+ 6.Kxb4 Qxb3+ 7.Ka5 Qc3+
>8.Kb6 Ka1 9.Qd7 Qxf6+ 10.Kc7 Qxa6 11.Qxg4 Qh6
> = (0.04) Depth: 6/13 00:00:00 2kN
> = (0.14) Depth: 18/36 00:00:31 27538kN
>1.h8N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb2 5.f8B a1Q 6.Bg7+ Kb1 7.Bxa1 Kxa1 8.Kc4 Kb1
>9.Kxb4 Kb2 10.Kb5 Kxb3 11.Kc6 Kc4
> = (0.15) Depth: 18/36 00:00:31 27943kN
> ± (0.84) Depth: 20/37 00:00:58 51128kN
>
>(Maughan, Paoli 08.12.2003, AMD XP2600 with 64 Mb Hash)
Thanks.
That is strange. I was able to reproduce your Yace result under Arena,
but under the Fritz GUI with the wb2uci adapter Yace is much slower.
(Only Depth 17 in 12 minutes.)
(Celeron 1.7 GHz, 64 MB hash.)
Yace Paderborn WB2 65 MB (under Arena):
1 00:00 7,91 t 1.h8=Q {921}
1 00:00 7,91 . 1.h8=Q {921}
2 00:00 7,74 t 1.h8=Q a2 2.Kd3 {921}
2 00:00 7,74 . 1.h8=Q a2 2.Kd3 {921}
3 00:00 7,76 t 1.h8=Q a2 2.Kd3 Kb1 {921}
3 00:00 7,76 . 1.h8=Q a2 2.Kd3 Kb1 {921}
4 00:00 3,74 -- 1.h8=Q a2 2.Kd3 Kb1 3.Qf8 a1=Q {0}
4 00:00 1,40 -- 1.h8=Q a2 2.Kd3 Kb1 3.Qb8 a1=Q 4.Qxa7 {80}
4 00:00 1,37 t 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxa7 {80}
4 00:00 4,18 t+ 1.h8=N Ka2 2.Nxf7 Ka1 {340}
4 00:00 4,18 t 1.h8=N Ka2 2.Nxf7 Ka1H {340}
4 00:00 4,18 . 1.h8=N Ka2 2.Nxf7 Ka1 {340}
5 00:00 4,25 t 1.h8=N Ka2 2.Nxf7 Ka1 3.Ne5 {340}
5 00:00 4,25 . 1.h8=N Ka2 2.Nxf7 Ka1 3.Ne5 {340}
6 00:00 2,94 -- 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd2 Kb1 5.f8=Q a1=Q 6.Qxb4
{0}
6 00:00 0,18 -- 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb1 5.f8=Q a1=Q 6.Qxb4
{0}
6 00:00 0,00 t 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.f8=Q {841}
6 00:00 0,04 t+ 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 Kb1
6 00:00 1,41 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 {80}
6 00:00 1,41 . 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 {80}
7 00:00 1,36 t 1.h8=Q a2 2.Kd2 Kb2 3.Qa8 a1=QH 4.Qxa7H Kb1H {80}
7 00:00 1,36 . 1.h8=Q a2 2.Kd2 Kb2 3.Qa8 a1=Q 4.Qxa7 Kb1 {80}
8 00:00 1,12 t 1.h8=Q a2 2.Kd2 Kb2 3.Qa8 a1=Q 4.Qxa7 Qh1 5.Qxf7 {160}
8 00:00 1,12 . 1.h8=Q a2 2.Kd2 Kb2 3.Qa8 a1=Q 4.Qxa7 Qh1 5.Qxf7 {160}
9 00:00 0,72 -- 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Ke2 Qxa6+ 5.Qb5 {-80}
9 00:00 0,31 t 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qe5+ Kb1 5.Qxa1+ Kxa1H {0}
9 00:00 0,31 . 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qe5+ Kb1 5.Qxa1+ Kxa1 {0}
10 00:00 0,27 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qd1+ 5.Ke4 Qf3+ 6.Ke5
{80}
10 00:00 0,27 . 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qd1+ 5.Ke4 Qf3+ 6.Ke5
{80}
11 00:00 0,28 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd7
Qxb3+ 7.Kd4 {0}
11 00:00 0,28 . 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd7
Qxb3+ 7.Kd4 {0}
12 00:00 0,28 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd7
Qxb3+ 7.Kd4 {0}
12 00:00 0,28 . 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd7
Qxb3+ 7.Kd4 {0}
13 00:01 0,23 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4
Qxb3+ 7.Kb5 Qa4+ 8.Kb6 {0}
13 00:01 0,23 . 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4
Qxb3+ 7.Kb5 Qa4+ 8.Kb6 {0}
14 00:01 0,23 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4
Qxb3+ 7.Kb5 Qa4+ 8.Kb6 b3H 9.Qxa4+H Kxa4H {0}
14 00:02 0,23 . 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4
Qxb3+ 7.Kb5 Qa4+ 8.Kb6 b3 9.Qxa4+ Kxa4 {0}
15 00:05 0,09 t 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxb4 Qc1+ 5.Ke2 Qh1 6.Qd4+
Kxb3 7.Qxa7 Qxh2+ 8.Qf2 Qh1 9.a7H Qd5H {0}
15 00:06 0,09 . 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxb4 Qc1+ 5.Ke2 Qh1 6.Qd4+
Kxb3 7.Qxa7 Qxh2+ 8.Qf2 Qh1 9.a7 Qd5 {0}
16 00:11 0,00 t 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxb4 Qxa6 5.Qxg4 Qd6+
6.Ke3 Qe5+ 7.Kf2 Qxf6+ 8.Ke2 Qe5+ 9.Kd1 Qd5+ 10.Ke2H {0}
16 00:13 0,00 . 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxb4 Qxa6 5.Qxg4 Qd6+
6.Ke3 Qe5+ 7.Kf2 Qxf6+ 8.Ke2 Qe5+ 9.Kd1 Qd5+ 10.Ke2 {0}
17 00:20 0,06 t 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxb4 Qc1+ 5.Ke2 Qh1 6.Qd4+
Kxb3 7.Qf2 Kc4 8.Qxa7 Qxh2+ 9.Qf2 Qh1 10.Qf4+H Kb5H 11.Qxg4H {80}
17 00:23 0,06 . 1.h8=Q a2 2.Kd2 Kb2 3.Qb8 a1=Q 4.Qxb4 Qc1+ 5.Ke2 Qh1 6.Qd4+
Kxb3 7.Qf2 Kc4 8.Qxa7 Qxh2+ 9.Qf2 Qh1 10.Qf4+ Kb5 11.Qxg4 {80}
18 01:05 0,27 t 1.h8=Q a2 2.Kd3 Kb2 3.Qb8 a1=Q 4.Qxa7 Qf1+ 5.Ke4 Qg2+ 6.Kf4
Qxh2 7.Kxg4 Qe2+ 8.Kxh3 Qf1+ 9.Kg4 Qxf6 10.Qd7 Qg7+ 11.Kf3 Kxb3 {0}
18 01:06 0,28 t+ 1.h8=N Ka2 2.Nxf7 Ka1 3.Ne5 a2 4.Kd3 Kb2 5.f7 a1=Q 6.f8=Q
Qxa6+ 7.Ke4 Qe2+ 8.Kd4 Qxh2 9.Qxb4 Qf2+ 10.Ke4 Qxg3 11.Kf5 Qxb3 12.Qxg4H {180}
18 01:06 0,46 ++ 1.h8=N Ka2 2.Nxf7 Ka1 3.Ne5 a2 4.Kd3 Kb2 5.f7 a1=Q 6.f8=Q
Qxa6+ 7.Ke4 Qe2+ 8.Kd4 Ka2
18 01:09 0,67 t 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb2 5.f8=B a1=Q 6.Bg7+
Ka2 7.Bxa1 Kxa1 8.Kc4 Ka2 9.Kxb4 Kb2 10.Kb5 Kxb3H 11.Kc6H Kc4H {-80}
18 01:17 0,67 . 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb2 5.f8=B a1=Q 6.Bg7+
Ka2 7.Bxa1 Kxa1 8.Kc4 Ka2 9.Kxb4 Kb2 10.Kb5 Kxb3 11.Kc6 Kc4 {-80}
19 01:20 0,67 t 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb2 5.f8=B a1=Q 6.Bg7+
Kb1 7.Bxa1 {270}
19 01:52 0,67 . 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb2 5.f8=B a1=Q 6.Bg7+
Kb1 7.Bxa1 {270}
20 01:56 0,84 t 1.h8=N a2 2.Ng6 fxg6 3.f7 g5 4.Kd3 Kb2 5.f8=B a1=Q 6.Bg7+
Ka2 7.Bxa1 Kxa1 8.Kc4 Ka2H 9.Kxb4H Kb2H 10.Kb5H Kxb3H 11.Kc6H Kc4H 12.Kb7H Kd5H
13.Kxa7H Kc6H {0}
8/p4p1P/P4P2/8/1p4p1/pP4Pp/2K4P/k7 w - - 0 1
Analysis by Yace Paderborn (under Fritz):
1.h8Q
+- (7.91) Depth: 1 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 1 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00 5kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00 5kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00 5kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 Kb1
= (0.04) Depth: 6 00:00:00 5kN
1.h8Q a2 2.Kd3 Kb2 3.Qa8 a1Q 4.Qxa7
+- (1.41) Depth: 6 00:00:00 8kN
1.h8Q a2 2.Kd3 Kb2 3.Qa8 a1Q 4.Qxa7
+- (1.41) Depth: 6 00:00:00 13kN
1.h8Q a2 2.Kd2 Kb2 3.Qa8 a1Q 4.Qxa7 Kb1
± (1.36) Depth: 7 00:00:00 15kN
1.h8Q a2 2.Kd2 Kb2 3.Qa8 a1Q 4.Qxa7 Kb1
± (1.36) Depth: 7 00:00:00 24kN
1.h8Q a2 2.Kd3 Kb2 3.Qh6 a1Q 4.Kc4
± (0.96) Depth: 8 00:00:00 36kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qxa1+ Kxa1
? (0.42) Depth: 8 00:00:00 50kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qxa1+ Kxa1
? (0.42) Depth: 8 00:00:00 81kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qxa1+ Kxa1
? (0.31) Depth: 9 00:00:00 122kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qxa1+ Kxa1
? (0.31) Depth: 9 00:00:00 180kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qe1+ Ka2 6.Qxa1+ Kxa1
? (0.31) Depth: 10 00:00:00 308kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qe1+ Ka2 6.Qxa1+ Kxa1
? (0.31) Depth: 10 00:00:01 513kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qe1+ Ka2 6.Qxa1+ Kxa1 7.Ke3
? (0.43) Depth: 11 00:00:01 857kN
1.h8Q a2 2.Kd2 Kb2 3.Qb8 a1Q 4.Qe5+ Kb1 5.Qe1+ Ka2 6.Qxa1+ Kxa1 7.Ke3
? (0.43) Depth: 11 00:00:02 1287kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd7 Qxb3+ 7.Kd4
? (0.28) Depth: 12 00:00:06 2871kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd7 Qxb3+ 7.Kd4
? (0.28) Depth: 12 00:00:09 4565kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4 Qxb3+ 7.Kb5 Qa4+ 8.Kb6
= (0.23) Depth: 13 00:00:16 7990kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4 Qxb3+ 7.Kb5 Qa4+ 8.Kb6
= (0.23) Depth: 13 00:00:24 12115kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4 Qxb3+ 7.Kb5 Qa4+ 8.Kb6
= (0.23) Depth: 14 00:00:42 21872kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Ka3 6.Qd4 Qxb3+ 7.Kb5 Qa4+ 8.Kb6
= (0.23) Depth: 14 00:01:02 33118kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Qc2+ 6.Kb5 Qd3+ 7.Kxb4 Qxb3+
8.Ka5 Qc3+ 9.Kb6 Qxf6+
? (0.33) Depth: 15 00:01:40 54514kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Qc2+ 6.Kb5 Qd3+ 7.Kxb4 Qxb3+
8.Ka5 Qc3+ 9.Kb6 Qxf6+
? (0.33) Depth: 15 00:02:30 83047kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Qc2+ 6.Kb5 Qd3+ 7.Kxb4 Qxb3+
8.Ka5 Qd5+ 9.Kb6 Qe6+
? (0.33) Depth: 16 00:04:06 138596kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qb1+ 5.Kc4 Qc2+ 6.Kb5 Qd3+ 7.Kxb4 Qxb3+
8.Ka5 Qd5+ 9.Kb6 Qe6+
? (0.33) Depth: 16 00:06:25 220072kN
1.h8Q a2 2.Kd3 Kb2 3.Qb8 a1Q 4.Qxa7 Qd1+ 5.Ke4 Qc2+ 6.Kf4 Qxh2 7.Kxg4 Qe2+
8.Kxh3 Qf1+ 9.Kg4 Qxf6
= (0.18) Depth: 17 00:12:01 410200kN
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