Author: Dieter Buerssner
Date: 09:36:21 08/23/05
Go up one level in this thread
On August 23, 2005 at 10:54:34, Tony Hedlund wrote:
>On August 23, 2005 at 07:06:02, Rick Hagen wrote:
>
>>On August 23, 2005 at 05:43:48, Tony Hedlund wrote:
>>
>>>Here are five positions that give you an indication of how strong your engines
>>>are in endgames.
>>>
>>>White to move, and it's a draw.
>>>
>>>[D] 6R1/P2k4/r7/5N1P/r7/p7/7K/8 w - - 0 1
>>
>>1.Nh6 followed by perpetual check with the rook.
>>Must find an engine that sees the draw yet though...
>>
>
>Yes, that's right! But can an engine find it? GM Morozevitj couldn't.
No draw score (and probably won't find any ever), but at least a good looking
PV, not?
6R1/P2k4/r7/5N1P/r7/p7/7K/8 w - -
Engine: Yace via ssh (700 MB)
von Dieter Buerssner
7.01 0:01 -3.61++ 1.Tg7+ Ke6 2.Sd4+ Kd5 3.a8D+ Txa8
4.Td7+ Ke4 5.Sb3 a2 6.Sa1 Td4
7.Txd4+ Kf3 (988.695) 958
7/25 0:02 -2.35 1.Tg7+ Ke6 2.Sd4+ Ke5 3.Sf3+ Kf4
4.Sg1 Txa7 5.Txa7 Txa7 6.h6 (2.437.600) 1053
7/25 0:03 -2.35 1.Tg7+ Ke6 2.Sd4+ Ke5 3.Sf3+ Kf4
4.Sg1 Txa7 5.Txa7 Txa7 6.h6 (3.290.931) 1077
8/29 0:06 -2.68 1.Tg7+ Ke6 2.Sd4+ Ke5 3.Sc2 Txa7
4.Tg5+ Kf6 5.Tg6+ Kf7 6.Kg3 Tc7
7.Sa1 Ke7 (7.923.605) 1135
8/29 0:08 -2.68 1.Tg7+ Ke6 2.Sd4+ Ke5 3.Sc2 Txa7
4.Tg5+ Kf6 5.Tg6+ Kf7 6.Kg3 Tc7
7.Sa1 Ke7 (9.843.990) 1153
9/31 0:13 -2.73 1.Tg7+ Ke6 2.Sh6 a2 3.Tg6+ Ke5
4.Txa6 Th4+ 5.Kg2 a1D 6.Txa1 Kd6 (15.247.516) 1159
9/31 0:17 -2.73 1.Tg7+ Ke6 2.Sh6 a2 3.Tg6+ Ke5
4.Txa6 Th4+ 5.Kg2 a1D 6.Txa1 Kd6 (19.845.441) 1161 TB:5
10/33 0:29 -2.84 1.Tg7+ Ke6 2.Sh6 a2 3.Tg6+ Ke5
4.Tg5+ Kd6 5.Tg6+ Kc5 6.Tg5+ Kc6
7.a8D+ Kd7 8.Dxa6 Txa6 9.Tg7+ Kd8
10.Tg8+ Ke7 11.Tg7+ Kf6 12.Tg6+ Ke5
13.Txa6 a1T (35.325.702) 1181 TB:5
10/33 0:42 -2.83++ 1.Sh6 a2 2.a8D Txa8 3.Tg7+ Kd6
4.Tg6+ Kc5 5.Tg5+ Kb6 6.Tg6+ Ka7
7.Tg7+ Ka6 8.Tg6+ Ka7 9.Tg7+ Ka6
10.Tg6+ Ka7 (48.739.272) 1152 TB:31
10/33 0:42 -2.83 1.Sh6 a2 2.a8D Txa8 3.Tg7+ Kd6
4.Tg6+ Kc5 5.Tg5+ Kb6 6.Tg6+ Ka7
7.Tg7+ Ka6 8.Tg6+ Kb7 9.Tg7+ Kc6
10.Tg6+ Kd5 11.Tg5+ Ke6 12.Tg6+ Ke7
13.Tg7+ Ke6 (49.055.477) 1152 TB:31
10/33 0:43 -2.83 1.Sh6 a2 2.a8D Txa8 3.Tg7+ Kd6
4.Tg6+ Kc5 5.Tg5+ Kb6 6.Tg6+ Ka7
7.Tg7+ Ka6 8.Tg6+ Kb7 9.Tg7+ Kc6
10.Tg6+ Kd5 11.Tg5+ Ke6 12.Tg6+ Ke7
13.Tg7+ Ke6 (49.877.574) 1154 TB:33
11/33 0:47 -2.75 1.Sh6 a2 2.Tg7+ Ke6 3.Tg6+ Ke5
4.Tg5+ Kf6 5.Tg6+ Ke7 6.Tg7+ Kd6
7.Tg6+ Kc5 8.Tg5+ Kb6 9.Tg6+ Kxa7
10.Tg7+ Kb6 11.Tg6+ Kb7 12.Tg7+ Kc8
13.Tg8+ Kd7 14.Tg7+ (55.058.829) 1154 TB:62
11/35 1:17 -2.75 1.Sh6 a2 2.Tg7+ Ke6 3.Tg6+ Ke5
4.Tg5+ Kf6 5.Tg6+ Ke7 6.Tg7+ Kd6
7.Tg6+ Kc5 8.Tg5+ Kb6 9.Tg6+ Kxa7
10.Tg7+ Kb6 11.Tg6+ Kb7 12.Tg7+ Kc8
13.Tg8+ Kd7 14.Tg7+ (87.413.100) 1132 TB:143
Regards,
Dieter
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