Author: Jonas Cohonas
Date: 05:06:54 10/20/02
Go up one level in this thread
On October 20, 2002 at 04:23:51, Joachim Rang wrote:
>On October 20, 2002 at 03:48:58, Ernst Walet wrote:
>
>>On October 19, 2002 at 16:51:05, Jonas Cohonas wrote:
>>
>>>I found this wonderful position in Peter Durfeld's "Skakmyter" (Chessmyths)
>>>And the story is losely translated by me.
>>>
>>>The story behind it is equally wonderful:
>>>
>>>In this position:
>>>
>>>[D] 8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1
>>>
>>>White chose to resign as he is behind with a knight and a few pawns, and
>>>promoting the d pawn results in a simple knight fork on f7...
>>>
>>>With this position starts the story of a young Georgian pessant who, while
>>>visiting the Zar capital had been a spectator to this game. The end position had
>>>made a great impression on him, the young chess enthusiast had instinctively
>>>sensed that white was not lost! He then wrote down the position and went home to
>>>his farm in the south of Russia.
>>>
>>>In the following days and weeks he increasingly became more and more fascinated
>>>with this position, until it became an obsession for him to figure out how white
>>>could save this game and maybe even win!
>>>
>>>He would frequently setup the position while working the fields and wherever he
>>>went and the weeks turned into months and the months turned into years.
>>>
>>>It would take more than 30 years before one day he ran off his field screaming,
>>>iv'e got it! white can win this game!
>>>
>>>He then sent his lifes analysis of this game to the then famous chess magazine
>>>"64" who's editor in 1963-69 was Tigran Petrosjan, but Petrosjan for unknown
>>>reasons never recieved the letter and the letter remained unopened until 1984
>>>when Karpov was editor, however the one to open the letter was no less than Tal
>>>who upon reading the letter was moved and excited by this complex solution, that
>>>turned out to be a forced mate in 14!
>>>
>>>They went out to his farm to congratulate him and shower him with some sybolic
>>>gifts for his remarkable analysis and dedication, but as it turned out the
>>>pessant had died 2 days prior...
>>>
>>>As far as i know this is a real life story and the solution i will provide
>>>tomorrow, it is truely spectacular, try and see if your program can solve it
>>>overnight, but don't get fooled by the eval, DF7 when fed the moves had as high
>>>as -11.20 before realizing it was lost for black! heck try and see if your prog
>>>can even find the first move :)
>>>
>>>Regards
>>>Jonas
>>
>>
>>This is what Hiarcs8 produced after an overnight analysis:
>>
>>New game
>>8/3P3k/n2K3p/2p3n1/1b4N1/2p1p1P1/8/3B4 w - - 0 1
>>
>>Analysis by Hiarcs 8:
>>
>>1.Bc2+ Kg7 2.Nxe3 Nf7+ 3.Ke7
>> -+ (-2.73) Depth: 1 00:00:00
>>1.Bc2+ Kg7
>> -+ (-3.77) Depth: 2/10 00:00:00
>>1.Bc2+ Kg7
>> -+ (-3.77) Depth: 2/10 00:00:00
>>1.Nxe3 Ba5 2.Bc2+ Kg7
>> -+ (-3.10) Depth: 2/11 00:00:00
>>1.Nf6+ Kg6
>> -+ (-1.71) Depth: 2/11 00:00:00
>>1.Nf6+ Kg6 2.Bc2+ Kxf6 3.d8Q+ Kg7
>> ³ (-0.62) Depth: 2/11 00:00:00
>>1.Nf6+ Kg6 2.Bc2+ Kxf6 3.d8Q+ Kg7
>> ³ (-0.62) Depth: 3/14 00:00:00
>>1.Nf6+ Kg7 2.Nh5+ Kg6 3.Bc2+ Kxh5 4.Bd1+ Kg6 5.Bc2+ Kg7 6.d8Q
>> µ (-0.77) Depth: 4/16 00:00:00
>>1.Nf6+ Kg7
>> ³ (-0.51) Depth: 5/20 00:00:00 12kN
>>1.Nf6+ Kg7 2.Nh5+ Kg6 3.Nf4+
>> ³ (-0.27) Depth: 5/20 00:00:00 16kN
>>1.Nf6+ Kg7
>> = (-0.02) Depth: 6/23 00:00:00 31kN
>>1.Nf6+ Kg7 2.Nh5+ Kg6 3.Nf4+
>> = (0.00) Depth: 6/23 00:00:00 45kN
>>1.Nf6+ Kg7
>> = (-0.25) Depth: 7/23 00:00:00 94kN
>>1.Nf6+ Kg7 2.Nh5+ Kg6 3.Nf4+ Kf5 4.Ng2 Ne4+ 5.Kc6 Ba5 6.Nxe3+ Ke5
>> -+ (-4.34) Depth: 7/29 00:00:01 236kN
>>1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg8 4.Nc4 Bd8
>> -+ (-2.97) Depth: 7/29 00:00:02 342kN
>>1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg8 4.Ke7 Nc6+ 5.Kd6 Nd8 6.Kxc5
>> -+ (-2.98) Depth: 8/29 00:00:04 778kN
>>1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg8 4.Bf5 Kf7 5.Kxc5 Ke7 6.Nc4
>> -+ (-3.02) Depth: 9/29 00:00:08 1423kN
>>1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg7 4.Nf5+ Kg6 5.Ne3+ Kf7 6.Nf5 h5
>> -+ (-3.02) Depth: 10/29 00:00:19 3339kN
>>1.Nxe3 Ba5 2.Be2 Nb8 3.Bd3+ Kg7 4.Nf5+ Kg6 5.Ne3+ Kf7 6.Nc4 Bd8 7.Ne5+ Kf6
>>8.Ng4+ Kg7
>> -+ (-3.13) Depth: 11/30 00:00:46 8237kN
>>1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Ba4 Ba5 5.Kxc5 Kg6 6.Bb5 Kf6
>> -+ (-2.97) Depth: 11/32 00:01:20 14141kN
>>1.Kc6 Ne6
>> -+ (-2.72) Depth: 12/33 00:01:58 20333kN, tb=3
>>1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Ba4 Ba5 5.Kxc5 Kg6 6.Kc4 Ndc6 7.Nd5 Ne5+ 8.Kb5
>> -+ (-2.62) Depth: 12/33 00:02:04 21450kN, tb=3
>>1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Bf3 Na6 5.Be2 Nb8 6.Bb5 Ba5 7.Kxc5 Kg6 8.Nc2
>> -+ (-2.63) Depth: 13/37 00:04:22 45676kN, tb=12
>>1.Kc6 Ne6 2.Nxe3 Nb8+ 3.Kd6 Nd8 4.Bf3 Na6 5.Be2 c4+ 6.Kd5 Ba5 7.Kxc4 Nb8 8.Bg4
>>Kg6
>> -+ (-2.60) Depth: 14/41 00:09:46 101762kN, tb=195
>>1.d8Q Nf7+ 2.Ke7 Nxd8 3.Kxd8 Ba5+ 4.Kd7 Bc7 5.Nxe3 Bxg3 6.Nd5 Be5 7.Kc6 Kg6
>>8.Bc2+ Kg5 9.Kb5 Nb4 10.Nxb4
>> -+ (-2.59) Depth: 14/42 00:20:52 214470kN, tb=1238
>>1.d8Q Nf7+ 2.Ke7 Nxd8 3.Kxd8 Ba5+ 4.Kd7 Bc7 5.Nxe3 Bxg3 6.Bc2+ Kh8 7.Nd5 Nb4
>>8.Nxb4 cxb4 9.Ke6 Kg7 10.Kf5 h5
>> -+ (-2.52) Depth: 15/42 00:25:36 259117kN, tb=4086
>>1.d8Q Nf7+ 2.Ke7 Nxd8 3.Kxd8 Ba5+ 4.Kd7 Bc7 5.Nxe3 Bxg3 6.Nd5 Be5 7.Kc6 Bd4
>>8.Kb5 Nb8 9.Kc4 h5 10.Bf3 h4 11.Nxc3 Bxc3 12.Kxc3
>> -+ (-2.52) Depth: 16/46 00:57:12 580307kN, tb=15373
>>1.Nf6+ Kg7
>> -+ (-2.27) Depth: 16/47 01:22:08 834815kN, tb=19955
>>1.Nf6+ Kg7 2.Nh5+ Kg6 3.Bc2+ Kxh5 4.d8Q Kg4 5.Kc6 Nf3 6.Qg8+ Kh3 7.Qe6+ Kg2
>>8.Qxe3 Nd4+ 9.Kb7 Nxc2 10.Qe2+ Kxg3 11.Qxc2
>> ± (1.30) Depth: 16/49 06:32:01 4294836396kN, tb=82936
>>
>>(Celeron 1.2GHz, 512MB hash, 3, 4 and 5 piece EGTB's 20.10.2002)
>>
>>
>>It's busy at 17 ply now, and I'll try to complete this depth.
>>
>>Ernst.
>
>
>Hiarcs is great here!
>
>With your post I figured out the solution. The beautiest line is:
>
>1. Nf6+ Kg7 2. Nh5+ Kg6 3. Bc2+ Kxh5 4. d8=Q Nf7+ 5. Ke6 Nxd8+ 6. Kf5 e2 7.
>Be4 e1=N 8. Bd5 c2 9. Bc4 c1=N 10. Bb5 Nc6 11. Bxc6 Nc7 12. Ba4 Ne2 13. Bd1
>Nf3 14. Bxe2 c4 15. Bxf3# {Matt} 1-0
>
>to prevent this mate, black has to avoid 4... nf7+ which looses (obviously) too.
>
>Ruffian did not find it until depth 21 (9 hours on my Duron 735 Mhz)
>
>regards
>
>P.S.: But this is a composition, isn't it?
As far as i know this is a real life story!
Regards
Jonas
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