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Subject: Re: US Championship Shahade vs Sagalchik, why did Sagalchik Resign???

Author: Dann Corbit

Date: 22:17:51 01/14/02

Go up one level in this thread


On January 15, 2002 at 00:53:53, Dann Corbit wrote:

>On January 15, 2002 at 00:03:49, Dann Corbit wrote:
>
>>On January 14, 2002 at 23:35:23, James Doby  wrote:
>>
>>>
>>>
>>>  [D]4r3/2k1P2p/p1p1n1p1/1p1Q4/1q6/6N1/P4PPP/2R3K1 b - - 0 33
>>>
>>>In this final position Sagalchik resigned however Fritz7a doesn't see him as
>>>lost at all, giving him a score of only -0.8, what's up with that?
>>
>>An interesting question.  Here is the actual final position, and a bit of
>>analysis by Pepito:
>>
>>Pepito> setboard 4r3/2k1P2p/p1p3p1/1p1Q4/1q1n4/6N1/P4PPP/2R3K1 w - - 0 34
>>Pepito> go
>> 5    57    92    16327  Qd5-e5 Qb4-d6 Rc1-e1 Qd6xe5 Re1xe5 Kc7-d6 Re5-e4
>> 5    57    96    26196  Qd5-e5 Qb4-d6 Rc1-e1 Qd6xe5 Re1xe5 Kc7-d6 Re5-e4
>> 6    24   103    52377  Qd5-e5 ?? Qb4-d6 Rc1-e1 Qd6xe5 Re1xe5 Kc7-d6 Re5-e4
>> 6    14   108    73965  Qd5-e5 Qb4-d6 Qe5-e3 Re8xe7 Ng3-e4 Qd6-d5 f3
>> 6    14   114    96570  Qd5-e5 Qb4-d6 Qe5-e3 Re8xe7 Ng3-e4 Qd6-d5 f3
>> 7   -15   124   140882  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-e5
>> 7   -15   150   230551  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-e5
>> 8   -14   170   315177  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Kd6-d5
>>Ne2-f4 Kd5-e4 Nf4-d3 c4
>> 8   -14   209   455249  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Kd6-d5
>>Ne2-f4 Kd5-e4 Nf4-d3 c4
>> 9   -23   251   651398  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2
>> 9   -23   327   969251  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2
>>10   -23   404  1333929  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3
>>10   -23   520  1817989  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3
>>11   -31   693  2645324  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3 a5
>>11   -31   954  3764288  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3 a5
>>12   -31  1259  5207388  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3 a5 Kg1-f1
>>12   -31  1694  7054151  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3 a5 Kg1-f1
>>13   -31  2497 10702200  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3 a5 Kg1-f1 Re2-c2
>>13   -31  3620 15341311  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 a3 a5 Kg1-f1 Re2-c2
>>14   -45  5522 24161529  Qd5-e5 Qb4-d6 Qe5xd6 Kc7xd6 Rc1-d1 c5 Ng3-e2 Re8xe7
>>Ne2xd4 c5xd4 Rd1xd4 Kd6-c5 Rd4-d1 Re7-e2 Rd1-a1 b4 Kg1-f1 Re2-c2 Kf1-g1
>>
>>Hardly seems disastrous at this point.
>
>Chess Tiger has it figured as very close to even:
>4r3/2k1P2p/p1p3p1/1p1Q4/1q1n4/6N1/P4PPP/2R3K1 w - - ce -18; acd 16; acs 1; pv
>Qe5+ Qd6 Qxd6+ Kxd6 Rd1 c5 Ne2 Ke5 Nxd4 cxd4 a4 Rxe7 axb5 axb5 Rb1 Kf6 Rc1;|!1
>
>ChessMaster 8000:
>Time	Depth	Score	Positions	Moves
>6:19	7/12	-0.36	66417725	1. Qe5+ Qd6 2. Qxd6+ Kxd6 3. Rd1
>					c5 4. Ne2 Rxe7 5. Nxd4 cxd4 6.
>					Rxd4+ Kc5 7. Rd1 Re2 8. a3 Ra2
>					9. Rc1+ Kd5 10. Rd1+ Ke5
>
>Phalanx says:
> 13    -70 68159 133602394  Qd5-e5  Qb4-d6  Qe5xd6  Kc7xd6  Rc1-d1  Pc6-c5
>                           Ng3-e2  Re8xe7  Ne2xd4  Pc5xd4  Rd1xd4  Kd6-c5
>                           Rd4-d1  Re7-e2  Rd1-a1  Re2-d2  Kg1-f1  Kc5-d4

Crafty seems quite unhappy about the situation for white:

               15->   5:05  -1.45   1. Qe5+ Qd6 2. Qxd6+ Kxd6 3. Rd1 c5
                                    4. Ne2 Rxe7 5. Nxd4 cxd4 6. Rxd4+ Kc5
                                    7. Rd1 Re2 8. a3 Ra2 9. Rc1+ Kd6 10.
                                    Kf1 Rxa3 11. Ke2



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