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Subject: Re: a strange positional evaluation (corrected diagram)

Author: Simon Finn

Date: 02:12:43 10/02/01

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On October 02, 2001 at 05:09:28, Simon Finn wrote:

>On October 01, 2001 at 19:49:54, Simon Finn wrote:
>
>>The hard part is to distinguish between positions like
>>
>>[D]8/b1k5/8/P2K4/6P1/4pB2/8/8 b - - 0 1
>>
>>which White wins because there's no blockade, and positions like
>>
>>[D]8/8/3k4/PK6/2Bb2P1/4p3/8/8 b - - 0 1
>>
>>where White's attempts to break the blockade fail by a single tempo in lines
>>like:
>>
>>1...Bc5 2. Ka6 Kc7 3. g5 Kd6 4. g6 Bd4 5. Kb7 Ke7 6. a6 Kf8 7. a7 Bxa7 8. Kxa7
>>Kg7 9. Bd3 e2 10. Bxe2 Kxg6
>
>I was mistaken. Immediate tactical attempts to break the blockade fail,
>but White can win by pushing his pawn to a6 then bringing his king to
>h3 via e1.
>
>[D]8/b7/P7/8/5kP1/4p2K/4B3/8 b - - 0 1
>
>For example:
>
>1...Bb8 2. Kh4 Ke5 3. Kg5 Ba7 4. Kg6 followed by pushing the g-pawn
>1...Kg5 2. Kg3 Bb6 (3... Kf6 4. Kf4) 3. Kf3 Kf6 4. Ke4 Ke6 5. Bc4+
>1...Ke5 2. Kh4 Kf6 3. Kh5 Kg7 4. Kg5 Bb6 5. Kf5 Kf7 6. Bc4+
>                   3...   Bb8 5. Kh6 Kf7 (5...Bf4+ 6. g5+) 6. Bc4+ Kf8 7. g5
>
>Simon
>
>>
>>Simon



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