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Subject: Re: Testposition - The Vital Tempo

Author: Robert Hyatt

Date: 13:23:20 03/15/01

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On March 15, 2001 at 15:02:34, Robert Hyatt wrote:

>On March 15, 2001 at 14:37:07, Sune Larsson wrote:
>
>>
>>  [D]1R6/p3k1p1/7p/2b1pP2/P1r3P1/B7/7P/7K w - - 0 1
>>
>>  Pitschak-Foerder, Breslau 1930
>>
>>
>>  In this position white chose the timid but comfortable continuation
>>  1.Bxc5+ Rxc5 2.Rb7+ and in the end the result was a draw.
>>
>>  In chess, time is money and white could cash in by gaining a vital
>>  tempo. Maybe Herrn Pitschak was a victim of too much linear thinking
>>  in the possible upcoming pawn ending?! Anyway, here goes!
>>
>>
>>  1.Rc8! Kd6 2.Rxc5! Rxc5 3.h4! (now the time has come for the farmer
>>  boy to move)  3.-Kc6  (he must try to free himself)  4.Bxc5 Kxc5
>>  5.g5  (I think white saw this position in his calculations but was
>>  fooled by his own eyes.)  5.-hxg5 6.f6!! (yes!!) 6.-gxf6 7.h5! wins.
>>
>>  Test: White to move and win by the above line.
>>
>>  Sune
>
>
>After a reasonable amount of time, crafty sticks with the following (it likes
>this move from the get-go and never changes):
>
>               12    39.45   0.62   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
>                                    4. h3 a5 5. Rc7+ Kd4 6. f6 Ra1+ 7.
>                                    Kh2 Ra2+ 8. Kg3 Ra3+ 9. Kg2 e4
>         (2)   12->  47.03   0.62   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
>                                    4. h3 a5 5. Rc7+ Kd4 6. f6 Ra1+ 7.
>                                    Kh2 Ra2+ 8. Kg3 Ra3+ 9. Kg2 e4
>               13     1:05   0.60   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
>                                    4. h3 e4 5. Re7 Kd4 6. f6 Ra1+ 7. Kh2
>                                    Ra2+ 8. Kg3 Ra3+ 9. Kg2 e3
>         (2)   13->   1:51   0.60   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
>                                    4. h3 e4 5. Re7 Kd4 6. f6 Ra1+ 7. Kh2
>                                    Ra2+ 8. Kg3 Ra3+ 9. Kg2 e3
>               14     2:34   0.76   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
>                                    4. h3 e4 5. Re7 Kd4 6. f6 Ra1+ 7. Kh2
>                                    Ra2+ 8. Kg3 Ra3+ 9. Kh4 a5 10. Rd7+
>                                    Kc3
>         (2)   14->   3:51   0.76   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
>                                    4. h3 e4 5. Re7 Kd4 6. f6 Ra1+ 7. Kh2
>                                    Ra2+ 8. Kg3 Ra3+ 9. Kh4 a5 10. Rd7+
>                                    Kc3
>
>It's a bit more double-edged than trying to pick up the a pawn...
>
>too complicated for me right now.  :)


After an hour, crafty came up with this:

         (2)   16->  17:42   0.83   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
                                    4. h3 a5 5. Rh7 e4 6. Rxh6 e3 7. Re6
                                    Kd4 8. f6 Ra2 9. Rd6+ Ke5 10. f7 Rf2
               17    27:34   0.69   1. Rb7+ Kd6 2. Bxc5+ Kxc5 3. Rxg7 Rxa4
                                    4. h3 e4 5. Re7 Ra1+ 6. Kh2 Kd4 7.
                                    f6 Ra2+ 8. Kg3 Ra3+ <HT>
               17    51:27     ++   1. Rc8!!
               17    67:29   1.47   1. Rc8 Kd6 2. Rxc5 Rxc5 3. h4 e4 4.
                                    g5 hxg5 5. hxg5 e3 6. Kg2 Kd5 7. Bxc5
                                    Kxc5 8. f6 e2 9. fxg7 e1=Q 10. g8=Q
         (3)   17->  67:29   1.47   1. Rc8 Kd6 2. Rxc5 Rxc5 3. h4 e4 4.
                                    g5 hxg5 5. hxg5 e3 6. Kg2 Kd5 7. Bxc5
                                    Kxc5 8. f6 e2 9. fxg7 e1=Q 10. g8=Q
         (2)   18    76:15   1.37   1. Rc8 Kd6 2. Rxc5 Rxc5 3. h4 e4 4.
                                    g5 hxg5 5. hxg5 e3 6. Kg2 Kd5 7. Bxc5
                                    Kxc5 8. f6 e2 9. f7 e1=Q 10. f8=Q+
                                    Kc4 11. Qxg7


Not exactly a crushing win, but you got your move.  :)



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