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Subject: Re: KRB Vs KR - Mate in 50

Author: Robert Hyatt

Date: 10:48:30 09/25/00

Go up one level in this thread


On September 25, 2000 at 13:21:34, Mark Young wrote:

>On September 25, 2000 at 09:01:19, Antonio Dieguez wrote:
>
>>hello!
>>
>>I come to ask two things, please...
>>
>>What are the results of the basics endgames KRB vs KR and KRN vs KR, both draws?
>> if it is, there is some exceptions except the obvius?
>>
>>And can someone post some of these mate in n positions with n very very very
>>high?
>>
>>Thanks!
>
>Easy position to win!!


This is wrong.  _most_ KRB vs KR and KRN vs KR are _drawn_.  There are some
wins for the stronger side, and even a couple of wins for the side without
the B/N, but in general these are dead draws.


>
>[d]5k2/2R5/8/5K2/3B4/8/8/4r3 w - - 0 1
>
>1.Be5  #50/1  5  Rb1  #50/1  0  2.Rd7  #49/1  0  Rb5  #49/1  0  3.Ke6  #48/1  0
>Rb6+  #48/1  0  4.Bd6+  #47/1  0  Kg8  #47/1  0  5.Kf6  #46/1  0  Rb2  #46/1  0
>6.Rg7+  #45/1  0  Kh8  #45/1  0  7.Ra7  #44/1  0  Rb6  #44/1  0  8.Rd7  #43/1  0
> Rb2  #43/1  0  9.Bc5  #42/1  0  Rc2  #42/1  0  10.Rd5  #41/1  0  Rc3  #41/1  0
>11.Bd6  #40/1  0  Rc1  #40/1  0  12.Rh5+  #39/1  0  Kg8  #39/1  0  13.Be5  #38/1
> 0  Rb1  #38/1  0  14.Rg5+  #37/1  0  Kh7  #37/1  0  15.Rg7+  #36/1  0  Kh8
>#36/1  0  16.Ra7  #35/1  0  Rb6+  #35/1  0  17.Kf7+  #34/1  0  Kh7  #34/1  0
>18.Bf4  #33/1  0  Rb5  #32/1  0  19.Kf6+  #32/1  0  Kg8  #32/1  0  20.Ra8+
>#31/1  0  Kh7  #31/1  0  21.Be5  #30/1  0  Rb1  #30/1  0  22.Ra7+  #29/1  0  Kg8
> #29/1  0  23.Bd4  #28/1  0  Rf1+  #28/1  0  24.Ke6  #27/1  0  Rf7  #27/1  0
>25.Ra3  #26/1  0  Rf8  #26/1  0  26.Rh3  #25/1  0  Re8+  #25/1  0  27.Kf6  #24/1
> 0  Re2  #23/1  0  28.Rg3+  #23/1  0  Kf8  #23/1  0  29.Be5  #22/1  0  Rf2+
>#21/1  0  30.Ke6  #21/1  0  Ke8  #21/1  0  31.Rb3  #20/1  0  Rd2  #20/1  0
>32.Rb7  #19/1  0  Rd1  #19/1  0  33.Rg7  #18/1  0  Rf1  #18/1  0  34.Bg3  #17/1
>0  Rf3  #17/1  0  35.Bd6  #16/1  0  Re3+  #16/1  0  36.Be5  #15/1  0  Rf3  #15/1
> 0  37.Re7+  #14/1  0  Kf8  #14/1  0  38.Rc7  #13/1  0  Kg8  #13/1  0  39.Rg7+
>#12/1  0  Kf8  #12/1  0  40.Rg4  #11/1  0  Re3  #11/1  0  41.Rh4  #10/1  0
>Rxe5+  #10/1  0  42.Kxe5  #9/1  0  Kf7  #9/1  0  43.Rg4  #8/1  0  Ke7  #8/1  0
>44.Rg7+  #7/1  0  Ke8  #6/1  0  45.Ke6  #6/1  0  Kd8  #6/1  0  46.Rh7  #5/1  0
>Kc8  #5/1  0  47.Kd6  #4/1  0  Kb8  #4/1  0  48.Kc6  #3/1  0  Ka8  #3/1  0
>49.Kb6  #2/1  0  Kb8  #2/1  0  50.Rh8# #1/1  0  1-0



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