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MatPlus.Net Forum General reciprocal change mutate
 
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(1) Posted by Geoff Foster [Friday, Sep 9, 2011 10:21]

reciprocal change mutate


R.T.Lewis, The Problemist 1988
(= 5+3 )

#2
set play
1... Kd6 2.Qe7
1... f4 2.Qf6

1.Bb6! zugzwang
1...Kd6 2.Qf6
1... f4 2.Qe7

Reciprocal change in mutate form. Is this a unique achievement?
 
(Read Only)pid=7285
(2) Posted by Paz Einat [Friday, Sep 9, 2011 12:11]

There are quite a few RC mutates, and even a few with less than 10 pieces.
According to WinChloe this specific problem is anticipated (exactly the same position) by R. Avramaa, Shakhmaty v SSSR 1966
 
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MatPlus.Net Forum General reciprocal change mutate