|(1) Posted by seetharaman kalyan [Wednesday, Aug 29, 2012 21:43]|
Does anybody know an example of Queen-pawn grimshaw (mutual interference) shown in a twomover ? Obviously it can be shown only as White tries in the twomover. If the black queen is pinned it can of course interfere with pawn while defending, but I am ignoring that as in that case there is no difference between a pinned rook and queen.
I recently published a problem of mine in The Problemist not believing it can be original. However a search in the Winchloe database did not produce any predecessor. I am surprised.
There was one example showing mutual interference of a white rook and pawn but I believe it is a little easier.
|(2) Posted by Georgy Evseev [Wednesday, Aug 29, 2012 21:58]|
See WinChloe ID 90647
Zadachi i Etyudy 1928
|(3) Posted by Hauke Reddmann [Thursday, Aug 30, 2012 14:12]|
Send pics. :-)
BTW, what about a case when the queen is pinned only in the mating move -
Bh1 Rg2 - Kc6 Qf6 Bd7, 1.Rh6+? d5, 1...Qd6 2.Rh6#.
Or Bg6 Rh6 instead, same effect. Do you discard this also as a queen
which "really" is a rook?
|(4) Posted by Juraj Lörinc [Thursday, Aug 30, 2012 14:29]|
Here is the link to Kubbel's problem on-line: http://www.yacpdb.org/?id=11086
|(5) Posted by seetharaman kalyan [Friday, Aug 31, 2012 04:49]; edited by seetharaman kalyan [12-08-31]|
Thanks George and Juraj. Kubbel's is a nice predecessor. My problem (a diff. scheme) still survives :) (Note the three changed mates after 1...d5)
K.Seetharaman, Problemist Suppl. Jan 2012.
(= 9+8 )
1. Qf3? g:h! 1.f3?Kd5 2.f4# 1...d3! 1. Qa8!
|(6) Posted by seetharaman kalyan [Friday, Aug 31, 2012 04:57]|
Pawn does not seem to interfere with queen in your scheme !
|(7) Posted by Hauke Reddmann [Friday, Aug 31, 2012 18:12]|
It wasn't clear enough for me it was a *White* grimshaw :-)
(Since I have a chess game this evening, I won't construct a
working Black example, which would be anticipated anyway :-)
|(8) Posted by seetharaman kalyan [Friday, Aug 31, 2012 20:28]|
A working example for black (mutual interference of black queen and BP) is of course impossible without pinning the queen on the mating move.
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