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Problem 750: Francesco Simoni - Twomover
francesco.simoni(16.08.2016) The Italian Master shows an interesting interpretation of the 10-WCCT theme with white correction and white Graimshaw tries!

 

 
 
 
 
 
 
 
 
750. Francesco Simoni (Italy)
16.08.2016
750
#2 vvv                         (11+12)
 
    1.c4? [2.f4# A], 1...Qe5 (a) 2.Rxe5#, 1...Qf5 (b) 2.Rxf5#
1...Rxc4 2.Be7#, 1...gxh3 /xf3 2.Qg1#, 1...Qd5! (c) 
 
    1.Be4? [2.f4# A], 1...Qf5 (b) 2.Rxf5#
1...Rxe4 2.Be7#, 1...gxh3/f3 2.Qg1#, 1...Qe5! (a)
 
    1.Re4? [2.f4# A], 1...Qe5 (a) 2.Rxe5#
1...Rxe4 2.Be7#, 1...gxh3 /xf3  2.Qg1#, 1...Qf5! (b)
 
    1.Qc4! [2.f4# A], 1...Qd5 (c) 2.Qxd5#
1...Qe5 2.Rxe5#, 1...Qf5 2.Rxf5#
1...Rxc4 2.Be7#, 1...gxh3/xf3 2.Rg1#
 
10-WCCT theme!  To threat 2.f4# it is necessary to close the Rb4. The first try 1.b4? is refuted by 1...Qd5 pinning WPf3. To prevent the pin the next two tries prepare the anticipatory unpin of the pawn so that 1...Qd5 is no more useful, but these tries because of mutual interference on e4 (White Grimshaw).
 
The key 1.Qc4 prepares a new on the pin defence. Note also the changed mate after 1.gxf3/h3 and the three refutation defences 1...Qd5/Qe5/Qf5 by the bQ.  (Author)  
 

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  P1110623

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