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Problem 592: Aleksandr Sygurov - Fairy (Maximummer)
alexandr.sygurov(08.06.2015) Nice fairy selfmate with AUW and cross/star duell between the wR/bQ by Aleksandr Sygurov.
   1.c8Q+? 1…Ka7!, 1.c8S? 1...Ba4!, 1.c8R+? 1…Kb7!
1...Qh7 2.Rxe2 Qb1 3.Ra2+ Ba4# (2.Re4? Qh1!)
1...Qh1 2.Rf3 Qh8 3.Rxc3 Qxc3# (2.Rd3? Qb7!)
1...Qb7 2.Re4 Qb1 3.Ra4+ Bxa4# (2.Re2? Qh1!)
1...Qb1 2.Rd3 Qb8 3.Rxg3 Qxg3# (2.Rf3? Qh7!)
1...Ba4 2.Bb7+ Qxb7 3.Re4/Rf3 Qb1#
Duel wR & bQ: Cross vs Star, AUW, dual avoidance, Meredit, Task (Author)
Maximummer: Black must play the geometrically longest move or may choose from among longest moves of equal length, distances being measured from the center of each square. Diagonal and oblique distances are measured from the orthogonal coordinates by using Pythagora’s theorem (take the square root of the sum of the squares of the orthogonal distances). All other orthodox chess rules apply. 


+4 #1 Kjell Widlert 2015-06-09 20:22
The tries c8Q/c8R+ seem to me to be of limited value: they don't prepare any white selfmate at all, so they are not meaningful tries to reach the goal - they just happen to lead to unique black moves underr the maximummer condition.
0 #2 Sygurov 2015-08-04 04:50
Согласен, что попытки 1.c8Q(R)? не имеют никакого решения. Но какой композитор не привел бы их к своей задаче!?

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