I 1. ... N ~ 2.Q(x)d7 [A]# - Zero
II 1.Qc5? [2.Ng5#] - Extension
1.N~ (+ Nd5) 2.Q(x)d5 [B]#
But 1. ... Kf7 !
III 1.Qg7?[2.Qxf6#] - Black correction
1. ... Kf5 2.Qxf6#
1. ... N ~ 2.Q(x)d7[A]#
But 1. ... Nd5!
IV 1.Rd8? [2.Nd4[C]#] - Collapse
1. ... Nd7 2.Qxd7 [A]#
But 1. ... Kf5!
Solution: 1.Rd5! [2.Re5#] - Split
1. ... Kxd5 2.Qc6#
1. ... Nd7/g4 2.Q(x)d7 [A]#
1. ... Nd5 2.Nd4 [C]#
Keywords:
New! A complex of games an array of black duals.
(There may be other combination)
Aristocrat; Black correction; Changed mates; Changed
functions of moves