Originally posted by David113
[fen]7b/p2R2B1/rp4p1/pr4pp/PRb1NkBP/2N1p1pP/8/K7 w - - 0 1[/fen]
Mate in 2.
How many mate threats does the key move create?
Does that mean the solution has duals (more than one possible mate after a black defense)?
with seven threats: Ne6, Nd5, Nd3, Ne2, Rf7, Rd4, Rxc4.
However, after any Black move, only one mate remains, so there are no duals.
All threats are realized in at least one variation.