Mate in 1 · No. 50 · Predicted ~700

Queen, two rooks, bishop and knight

White to play and mate in one.

Position

White
king on e3, queen on b3, rooks on e1 and h1, bishop on a2, knight on f1, pawns on c3, e2, e4, f2, g3, h2 and h3
Black
king on e7, queen on f8, rooks on c8 and d8, bishop on h8, knight on f6, pawns on a5, a7, c7, d6, e6, g6 and h6