Mate in 1 · No. 73 · Predicted ~900

Rook, bishop and two knights

White to play and mate in one.

Position

White: king on e1, rook on b1, bishop on h4, knights on d5 and e4, pawns on d2, d3, e3, f2, f4 and g4
Black: king on a8, rook on e6, bishops on a7 and h7, knights on c6 and d6, pawns on a5, e5, e7, f5 and g6