Mate in 2 · No. 600 · ~1700 · Check

Queen, rook, bishop and knight

White to play and mate in two.

Position

White
king on e8, queen on f3, rook on f8, bishop on a1, knight on f6, pawns on b2, b3, f2 and h4
Black
king on f5, rooks on d2 and g3, bishops on h3 and h6, knights on e3 and h7, pawns on c5, d3, e6, f4, f7 and g6