Mate in 3 · No. 208 · Harder

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on d6, queen on b1, rook on f1, bishop on b2, knight on c8, pawns on b3 and h4
Black
king on d2, knight on d3, pawns on a4, b4, c4 and f4