Mate in 2 · No. 641 · ~1500 · Check

Rook and two bishops

White to play and mate in two.

Position

White
king on g8, rook on d7, bishops on c6 and h8, pawns on b2, c2, g3 and g4
Black
king on a4, rook on a1, bishop on d1, knights on b5 and b6, pawns on a5, a6, b3 and d3