Mate in 2 · No. 648 · ~1500 · Check

Rook, bishop and two knights

White to play and mate in two.

Position

White
king on d7, rook on h3, bishop on f5, knights on b1 and f1, pawns on a2, d2, f4 and g4
Black
king on d4, rooks on a1 and b2, knights on c7 and e7, pawns on b4, b5, b7, c5, c6 and f7