Mate in 1 · No. 121 · Predicted ~900

Queen, two rooks, two bishops and knight

White to play and mate in one.

Position

White
king on g1, queen on f3, rooks on c1 and e1, bishops on e6 and f2, knight on b5, pawns on a2, b2, b3, b4, g2, h2 and h4
Black
king on g7, queen on h6, rooks on a8 and h8, bishops on c5 and h1, knights on c6 and c7, pawns on a5, b6, b7, d5, e5 and g6