Best move · No. 56 · Predicted ~1100

Queen, two rooks and bishop

White to play. Find the best move.

Position

White
king on b1, queen on b4, rooks on c1 and g1, bishop on c4, pawns on a3, c3, d4, f2, g4 and h5
Black
king on e8, queen on a4, rooks on c8 and h8, bishop on f4, knight on g8, pawns on b5, e6, f7, g7 and h6