Best move · No. 49 · Predicted ~900

Two rooks and two bishops

White to play. Find the best move.

Position

White: king on f2, rooks on b1 and g1, bishops on e2 and g5, pawns on a2, d5 and h2
Black: king on h8, queen on e4, bishops on f8 and h3, pawns on a7, b2, b7, d4 and h7