1) RBc6+; Kb8
2) PR̲h8=Q+; Nc8
White RookBishop moves to c6, check. Black King escapes check by moving to b8 (only option). White PawnRook uses it's Rook vest power to move to h8, promotes to Queen, check. Black Knight blocks check by moving to c8 (only option). White Queen on h8 captures c8, checkmate.