Help needed with a problem On an empty board, how can you place a White king, two White, rooks, and a Black king so that White can give mate in 4 ways from that position?
[FEN &quot;8/8/8/8/8/8/2R5/k3K2R w K - 0 1&quot;]

From this position, Kd2 Ke2 Kf2 and O-O deliver checkmate