[Event "Pandolfini's Endgame Course"] [Site "by Bruce Pandolfini"] [Round "0"] [White "Endgame 074"] [Black "Controlling the Critical Squa"] [Result "1/2-1/2"] [FEN "8/8/8/p7/8/1k6/3K4/8 w - - 0 1"] 1. Kc1 a4 2. Kb1 a3 3. Ka1 a2 {#d} 1/2-1/2