[Event "Pandolfini's Endgame Course"] [Site "by Bruce Pandolfini"] [Round "0"] [White "Endgame 140"] [Black "Underpromotion"] [Result "1-0"] [FEN "8/8/1KP5/3r4/8/8/8/k7 w - - 0 1"] 1. c7 Rd6+ 2. Kb5 Rd5+ 3. Kb4 Rd4+ 4. Kb3 Rd3+ 5. Kc2 Rd4 6. c8=R Ra4 7. Kb3 {#r} 1-0