[Event "?"] [White "Philidor"] [Black "?"] [Site "?"] [Round "?"] [Result "*"] [Date "2025.01.07"] [SetUp "1"] [FEN "3k4/8/8/2KP4/8/8/6r1/7R b - - 0 1"] [PlyCount "11"] [GameId "2131438687176039"] [SourceVersionDate "2024.12.18"] {[%evp 0,11,18,234,99,59,1,0,1,1,1,0,0,0]} 1... Rg6 {This is the key defensive idea, putting the rook on the 3rd rank. If white wants to make progress then he will have to push the pawn, opening him up to checks.} (1... Rc2+ $4 {loses} 2. Kd6 Kc8 (2... Ke8 3. Rh8+ Kf7 4. Kd7 {is similar}) 3. Rh8+ Kb7 {The King is forced away and white can force the Lucena position.} 4. Kd7 Rc1 5. d6 Rc2 6. Rh1 Rc3 7. Kd8 Rc2 8. d7) 2. d6 ({The other try is} 2. Re1 Rh6 3. Re6 {but the King and pawn ending is a draw} Rxe6 4. dxe6 Ke7) 2... Rg2 {Now the rook comes behind the pawn to give a barrage of checks. With the pawn on the 6th rank there is nowhere to hide.} 3. Kc6 (3. Rh4 Rc2+ 4. Rc4 Rxc4+ 5. Kxc4 Kd7 $11) 3... Rc2+ 4. Kd5 Rd2+ 5. Ke5 Re2+ 6. Kf4 Rd2 $11 *