Anon

When the chess game is over, the Pawn and the King go back to the same box

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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "White player"]
[Black "Black player"]
[Result "*"]
[BlackElo "0"]
[FEN "8/8/8/8/4pk2/R7/7r/4K3 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]

{ Philidor's Position|Philidor's position demonstrates a drawing technique
when the defender has a king and rook versus a king, rook, and a pawn.|The
position is also known as the third rank defense, because of the importance
of the rook on the third rank cutting off the opposing king. The position is
named after Francois-Andre Danican Philidor who analyzed it in 1777.|White
has correctly moved his king into the promotion square of black's pawn. Also,
white's rook prevents black's king from moving to d6.|The position is drawn
despite black's material advantage.|Black's only winning chance is to advance
and promote the pawn. The defender will keep his rook on his third rank until
the pawn advances to that rank. Then the rook will move to check the opposing
king from behind. } 1... Rb2 2. Rc3 { Both white and black can shuffle rooks
around while making no significant change in the position. } 2... e3 3. Rc8 { White
will check black relentlessly from the rear. } ( { White dare not try the
tempting immediate check. } 3. Rc4+ Kf3 4. Rc1 Rh2 5. Kd1 Rh1+ 6. Kc2 Rxc1+ 7. Kxc1 e2 8. Kd2 Kf2 9. Kd3 e1=Q { Black wins with a large material advantage. } ) 3... Kf3 ( { Black can try: } 3... Rb1+ 4. Ke2 Rb2+ 5. Ke1 { Leads nowhere. } ) 4. Rf8+ Ke4 5. Re8+ Kd3 6. Rd8+ { Draw. } *