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Brian Towers ♦
Brian Towers ♦
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2k5/p5r1/R7/8/7K/8/8/8 w - - 0 1

[Title "Why is Ra1 the only move?"]
[fen "2k5/p5r1/R7/8/7K/8/8/8 w - - 0 1"]

According to the tablebase at lichess.org, the only drawing move in the above position is 1.Ra1. After playing various lines according to the tablebase, I can't figure out why 1.Ra1 draws, and why all other moves (like 1.Ra2) lose. How should this position be understood?

2k5/p5r1/R7/8/7K/8/8/8 w - - 0 1

According to the tablebase at lichess.org, the only drawing move in the above position is 1.Ra1. After playing various lines according to the tablebase, I can't figure out why 1.Ra1 draws, and why all other moves (like 1.Ra2) lose. How should this position be understood?

[Title "Why is Ra1 the only move?"]
[fen "2k5/p5r1/R7/8/7K/8/8/8 w - - 0 1"]

According to the tablebase at lichess.org, the only drawing move in the above position is 1.Ra1. After playing various lines according to the tablebase, I can't figure out why 1.Ra1 draws, and why all other moves (like 1.Ra2) lose. How should this position be understood?

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Leonard Blackburn
Leonard Blackburn
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How Should This Rook and Pawn Endgame Be Understood?

2k5/p5r1/R7/8/7K/8/8/8 w - - 0 1

According to the tablebase at lichess.org, the only drawing move in the above position is 1.Ra1. After playing various lines according to the tablebase, I can't figure out why 1.Ra1 draws, and why all other moves (like 1.Ra2) lose. How should this position be understood?