Rook and pawn fortress against active rook
This is a Black-to-move Rook endings endgame study. With best play, the result is draw; the solution runs 10 half-moves.
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Rook and pawn fortress against active rook is a Rook endings endgame study from the Climbchess curated set of 80 positions. Even with an advanced passed pawn, White must hold the position carefully. Black's active rook can create perpetual checks and prevent promotion.
Position: Black to move. Result with best play: draw. Solution length: 10 half-moves.
FEN: R7/P7/1K6/8/3p4/3k4/r7/8 b - - 0 1
Solving guide (move by move)
Show step-by-step solution
Try the position yourself first — endgame technique compounds when you struggle through the calculation before peeking.
- Black:
d3d2 - White:
a8d8 - Black:
d4d3 - White:
a7a8r - Black:
a2a8 - White:
d8a8 - Black:
d2c3 - White:
b6c5 - Black:
d3d2 - White:
a8d8
About Rook endings
Lucena, Philidor, Vancura — the most common practical endgames.
Related endgames
Underlying chess concepts
Endgame technique reduces to a small number of recurring patterns: opposition, key squares, zugzwang, fortress, breakthrough. Climbchess catalogues 4,505 interpretable patterns extracted from Leela Chess Zero via sparse autoencoders. Browse the methodology or jump straight into the trainer to attempt this exact position interactively.
Frequently asked
Is this position a win, draw or loss?
With best play: draw. Black moves first.
What is the key idea?
Even with an advanced passed pawn, White must hold the position carefully. Black's active rook can create perpetual checks and prevent promotion.
How long is the solution?
10 half-moves (5 full moves) of forced or near-forced play.
Where can I practise it?
Open the Climbchess trainer using the deep-link button — the position loads pre-set so you can play it out against the engine.