The Long Side: A Sixth-Rank Win
White to play and win
PlayYour rook sits far off on the a-file while your king shields the pawn. That distance is not idle: the long side is exactly where the rook shelters the king from checks as the pawn advances.
No signup needed. The opponent never gives up, and every mistake gets explained.
The Long Side: A Sixth-Rank Win
Win against perfect defense
Waking the engine…
The theory
When rook and pawn endings turn on checking room, the long side and the short side of the board decide the result. The rule is simple and it wins games.
Long side, short side. Draw an imaginary line down the pawn's file. The wider part of the board is the long side, the narrow part the short side. The attacker's rook wants the long side for maximum checking and shielding room; the defender wants his king on the short side and his rook on the long side.
Sheltering the king. With your rook on the long flank, every side check can be met by interposing at a comfortable distance, and the king walks the pawn home behind that screen.
In this drill the defender checks from the best angle he has. Answer from the long side and the pawn promotes.