Blockade

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Blockade,
a chess term concerning the mobility of pawns and pieces, most commonly used in the context of blockade of stop or telestop squares of passed pawns by minor pieces as elaborated by Aron Nimzowitsch in The Blockade ¹ and My System (first restrain, next blockade, lastly destroy) ².

Contents

Ambiguity

A Block (blockade) is a term for interrupting the attacking ray of a sliding piece, such as blocking a distant check by interposing a pawn or piece
The Blockage (blockade) refers to pawn, piece and king placement, typically in late endgames or pawn endgames which prevents the enemy king or pieces to attack own pawns
The Blockade also refers to a chess tactics where a decoy sacrifice is conducted to decisively reduce the mobility of pieces or king as start of a combination

Aron Nimzowitsch (1925). Die Blockade. Bernhard Kagan, Berlin, English version by Philip Hereford (1929). The Blockade. German online version edited by Wilfried Krebbers, nimzowitsch.net
Aron Nimzowitsch (1925,1927). Mein System. Bernhard Kagan, Berlin, English version by Philip Hereford (1930). My System. Harcourt, Brace and Company, German online version edited by Wilfried Krebbers, nimzowitsch.net ⁴
Yuri Averbakh (1985). Chess Tactics for Advanced Players. Pergamon Press, Part 2 The Combinantion, Drawing Combinations, The blockade pp. 245, 2008 edition by Labate Chess, 2012 edition by Ishi Press with introduction by Sam Sloan
Lyudmil Tsvetkov (2010, 2012). Little Chess Evaluation Compendium.