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Created page with "'''Home * Evaluation * Pawn Structure * Passed Pawn * Outside Passed Pawn''' The '''Outside Passed Pawn''' evaluation term used in the Endgame|end..."
'''[[Main Page|Home]] * [[Evaluation]] * [[Pawn Structure]] * [[Passed Pawn]] * Outside Passed Pawn'''
The '''Outside Passed Pawn''' evaluation term used in the [[Endgame|endgame]] (or just in the [[Pawn Endgame|pawn endgame]]) by a couple of strong chess programs, most notably [[Crafty]].
An Outside Passed Pawn is a passer placed on a leftmost or rightmost file with a pawn of either color on it. All other things being equal, it constitutes almost a winning advantage. This is because it may sacrifice itself, driving the enemy king far away from its own pawns, which may be then captured by the other king. Whereas the principle is simple, the exact implementation rules become tricky because of the numerous exceptions. Broadly speaking, this evaluation term has no use under the [[Pawn Race|pawn race]] conditions or in positions which might possibly lead to one: if the other side has an [[Unstoppable Passer|unstoppable passed pawn]], [[Connected Passed Pawns|connected]] or [[Protected Passed Pawn|protected passer]], or even the strong [[Candidate Passed Pawn|candidate passed pawn]].
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=489960 Outside passer and candidate passer: definition wanted! :-)] by [[Alessandro Scotti]], [[CCC]], February 27, 2006
=External Links=
* [https://en.wikipedia.org/wiki/Passed_pawn#Outside_passed_pawn Outside passed pawn from Wikipedia]
'''[[Passed Pawn|Up one Level]]'''
The '''Outside Passed Pawn''' evaluation term used in the [[Endgame|endgame]] (or just in the [[Pawn Endgame|pawn endgame]]) by a couple of strong chess programs, most notably [[Crafty]].
An Outside Passed Pawn is a passer placed on a leftmost or rightmost file with a pawn of either color on it. All other things being equal, it constitutes almost a winning advantage. This is because it may sacrifice itself, driving the enemy king far away from its own pawns, which may be then captured by the other king. Whereas the principle is simple, the exact implementation rules become tricky because of the numerous exceptions. Broadly speaking, this evaluation term has no use under the [[Pawn Race|pawn race]] conditions or in positions which might possibly lead to one: if the other side has an [[Unstoppable Passer|unstoppable passed pawn]], [[Connected Passed Pawns|connected]] or [[Protected Passed Pawn|protected passer]], or even the strong [[Candidate Passed Pawn|candidate passed pawn]].
=Forum Posts=
* [https://www.stmintz.com/ccc/index.php?id=489960 Outside passer and candidate passer: definition wanted! :-)] by [[Alessandro Scotti]], [[CCC]], February 27, 2006
=External Links=
* [https://en.wikipedia.org/wiki/Passed_pawn#Outside_passed_pawn Outside passed pawn from Wikipedia]
'''[[Passed Pawn|Up one Level]]'''
