Changes

a pawn with no pawns of the same color on the neighboring [[Files|files]]. It is usually evaluated just like a [[Backward Pawn|backward pawn]], except the penalty tends to be bigger, as it is more open to attacks. It may be considered even weaker if positioned on the [[Half-open fileFile|half-open file]], as then it is open to attack by enemy rooks. Many programs tend to evaluate an isolated pawn in the [[Center|center]] as weaker than on the wing, as it can be attacked from more directions <ref> [https://www.stmintz.com/ccc/index.php?id=13592 Re: Self-test and others rating stuffs...] by [[Amir Ban]], [[CCC]], January 02, 1998</ref>.