The most complex positions with rook’s pawns arise when the stronger side has the “wrong” bishop. As in all similar examples that we have already examined, a win may be achieved only if the condition of capturing the pawn whilst keeping the enemy king away from the “wrong” corner can be met. The simplest case was elaborated by I. Kling and B. Horwitz way back in 1851.
The important rule formulated by V. Rauzer, 1928: with kings in opposition and the bishop in between them, White always wins provided the black king has been cut off beyond the zone delimited by the bishop’s diagonals a7-d4 and h6-f4 as well as the central square e5.
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