THE BASIC PRINCIPLES OF CHESS

Should the piece will make a capture, "x" is generally inserted ahead of the destination sq.. As a result Bxf3 indicates "bishop captures on f3". When a pawn would make a capture, the file from which the pawn departed is used to detect the pawn earning the seize, by way of example, exd5 (pawn within the e-file captures the piece on d5).This in the