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| | GotW #72: Data Formats and Efficiency |
 | | In this case, we are mimicking one of the standard online notations, which uses a 'W' or 'B' or '.' to designate the side that owns the piece in the given square, and a 'K', 'Q', 'R', 'B', 'N', 'P', or '.' to designate the type of piece in the given square. |
 | | Old-style "descriptive" chess notation identifies squares using variable-length tags like K3 and QN8, instead of using two-character tags like e3 and b8. |
 | | Modern "algebraic" chess notation is more compact, and any half-move can be written using at least 2 characters (e.g., d4) and at most 4 characters (e.g., Rgf1, gh=Q). |
| www.gotw.ca /gotw/072.htm (3186 words) |
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