Editing Chess puzzle (section)

==Chess problems==
{{main|Chess problem}}
While a ''chess puzzle'' is any puzzle involving aspects of chess, a ''chess problem'' (or ''chess composition'') is a crafted position with a specified task to be fulfilled, such as White mates in ''n'' moves. Chess problems are divided into orthodox and heterodox types, both covering a variety of genres.

''Orthodox problems'' employ the standard rules of chess and involve positions that can legally arise from actual gameplay. The most common form of orthodox problem is the [[directmate]], which stipulates checkmate in ''n'' moves, usually two or three. The positions are often dissimilar to positions from actual play, sometimes to the extent of being outlandish in comparison. The {{chessprobgloss|key}} move is usually counter-intuitive. Despite their unusual stipulations, [[helpmate]]s and [[selfmate]]s are usually considered orthodox problems, as they use standard chess rules. Likewise, [[retrograde analysis]] problems are usually considered orthodox.

''Heterodox problems'', also called [[Fairy chess|fairy chess problems]], involve altered rules, such as different boards and pieces not used in standard chess.