Editing Chess opening (section)

===Unusual first moves for White===
{{Main article|Irregular chess opening}}
First moves other than the king pawn (1.e4), queen pawn (1.d4), or flank openings (1.b3, 1.b4, 1.c4, 1.Nf3, 1.f4, or 1.g3) are not regarded as effective ways to exploit White's first-move advantage and thus are rarely played. Although some of these openings are not actually bad for White, each of the twelve remaining possible first moves suffers one or more of the following defects compared to the more popular choices:
* too passive for White (1.d3, 1.e3, 1.c3, or 1.Nc3)
* gratuitously weakens White's position (1.f3 or 1.g4)
* does little to aid White's development or control the center (1.a3, 1.a4, 1.h3, or 1.h4)
* develops a [[knight (chess)|knight]] to an inferior square (1.Na3 or 1.Nh3)