+11d4 refers to the eleventh move in a game of [Chess](/wiki/Chess), where a player moves a pawn to the d4 square. This move often asserts central control and develops pieces, shaping the game's [Middlegame](/wiki/Middlegame) phase.
+## See also
+- [Chess Notation](/wiki/Chess_Notation)
+- [Opening](/wiki/Opening)
+- [Pawn](/wiki/Pawn)