the stage between the opening and the end game, characterized by complicated moves by both opponents with pieces at full strength.
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How to use middle game in a sentence
Very often, however, in the middle-game attacks are made against a position or against pieces, or even Pawns.
This principle of the middle-game can sometimes be applied in the endings in somewhat similar manner.
Having all this clear in mind we will now revert to the openings and middle-game.
That, at least, is what the ideal middle-game play should be, if it is not so altogether in these examples.
British Dictionary definitions for middle game
chess the central phase between the opening and the endgame
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012