Assertion: chess player's game | /r/HasAspect | three distinct phases
Facets:
value: usually
type: TEMPORAL
value: because of different strategic and tactical patterns
type: CAUSE
Source sentences:
text: Because of different strategic and tactical patterns, a game of chess is usually divided into three distinct phases: Opening, usually the first 10 to 25 moves, when players develop their armies and set up the stage for the coming battle; middlegame, the developed phase of the game; and endgame, when most of the pieces are gone and kings start to take an active part in the struggle.