Adjournment (games)

The rationale is that games often extend in duration beyond what is reasonable for a single session of play.

Before chess programs achieved master strength, and then became better than the best humans, adjournment was commonly offered in tournaments.

Considerations on when to adjourn a game can be complex, and involve an extra dimension of psychology that is not part of strictly logical gameplay.

Major Japanese title matches like the Honinbo, Kisei and Meijin commonly have thinking time of over eight hours per player.

Sealing a move that has no purpose other than to force a particular answer from one's opponent is considered poor etiquette.