There's the usual limits where one may claim a draw (threefold repetition or 50 moves without capture or pawn move), but there also are limits where a draw is a

There's the usual limits where one may claim a draw (threefold repetition or 50 moves without capture or pawn move), but there also are limits where a draw is automatic and should be enforced by the arbiter even if players do not request it (fivefold repetition or 75 moves without capture or pawn move).