Ok, if Castle refers to timed chess moves.....what if we look at it simpler, go back to the Q post where he posted a play from a famous chess game, then count how many times the clock has been activated and count out the moves that makes and see how many are left in that game?
JA refered to the game, using QF3 . . . but I would be in shock if the our players are following that pattern. could be. Q told wrote several times chess game