Manual de Fritz 15 2015 | Page 345

Chess rules (FIDE) 345 5.4. The game may be drawn if the identical position is about to appear or has appeared on the chessboard three times. (See Article 9.2) 5.5. The game may be drawn if the last 50 consecutive moves have been made by each player without the movement of any pawn and without the capture of any piece. (See Article 9.3) 4.7 6: The chess clock 6.1. 'Chess clock' means a clock with two time displays, connected to each other in such a way that only one of them can run at one time. 'Clock' in the Laws of Chess means one of the two time displays. 'Flag fall' means the expiry of the allotted time for a player. 6.2. When using a chess clock, each player must make a certain number or all moves in an allotted period of time; or may be allocated an additional amount of time after each move. All this must be specified in advance. The time saved by a player during one period is added to his time available for the next period, except in the 'time delay' mode. In the time delay mode both players receive an alloted 'main thinking time'. They also receive a 'fixed extra time' for every move. The count down of the main time only commences after the fixed time has expired. Provided the player stops his clock before the expiry of the fixed time, the main thinking time does not change, irrespective of the proportion of the fixed time used. 6.3. Each time display has a 'flag'. Immediately after a flag falls, the requirements of Article 8.1 must be checked. 6.4. The arbiter decides where the chess clock is placed. 6.5. At the time determined for the start of the game the clock of the player who has the white pieces is started. 6.6. The player shall lose the game if he arrives at the chessboard more than one hour after the scheduled start of the session (unless the rules of the competition specify or the arbiter decides otherwise). 6.7. (a) D uring the game each player, having made his move on the chessboard, shall stop his own clock and start his opponent's clock. A player must always be allowed to stop his clock. His move is not considered to have been completed until he has done so, unless the made move ends the game. (See Articles 5.1, 5.2 and 5.3) The time between making the move on the chessboard and stopping his own clock and starting his opponent's clock is regarded as part of the time allotted to the player. (b) A player must stop his clock with the same hand as that with which he made his move. It is forbidden to keep the finger on the button or to 'hover' over it. (c) The players must handle the chess clock properly. It is forbidden to punch it forcibly, to pick it up or to knock it over. Improper clock handling shall be penalised in accordance with Article 13.4. 6.8. A flag is considered to have fallen when the arbiter observes the fact or when a valid claim to that effect has been made by either player. © ChessBase 2015