In a local tournament swiss system format, both players saw their pairings. Player A is assigned to handle the white pieces and Player B black. However, player A upon returning to the playing table plays the black pieces and player B plays the white pieces. Player A who is assigned to play white but played the black pieces won that game. Player B realizes that there is a mistake in the color assignment and demanded a repeat of the game. The arbiter decided to give them both a zero point for negligence. Was that a correct decision? Where did the basis come from? Thank you very much.
I don't know the specifics for FIDE rated tourney play, but if a game was played, the result should stand; the player with the win should get the win but any due colors in subsequent rounds would be based on the color either player should have had in the round they played the incorrect colors.
Edit: according to 7.2 "if a game has begun with colours reversed then it shall continue, unless the arbiter rules otherwise." However, Section 5 deals with completion of the game and since the game was completed, it should count.
In a local tournament swiss system format, both players saw their pairings. Player A is assigned to handle the white pieces and Player B black. However, player A upon returning to the playing table plays the black pieces and player B plays the white pieces. Player A who is assigned to play white but played the black pieces won that game. Player B realizes that there is a mistake in the color assignment and demanded a repeat of the game. The arbiter decided to give them both a zero point for negligence. Was that a correct decision? Where did the basis come from? Thank you very much.