A Scrabble player has been thrown out of the US national championship tournament after being caught hiding blank letter tiles.
The cheat was spotted by a player at a nearby table, who noticed the youth conceal a pair of blank tiles, which can be used as wild card letters. When confronted he admitted to it.
John Williams, executive director of the National Scrabble Association, said the cheat was ejected from the 350-player event in Round 24 of the 28-round event.
Mr Williams, who has served as executive director for 25 years and co-authored a book on the board game, said this was the first incident of cheating at a national tournament. However, he said it has been known to occur at smaller, regional events.
"It does happen no matter what. People will try to do this," he said. "It's the first time it's happened in a venue this big though. It's unfortunate. The Scrabble world is abuzz. The internet is abuzz."
Williams would not identify the player by name or age because he is a youth. There are four divisions and he was competing in Division 3.
He said Division 3 is equal to "any great living-room player out there."
In Scrabble matches, players accumulate points during one-on-one matches by pulling random letter tiles from a bag of 100 and trying to create words.
A total of 98 tiles have letters on them and two are blank. Blank tiles can be used as wild card letters to complete words.
The ejected player had concluded a previous game and never reinserted the blank tiles into his bag in an attempt to use them at his discretion in the next game, organisers said.
Players in the national tournament format play multiple matches over the five-day event. The winner is determined by a combination of their overall record against other players and the cumulative point spread over the entire tournament.
The ejected player forfeited all of his wins.
Mr Williams said there is usually "good self-policing in the Scrabble world" as players try to protect the integrity of statistics on the competitive circuit.
The winner receives $10,000 (£6,400).