An Hour of Play, a Quarter-Turn Too Far
A draughts board rotated by 90 degrees, and a full hour of play before the players noticed. That is the memorable detail in an anecdote from an international team competition in 2005.
The surprising part is not the mistake itself, but how long it took to discover. The two players reportedly continued for a full hour before realising something was wrong with the board. This was no subtle feature of the position: the board was turned through a quarter-turn, leaving a light square in the bottom-left corner.
The tournament anecdote has a very concrete focus. The problem was not which move to choose, but how the board itself was set up. An hour of play, and one detail that should have been noticed before play began: that contrast is what makes the story memorable.
It offers a simple training suggestion: separate checking the playing setup from thinking about the game. Before the first move, check the board’s orientation and the arrangement of the pieces against the rules of the variant being played. Only then turn to plans and calculation.
That does not explain why the players in the anecdote overlooked the rotated board. It does suggest a useful order of preparation: first check what you are sitting at, then decide what to play.