We had two chess players in the squad, and they were once persuaded to play a show match blindly. A bunch of people were filled in the room, a board was placed in the middle on the board so that everyone could watch the party, and they lay on opposite beds facing the wall. In the middle of the game one of the chess players thought for a long time, everyone in anticipation of the especially astute move held his breath, until finally he turned on his back and grabbed loudly.