The tournament hall was quiet except for the click of captured pieces. On the checkerboard, one green piece falls each round — turned red the moment it's taken. But the old rule still holds: after a piece has been red for exactly two rounds, it earns promotion to yellow. In round 2 they took the piece at row 0, column 2. In round 3, row 2, column 2. In round 4, row 1, column 1 fell — and any piece red since round 2 finally got its yellow crown.