When a player's main time is used up, there's a fixed time limit for each single
move. Additionally there are several periods:
- When the player moves within time, the countdown jumps to its initial value, and the number of periods is not changed.
- When the player does not move in time, then the number of periods is decreased by one, and the countdown immediately starts again.
When a player has no periods and no time left, the game is lost.
Time limit format for Japanese byo-yomi (for example "J: 30d + 1d * 10"):
"J: M" : M=main-time, Absolute time (without byo-yomi)
"J: M + B * P" : M=main-time, B=Byo-yomi-time, P=Byo-yomi-periods
Time remaining format for Japanese byo-yomi:
"J: m (-)" : m main-time left (absolute time, no extra-periods)
"J: m (+ B * p)" : m main-time left + extra-time (B time per move and p extra byo-yomi-periods left)
"J: b (B * p)" : in byo-yomi (no '+'), b byo-yomi-time left + extra-time (B time per move and p extra byo-yomi-periods left)
"J: b (B * 0)" : in byo-yomi (no '+'), b byo-yomi-time left, last byo-yomi-period