Open Run — boards without end. No clock, no score.

Sets — race a fixed count of boards. Set of 5 drops your best and worst times; efficiency counts them all.

Blocks — solve as many boards as the clock allows. A board caught by the horn counts fractionally.

Survival — no clock. A budget of 15 wasted moves; when it's spent, the run ends. Verify (−2) buys a clean/fault reading, Concede (−5) buys out of a board. The number above the board is boards survived. Menu parks the run — pick it back up here.

Racing — every scored run has a seed, shown when you share. A seed carries its mode: enter a friend's seed here, press Enter, and you're in their exact game with identical boards.

Color marks shape, nothing more. Two blocks of the same color are the same shape. The colors carry no clue about where a block belongs.