THE EXACT RULES
Targets n=1..30 shrink from 64 px to 26 px and are placed
70–(120+210·(n-1)/29) px from your last click, so the
indexing difficulty ID = log2(D/W + 1) rises smoothly. The per-target
budget is max(850, 1.6 · (110 + 190 · ID)) ms, which is 1.6×
the Shannon-form predicted movement time at every single level, so a normal player always has
60% headroom. FAIL = the budget runs out on any target.
WIN = all 30 targets clicked in time.
Best ID is kept in localStorage.

Draw one freehand circle and get scored on how round it really is.

Click as many shrinking targets as you can in 30 seconds. Real canvas hit detection with hits, shots and accuracy.

Wait for green, then click. Five rounds, no false starts, best time kept.

Draw one freehand circle and get scored on how round it really is.

One-button timing: hop across seven lanes of drifting logs to the nest.

Minesweeper on a hexagon grid, where every number can read up to six.

Place deflectors to bounce the beam into the ring. Every board is solvable.

Assign values to a circuit so every junction balances. One answer per network.