Bisect
Tap the exact midpoint between two signals — no clock allowed.👆
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Play to set a score, then submit it to the board.
About Bisect
Bisect is a timing game that strips away every crutch: no clock, no progress bar, no beat to latch onto. Arm a round and, after a pause of anywhere from a third of a second to a second and a half, a cyan flash marks the start of an interval that will last somewhere between half a second and three seconds. Your job is to tap at its exact midpoint — and here is the cruel, wonderful part: the magenta end flash only fires if you have not tapped yet, by which point the midpoint is already behind you. So you are never measuring a gap you have seen; you are predicting the halfway mark of one you have not, and the result screen tells you afterwards, to the millisecond, how early or late you were. Grading scales with the interval, so landing within 6% of the half-length earns a Perfect worth 100, within 18% a Good, within 40% an OK, while anything wider, a tap before the start flash, or no tap at all costs one of your three lives. Consecutive hits stack a growing streak bonus. Newcomers tap on pure gut; regulars learn the range the intervals are drawn from and hedge accordingly. The run is endless, scored against your own best.
How to play
- Press Space, tap, or click to arm a round — after a short random pause a start flash fires, and an interval of unknown length begins.
- There is no visible countdown or progress bar between the two flashes — only your internal sense of time.
- Tap again exactly halfway through that interval — before it ends. Your tap ends the round immediately; the end flash only appears if you have not tapped yet, and a tap after it is always a miss.
- You have three lives — a false start, a miss, or a badly-timed tap costs one. The run ends when you run out.
Strategy & tips
- The screen stays completely blank between flashes on purpose — resist the urge to count out loud and instead judge the gap by feel.
- Because the end flash only comes after the midpoint, waiting for it never works — a steady, practised delay from the start flash scores better than reacting.
- A streak of good taps in a row builds a growing bonus, so consistency across rounds is worth more than one lucky perfect hit.
- Tapping too early is treated the same as tapping too late — aim to feel the gap shrink rather than guessing towards either end.
FAQ
How do you play Bisect?
Press Space, tap, or click to start a round. After the start flash, tap again at the moment you judge to be halfway through the interval — you have to predict the midpoint, because tapping after the end flash is too late. There is no visible timer.
Why is there no countdown or progress bar?
The blank screen is the entire point — Bisect tests your internal sense of elapsed time, not your ability to read a clock.
Does the game ever end?
There is no round limit — Bisect is an endless survival run. It ends only when you lose all three lives.