Bitus Maxima

Select the target as fast as you can. Targets are drawn uniformly at random, so every correct hit carries log2(N − 1) bits and every mistake cancels a hit. One 60-second scored run per attempt.

Past runs →

Grouped tape

tape

N = 23 · 4.46 bits/hit

Type a random a–z and ; stream, typing-test style, shown in groups of 3–5 letters for rhythm, as a static page or a moving tape. Space, upper case and two- to five-letter chords are optional.

Numpad

numpad

N = 9 · 3.00 bits/hit

A true 3×3 grid on 7 8 9 / 4 5 6 / 1 2 3. Numpad or digit row both work.

Chords

chord

N = 36 · 5.13 bits/hit

Home-row keys alone or in pairs (8 + 28 = 36 symbols). More bits per hit, fewer hits.

Dual stream

dual-stream

N = 23 · 4.46 bits/hit

The grouped tape’s a–z and ; stream, shown as one vertical queue per hand to encourage alternation. Space and upper case are optional.

Chimeras

chimera

N = 552 · 9.11 bits/hit

Each target is a random string of 1 to K tape letters (a–z and ;, K = 1–9), typed in order and scored as one selection, so N grows as A + A² + … + A^K.