Snake
A snake of calculator keys eats blue digits. Each digit adds to the sum on the green LCD.
This is classic Snake in a calculator skin, not an arithmetic lesson. Also try Tetris and Minesweeper.
Keypad
SUM 0 BEST 0
Result
Start a round. The LCD will keep the sum of eaten digits.
How to play
- Pick a board and a tempo, then Start. The snake of keys starts moving.
- Steer with arrows, WASD or a swipe. Eat the blue digit keys.
- Each digit adds to the LCD sum. A wall or yourself is an error.
Formula
score = sum of eaten digits (1–9). Tempo 1–6 sets the starting gap. Each digit shortens it by 4 ms, not below that tempo’s floor.
Frequently asked questions
How is the score counted?
Each eaten key carries a digit from 1 to 9. The score is the sum of those digits. The best sum stays in the browser.
How do I steer?
On a computer use arrows or WASD. On a phone swipe the board or use the pad below.
Is this the usual Snake?
The rules are classic: a wall or your own body ends the round. Four grids: 10×10, 16×16, 24×16 and 24×24. Tempo 1 to 6 shortens the gap between moves.
Does the score leave the browser?
No. The round is local. The record sits in localStorage.
Knowledge sources
This is play on a calculator keypad, not sports training and not a bet.
Page updated in 2026.