G-08 ・ Perception ・ 1–3 min

Mekiki — Measure by eye

A measuring-by-eye game: look at the lines, angles and shapes, then drag to make what the prompt asks — a 90° angle, half the length of the white line, a circle with the same area as a square. The moment you let go, the true answer is drawn in gold and your error is shown as a number, like “3.2° off”. 10 seconds per question, 10 questions per set, and your best total is saved.

How to play

  1. Read the prompt at the top (e.g. “Make a 90° angle with the white line”). White is the reference; the glowing part is yours to move
  2. Drag on the screen to move the glowing line, point or circle. Your answer locks in the moment you let go
  3. The gold dashed line is the true answer. You get your error and a score (up to 100 per question). 10 seconds each
  4. Six kinds are mixed: angles, bisecting, parallel lines, length ratios, circle centres and equal-area circles. Your 10-question total is saved

Keyboard: ←→↑↓ adjust (Shift for bigger steps) / Enter or Space lock in & next / R restart the set

More games

  • Taikan10 second challenge — stop at exactly 10.00
  • MitsukeSpot the odd one
  • KasaneLayer the colours
  • MizuyureMake the ripples arrive together

← All gamesGuideMade by: First CH LLC