Free browser game
One stroke. One score. A deceptively simple test of steady hands and quiet nerves. Draw a circle as close to perfect as you can — no tools, no do-overs.
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How to play
Press and hold (or click and drag) to trace the ghost circle in one continuous stroke. Release to submit. Your score is an accuracy percentage — 100% means a geometrically perfect circle.
Tip: move in one smooth sweep. Don't try to correct mid-stroke — commit to the motion.