A free Masyu puzzle in three sizes. Draw one closed loop through every pearl — straight through the white ones, turning on the black ones — and start a fresh board whenever you like. No sign-up, no download.
Tap between two cells to draw a loop segment. Thread every pearl and close the loop.
Every board is generated in your browser: a hidden loop is drawn first, then the pearls are placed to match it, so a solution always exists. Start on 6×6 to learn the turn rules, then step up to 8×8 and 10×10. If you like loop and path logic, try our Zip number path puzzle too.
Masyu is a pearl loop logic puzzle. You draw a single closed loop through cell centers that passes every pearl on the grid, obeying each pearl's straight-or-turn rule.
White pearls are straight-through: the loop does not turn on the pearl, but it must turn right before or right after it. Black pearls are turning points: the loop bends on the pearl and runs straight through the cells on both sides.
Yes. Boards are built from a hidden complete loop, so at least one full solution always exists. If you get stuck, tap a segment to cycle it, or use Undo and Reset.
Right-click a gap between cells, or long-press it on touch screens, to place an ✕ marker. Markers are notes for you — they never block the solution check.
Yes. Tap between cells to add a segment and long-press for an ✕. The page is static — nothing to install, no account, and your size preference stays in this browser.
No. Each cell on the loop has exactly two segments, and the finished board is one single closed ring. The solved check rejects branches and separate small loops.