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Initial Release
Fill the board 1 to N. Every step touches the last. One solution, every time.
Chain is a number-path puzzle with one rule and no luck in it. Every board is a shape, not a rectangle — a diamond, a ring, a blob with a jagged edge. Fill every empty cell so the numbers run 1, 2, 3 and on up to the last one, with each number touching the one before it. Diagonals count. Some numbers are printed for you; the first and the last always are. Every puzzle has exactly one solution, and every puzzle is checked for that before you ever see it. There is no guessing, no scoring system to game, and nothing to wait for. A GAME THAT RESPECTS YOUR TIME • Five difficulties, from a gentle 24-cell Easy to an 11x11 Master • A new Daily puzzle every day, the same one for everybody • Streaks, best times per difficulty, and a calendar you can fill in • No timers pushing you, no lives to run out of, no energy meter BUILT TO BE PLAYED WITH ONE THUMB • Tap a number to arm it, then trace the path — or use the number pad • Undo and erase are free and unlimited • Pinch to zoom and drag to pan on the bigger boards • Reduced motion and haptics toggles, and a mute switch THE RIBBON As you solve, a line of light joins the numbers you have placed. Disconnected fragments grow toward each other, and the moment two runs merge a pulse travels the whole length. Finishing sends that pulse from 1 all the way to the end. Chain works offline. Your progress is stored on your device and nowhere else.