Upload a screenshot of today's Zip puzzle, select the grid, and get the solution with animated step-by-step playback.
Place signatures.js next to this file and refresh.
Drag & drop an image here, or choose/paste one.
Selection is drawn on the scaled preview but cropped from the full-resolution source for matching.
Red dot = detected disk (must contain a number). Edit numbers inline. Tap thin gaps to toggle walls.