GRIDIGMA

Premium, ad-free logic-grid deduction puzzles where every answer is provably forced — and the game shows you why.

Read the clues, rule out what cannot be, and prove what must be. Every GRIDIGMA puzzle is verified by a solver that shows the reasoning behind each step, so a solution is never a guess. Free to play in your browser, with a new puzzle every day.

Puzzles

• Mural Paint Day
• Tool Locker Slips
• Botanical Press Line
• The Darkroom Line
• Repair Café Tags
• Harbor Kayak Launch
• Drone Launch Mats
• Lane Cards at the Swim Meet
• Moving Day Floors
• The Seed-Sorting Trays
• The Lamp-Tier Rota
• The Cellar Tasting Line
• Meteorite Records
• The Forest Echo Watch
• The Bell Tower Rounds
• The Ash Ridge Ledger
• The Headland Lights
• The Pier Telescopes
• The Polder Windmills
• The Regatta Morning
• Curtain-Call Strings
• The Restoration Rota
• The Summit Line Ledger
• Threads in the Archive
• Balloons Before Breakfast
• Shelter Strolls
• Voices on the Risers
• Promenade Scoops
• The Rope-Line Survey
• The Lyon Silk Ledger