Logic Riddle vs Stopko

Master logic riddles: Pure deduction game. No guesses. Played and loved by millions since 2013. 5,000+ FREE puzzles. Compete live. Crush leaderboards. Clues like: "German owns a dog. The one who drinks coffee does not have a fox" • Endless Free Content: 5K+ single player logic puzzles – zero paywalls • Daily Fresh: 15 new Zebra Puzzles every day • Live Competition: Compete real-time worldwide – same puzzle, fastest wins. Rank in leaderboards. • Scale Up: Easy 4x4 to massive grids • Tutorial + Tools: Guided first solve + a clue filter that hides what you have already ruled out • Color Themes: Light, Dark and a range of colors – pick the one that suits the room you are in • New Modern Layout, optional: keeps the full clue list and the filter inside the match, so everything sits on one screen • Portrait or Landscape: Turn the phone sideways and the whole board follows • Built for Thumbs: Tap to cross out, hold to confirm – the grid does the bookkeeping NEW – TWO SHORTCUTS WORTH LEARNING • Drag the element to the clue panel to view clues of that element • Click the element in the clue panel to go to the next clue of that element Deduce the full grid. Logic lovers: this is your next obsession. Tutorial Video: https://www.youtube.com/watch?v=0bpjrJRZi9Q Community: https://www.facebook.com/groups/288035414684910/ Support: logic.ios@rottzgames.com Download free. Sharpen your edge today!

Stopko is a logic puzzle you finish by reasoning. You get a short story, a grid and a list of clues, and from those you can work out who has what. Without guessing once. Every one of the 400 puzzles was checked by the solver that built it. The solver proved two things: that exactly one answer fits, and that you can reach it by pure deduction. No clue is spare either — cover any one of them and the puzzle can no longer be solved. What is in Stopko: • 400 puzzles across five chapters, from three categories up to five • six themes with their own story: a café, allotments, a block of flats, a race, a library, a market • a hint that first names the clue which settles the next square, and only fills the square in if you press it again • automatic crosses, undo, and a higher contrast mode for reading the grid • English, Slovak and Czech The app contains no ads, needs no account, and works offline. The optional Night Observatory adds 60 new deduction puzzles with a one-time purchase. The original 400 puzzles and hints stay free.