Master Einstein's 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. ✅ 49 Achievements: from your first solve to 5,000 puzzles, daily-challenge streaks and hours at the grid ✅ 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 foll...