Free daily math puzzle. Same puzzle for everyone worldwide. 9 languages. Use numbers and +, −, ×, ÷ to reach the target. Chain operations, think creatively. Sounds simple, it isn't always. Easy: 4 numbers (1–9), target 10–100 Hard: 8 numbers (1–15), target 300–800 5 attempts per day. Track your 🔥 streak, wins and games played. Independent stats for Easy and Hard. Available in 9 languages. Built by a biomedical researcher as a side project. More games coming if there's interest.