Sumday

Five number puzzles. One target each. Everyone in the world gets the same five.

You're given five tiles and a number to make. Combine any two tiles with +, −, ×
or ÷ and they become their result. Keep going until a tile equals the target.

That's the whole game. It gets hard fast.

Every puzzle has a par — the fewest moves anyone could possibly use. Hit par for
a green square, solve it the long way for a yellow one. Miss it and take the
white square on the chin. Five squares, one grid, share it however you like.

• A new set of five every day at midnight, the same for every player
• Streaks for showing up
• Endless mode when one round isn't enough
• Three hints a day when you're properly stuck, and the board warns you the
moment a target stops being reachable
• Every result is a whole number, and division is always exact
• No account, no ads, no timers pushing you to buy anything

Works completely offline. Collects nothing about you — no analytics, no
tracking, no network requests at all.