Solvana: Daily Logic Puzzles

One logic grid a day. The same grid everyone else gets. Solvana builds each day's puzzle out of the date itself, so the grid you open on a Tuesday is the grid every other player opens on that Tuesday. Solve it on the day it appears and your streak grows. Fall behind and nothing is lost: every past day stays in the calendar, all the way back to 1 January 2026, and you can replay any of them whenever you like. Tomorrow's grid stays shut until tomorrow. THIRTEEN KINDS OF PUZZLE Mosaic, Nonogram, Binairo, Sudoku, Futoshiki, Skyscrapers, Number Chain, Hitori, Tents, Light Up, Kakurasu, Numberlink and Shikaku. Each is a different rule on the same square grid, and each has its own colour, so you know what you are looking at before you read a word. YOU DO NOT NEED TO KNOW THEM ALREADY The first time a type comes up, the board dims and gives you its rule in one sentence, then points at the first move and waits while you make it. Every type also keeps a rules page one tap away, for the day you come back and need reminding. A CAMPAIGN TO CLIMB Three short lessons, then more than 240 numbered levels that climb from grids you finish in a minute to ones that take a while. Opening a campaign level uses one of five lives, and lives come back on their own over time. The daily puzzle never uses one, and the two halves never block each other. FOUR WAYS TO PLAY A GRID Tap a cell to fill it, or drag to sweep a whole row at once. Type numbers on a keypad. Drag paths and rectangles across the board. The input matches the puzzle, rather than the other way round. THE BOARD DOES THE BOOKKEEPING A clue that no longer adds up is flagged the moment it breaks. A clue you have satisfied is struck out. A grid finishes itself as soon as every clue is met. You are left to do the thinking, not the checking. BUILT TO BE QUIET Solvana requests no permissions at all. It has no internet permission, so it works the same on a plane as it does at home. There is no account and no sign-in. Every mark on the screen is drawn by code, so there are no pictures or sounds to download. MADE TO BE READ Colour is never the only signal: cell states differ in brightness as well as in hue, and a ruled-out cell carries a dot. If your system asks for reduced motion, Solvana turns its animations off.