Str8ts Solver vs Quilt

Jeff Widderich had the idea for Str8ts in 2008. Together with Andrew Stuart, he developed a new puzzle that is a successful successor to Sudoku. It is a puzzle where you have to enter the numbers 1 to 9 in the fields, where each digit may occur only once per line and column. With the app you can daily download new puzzles and solve them for free. There are puzzles in different difficulty levels, so that everyone will find something for their level of knowledge. If you can not find a solution, the integrated solver helps to find the next steps. The integrated solver is able to solve even the most extreme str8ts puzzles with a backtracking algorithm. So far, we've only found two puzzles where the one-step backtracking algorithm did not find a solution and needed support from the user. As a further function, you can even enter puzzles, which are available for example in printed form, by hand. An import via a text format is also possible. We thank Jeff Widderich and Andrew Stuart, who gave us permission to use the name "Str8ts". A highlight, of course, is the link from Andrew, through which he daily provides us with new puzzles for the app.

Every day, one board. Quilt is a cozy daily logic puzzle where every solve becomes a handmade patchwork. Split the grid into rectangles — square, wide, or tall — so every cell belongs to exactly one patch, with no gaps and no overlaps. The clues tell you each patch's size and shape. The rest is pure, calm logic. If you love Shikaku, nonograms, or a good number puzzle, this is your new daily ritual. ONE BOARD A DAY The same board for everyone, worldwide. Solve today's puzzle, build a streak, and watch your gallery fill with finished boards. Every board is guaranteed solvable by logic alone — you will never have to guess. BUILT TO FEEL CALM No pressure, no clutter, no ads. Just a clean grid, quiet haptics, and the warm-paper calm of a finished patchwork. Solve at your own pace. TWO WAYS TO PLAY Daily: one curated board every day, free for everyone, with a finished puzzle you can share and a streak to keep. Endless: unlimited boards in five sizes — from small to sprawling XXL grids you pinch-zoom across — and three difficulties, each with its own character. Daily is free forever. A one-time Heirloom purchase unlocks unlimited Endless play, your full gallery, the calendar to replay any past daily, every fabric palette, and every app icon. No subscriptions, no ads. FEATURES • A fresh, hand-tight daily puzzle — identical worldwide • Every solve becomes a patchwork you can keep, revisit, and share • Guaranteed solvable by logic, never by luck • Stuck? A smart hint shows a patch you can deduce — for a small time penalty • Build a daily streak, track your stats, and set an optional daily reminder • An optional Game Center daily leaderboard, if you like a gentle race • Plays fully offline Tile the board. Fill the gallery. Come back tomorrow.