Many classic logic puzzles. One clean app. No noise. No ads. Plays offline too.

PuzzleKing collects the pen-and-paper puzzles worth solving and gives each one
the room it deserves: a big, readable grid, tidy controls, and nothing blinking
at you while you think.

WHAT IS INSIDE

* Sudoku - the classic 9x9, with pencil marks for candidates
* Jigsaw Sudoku - same rules, irregular regions instead of boxes
* Binary - fill a grid with 0s and 1s, no three in a row
* Kakuro - a crossword built from sums
* Futoshiki - a Latin square wrapped in greater-than clues
* Nonogram - paint the picture hidden in the row and column numbers
* Cross Math - place 1 to 9 so every row and column hits its total
* Calcudoku - arithmetic cages over a Latin square
* Suguru - fill each region 1 to n, and no two equal digits may touch
* Pipes - rotate the tiles until the whole network joins up, no numbers at all
* Ball Sort - stack the colors into clean tubes

EVERY BOARD IS NEW

Nothing is shipped as a fixed puzzle list. Every level is generated and checked
the moment you open it, and every generated puzzle is verified to have exactly
one solution before you ever see it. No dead ends, no typos, no guessing at a
puzzle that was broken from the start.

THREE REAL DIFFICULTY LADDERS

One star, two stars, three stars are not a label on the same board. They are
three separate ladders per puzzle, with their own grids, their own levels and
their own progress. Finish the easy road and the hard one is still completely
untouched.

BUILT FOR THE WAY PEOPLE ACTUALLY PLAY

* Close the app mid-puzzle and it is exactly where you left it
* A timer and a personal best for every level, if you like racing yourself
* Hints when you are stuck: reveal three correct cells and check your work
* Big tap targets, high contrast digits, portrait one-handed play
* Works offline. On a plane, on a train, in a basement

NO ACCOUNT, NO ADS, NO NONSENSE

There is no sign-up, no login, no profile, no feed, and no advertising. Your
progress lives on your device. The app does not need the internet to work.

FREE, AND THEN ONE PURCHASE

The first 20 levels of every puzzle, at every difficulty, are free. That is 660
free boards before you are asked for anything. If you want the rest, a single
one-time unlock opens every level of every puzzle, forever. One purchase. No
subscription, no coins, no energy meters, no waiting.

Made for quiet minutes: a coffee, a commute, a waiting room, the last ten
minutes of the day.