Catkuro: Cozy Cat Kakuro

Nine cats, one painted home, and a few cozy number puzzles along the way.

Catkuro is kakuro, the number crossword, turned into a journey. Fill each run of white squares so it adds up to its clue, and never repeat a digit inside a run. That is the whole rule. Pure logic, no guessing, and nothing harder than adding. Start with four feline friends, bring five more home through Act 1, then fill their home with cozy places and favorite things.

STARTS TINY. GROWS WITH YOU.
Your first board is a handful of squares and the digits 1 to 4. The story adds a digit here, a row there, a longer run when you are ready, so by the final chapter you are solving grids that would have looked impossible on day one, and they feel like the natural next step. You do not need to know how to play kakuro. The path teaches you.

A JOURNEY IN FIVE ACTS
Twenty-five chapters in five storybook scenes, and a trail of paw prints that fills in as you go. Act 1 brings five more cats home. The later Acts fill the house with cozy places and favorite things. Every chapter ends with something new in the scene, a little confetti, and one more reason to solve the next board.

YOUR CLOWDER
Each cat has a name, a color, and a personality, and they are with you on every board: the cats are your digits, right there on the keypad. Four are already home, in full color. Act 1 brings the other five. Until then, the ones you have not met yet wait in silhouette.

THEN THE WHOLE LIBRARY OPENS
Finish the story and all four Free Play tiers open at once, from Kitten Steps to Purrfect Puzzlers, with 2,000 more kakuro puzzles and grids up to 15x15 for the evenings you want to sink in. Every one is free, and there is no limit on how many you solve.

A DAILY CHALLENGE IN FREE PLAY
One puzzle a day, the same for everyone on the same date, with no account and no connection needed. Keep a streak going for as long as you like.

EXACTLY ONE SOLUTION, BY LOGIC ALONE
Every grid is checked before it ships: one answer, no dead ends, never a point where you have to try a number and see.

NO AD INTERRUPTS YOUR SOLVE. EVER.
While a puzzle is open, the screen is yours. No banner, no pop-up, no "watch this to continue". Optional rewarded help is always your choice: reveal the selected cell or fill the grid with pencil marks. Deduction hints remain free. You never have to ask. Ads appear between puzzles and on the menus, and that is what keeps everything free.

TOOLS THAT TEACH
Pencilmarks in five colors for chasing more than one idea at once
A notes mode, so inking an answer never wipes your pencilmarks
A combination row showing every way the current clue can be made
Hints that explain the deduction, then leave the move to you
Unlimited undo and redo

MADE TO BE COMFORTABLE
Play every puzzle offline. No account or sign-up required
Pinch to zoom, one tap to snap the board back
Larger numbers and adjustable error checking
Made for phones and tablets, with a layout for each
Your best time on every puzzle, kept on your device

ONE PURCHASE, IF YOU CHOOSE. NEVER A SUBSCRIPTION.
The free app is the whole game. One optional purchase permanently removes banners and interstitial ads. Optional rewarded help remains available whenever you ask for it. Never a subscription.

Kakuro is also called cross sums or the number crossword. If you love sudoku, killer sudoku or nonograms, or you just want a puzzle that is happy to see you, the cats are ready when you are.

Recent changes:
Catkuro is here! Solve cozy kakuro puzzles, adopt nine cats, and give them a home full of comfy corners. Then unlock 2,000 more puzzles and a daily challenge. No ad ever interrupts a solve. Purr-fect.