Logidoku: Brain Puzzle

STUDIOFORTYTWO LTD

Contains adsIn-app purchases

About this game

Three puzzles, one daily brain workout. Place the cats on a colorful grid, fill the numbers in Sudoku, and solve a fresh Math Crossword every day.

Logidoku is made for short, focused sessions: a morning warm-up, a coffee break, ten quiet minutes before bed. Every puzzle has exactly one solution, and you reach it with logic, not luck.

CAT PUZZLE: ONE RULE, ENDLESS LOGIC
Put one cat in every row, every column and every color region. The catch: no two cats can touch, not even diagonally. You learn the rules in a minute, then the grids grow bigger and the regions trickier. This puzzle trains the skill of ruling things out and seeing the whole board at once.

SUDOKU: THE CLASSIC PLUS FOUR TWISTS
Fill the 9×9 grid so every row, column and 3×3 box holds the numbers 1 to 9. Start with relaxed grids and work up to puzzles that make you stop and think. Sudoku trains number patterns, focus and patience.

Know the classic by heart? Try the variants. Each one adds a single new rule that changes how you solve:
- Asterisk: the 9 cells that form a star shape must also hold 1 to 9
- Center Dot: the center cells of all nine boxes must also hold 1 to 9
- Windoku: four extra shaded 3×3 windows must also hold 1 to 9
- Consecutive: marks between cells show which neighbors are consecutive numbers, like 4 and 5

MATH CROSSWORD: A NEW PUZZLE EVERY DAY
Every day brings one new crossword made of equations. Fill in the missing numbers so every equation, across and down, is correct. It takes a few minutes and keeps your mental math in shape. Solve a puzzle each day to reveal the picture of the month and earn rewards along the way.

WHY MIX IT UP?
Doing the same puzzle every day turns into routine. Switching between shapes, number grids and equations makes your brain work in different ways. When one mode feels easy, another one keeps you sharp.

SEE YOUR PROGRESS
- Brain Score: an overall rating that grows as you solve, from Novice to Master
- Brain Skills: see which kinds of thinking you're getting stronger at
- Mental Sharpness: rises with every solved puzzle and drops if you skip days, so regular play really shows
- Achievements for streaks, milestones and your best results

BUILD A DAILY HABIT
- Brain Workout: three new tasks every day and a personal goal from 3 to 30 days in a row
- Daily Math Crossword: one puzzle a day, with past days of the month still open if you missed one
- Win streaks with rewards that grow at every checkpoint
- Weekly leagues: climb the leaderboard and move up to a higher league
- Reminders at the time you choose, so your workout fits your schedule

PLAY AT YOUR PACE
- Step-by-step tutorials teach each mode from scratch
- Stuck? Use a hint to open one cell and keep going
- Special tools help with the hardest grids
- Limited-time events add new goals and rewards

WHO IT'S FOR
Logidoku is for anyone who likes to think: Sudoku fans looking for something new, people who want a daily habit that's better than scrolling, and anyone who enjoys the moment a hard puzzle finally clicks.

Logidoku is free to play. It includes optional in-app purchases and ads. You can remove ads with a one-time purchase.

Start with one puzzle today. See how sharp you are in a week.

What’s new

First Release