Books

Cliko Puzzle Books

The puzzles behind Cliko Games, printed as paperbacks on Amazon.

Why the name on the cover is Tauheed Farooq

Hi all, our books are written under a nom de plume, Tauheed Farooq, as a homage to the founder's father. They shared a very close bond, and a lot of Mohammed Tauheed's philosophies have been shaped by the life lessons taught by his parents. So all the books are dedicated to Farooq Ur Rahman, right from the cover page.

What every grown-up book promises

  • 108 puzzles in six levels of eighteen: Gentle, Easy, Ordinary, Tricky, Hard and Fiendish.
  • Exactly one solution for every grid, and every grid can be finished by reasoning alone. No guessing.
  • Checked twice. A second program that never saw the answer counts the solutions from the printed clues.
  • Honest difficulty. Each grid is rated by a solver that works one deduction at a time, the way a person does.
  • One grid to a page, with every solution at the back.

The kids books are shorter: picture lessons, then 52 to 60 puzzles in big, clear print, each with exactly one answer and every answer at the back.

The series

Tap a series to open it, and tap a cover to see the book on Amazon.

Sudoku by Cliko5 books out

Each level holds twelve Classic grids, three Diagonal X and three Jigsaw.

Cover of Sudoku by Cliko: Book 1
Book 1The puzzles which keep evolvingView on Amazon
Cover of Sudoku by Cliko: Book 2
Book 29 digits, a world of amazementView on Amazon
Cover of Sudoku by Cliko: Book 3
Book 3The numbers keep comingView on Amazon
Cover of Sudoku by Cliko: Book 4
Book 4Solve it one grid at a timeView on Amazon
Cover of Sudoku by Cliko: Book 5
Book 5Every puzzle poses a question. Do you have the answer?View on Amazon

Play Variant Sudoku free online

Kakuro by Cliko3 books out · 2 coming soon

Every clue is the total of a run of squares, filled with the digits 1 to 9 and no repeats.

Cover of Kakuro by Cliko: Book 1
Book 1Crosswords written in numbersView on Amazon
Cover of Kakuro by Cliko: Book 2
Book 2Every sum has its squaresView on Amazon
Cover of Kakuro by Cliko: Book 3
Book 3Add it up, one run at a timeView on Amazon
Cover of Kakuro by Cliko: Book 4Coming soon
Book 4The clues always add up
Cover of Kakuro by Cliko: Book 5Coming soon
Book 5Small sums, big puzzles

Play Kakuro free online

Calcudoku by Cliko1 book out · 4 coming soon

Every row and column holds each number once, and each cage makes its target by adding, subtracting, multiplying or dividing.

Cover of Calcudoku by Cliko: Book 1
Book 1Sums, products and one right answerView on Amazon
Cover of Calcudoku by Cliko: Book 2Coming soon
Book 2Every cage tells you something
Cover of Calcudoku by Cliko: Book 3Coming soon
Book 3Do the maths, fill the grid
Cover of Calcudoku by Cliko: Book 4Coming soon
Book 4Count on every cage
Cover of Calcudoku by Cliko: Book 5Coming soon
Book 5One grid, every operation

Play Calcudoku free online

Puzzles for Kids by Cliko2 books out

Full-colour books for ages 6 to 10. Picture lessons teach each puzzle step by step, every puzzle has exactly one answer, and all the answers are at the back.

Cover of Sudoku for Kids by Cliko
Sudoku for KidsPicture lessons and 52 puzzles, from 4×4 to 9×9View on Amazon
Cover of Math Puzzles for Kids by Cliko
Math Puzzles for Kids60 adding puzzles: Mad Add, Kakuro and CalcudokuView on Amazon

Play Mad Add free online

See all the books on Amazon

Coming soon

New series we are working on. Titles and covers may change before they are published.

Mad Add by Cliko1 book planned

Cross out the extra numbers so every row and column hits its target.

Cover of Mad Add by Cliko: Book 1Coming soon
Mad Add by Cliko: Book 1Cross out the extras. Hit every target.

Play Mad Add free online

Puzzle Mix by Cliko1 book planned

Several kinds of logic puzzle in one book.

Cover of Puzzle Mix by Cliko: Book 1Coming soon
Puzzle Mix by Cliko: Book 1Five kinds of logic. One book.
More puzzle series7 books planned

Seven more logic puzzles, each planned as its own series of 108 puzzles in six levels.

Cover of Takuzu by Cliko: Book 1Coming soon
Takuzu by Cliko: Book 1Nothing but noughts and ones
Cover of Suguru by Cliko: Book 1Coming soon
Suguru by Cliko: Book 1Small cages, no two neighbours alike
Cover of Futoshiki by Cliko: Book 1Coming soon
Futoshiki by Cliko: Book 1Greater than, less than, one answer
Cover of Slitherlink by Cliko: Book 1Coming soon
Slitherlink by Cliko: Book 1One loop, drawn through the dots
Cover of Nonogram by Cliko: Book 1Coming soon
Nonogram by Cliko: Book 1Pictures hidden in the numbers
Cover of Hashi Bridges by Cliko: Book 1Coming soon
Hashi Bridges by Cliko: Book 1Islands, bridges, one network
Cover of Cryptogram by Cliko: Book 1Coming soon
Cryptogram by Cliko: Book 1Famous words in disguise
More Puzzles for Kids1 book planned

Smaller grids, bigger print and a gentle start, for young solvers.

Cover of Futoshiki for KidsComing soon
Futoshiki for KidsAges 7 to 10
Large Print and Gentle Puzzles3 books planned

Big, clear print and one puzzle to a page.

Cover of Large Print Sudoku by ClikoComing soon
Large Print Sudoku by ClikoGentle puzzles in big, clear print
Cover of Gentle PuzzlesComing soon
Gentle PuzzlesLarge print gift edition, in hardcover
Cover of Puzzles to Enjoy TogetherComing soon
Puzzles to Enjoy TogetherA large-print book to share

A note on these links

These are the founder's own books. The Amazon links are plain links, not affiliate links: when you buy a book, he earns the author's royalty and nothing else. The Disclaimer & Disclosures page has the details.