## Your specialist for logic puzzles.

Here you find a selection of the most popular logic puzzles. For each puzzle you need to find specific solving techniques and use different logical deductions. Some require topological analysis, whereas for others you need a lot of intuition or a good sense for numbers. Like this each puzzle has its very special appeal. Try it out!

Click on the sample puzzles in order to get more information about each puzzle type.

If you never before solved a puzzle, we suggest you read our introduction.

### A2Y

Create a chain from A to Y in alphabetical order

### Arrows

Find out at how many different numbers each arrow points

### Arukone

Link all pairs of equal letters

### Battleships

Find the right location of all hidden ships

### Binary Puzzle

Fill the grid only with 0 and 1

### Camping

Find the locations of tents, one for each tree located at its side

### Chiiki

Split the grid in regions belonging to the given letters

### Cows

Split the meadow in square regions so that every cows occupies one of them

### Domino

Find all the given dominoes not overlapping each other in the grid

### Endview

Fill some cells of the grid with letters according to the visibility information at the borders

### Eulero

Is Sudoku not challenging enough? Then try these two entangled ones!

### Galaxies

Split the night sky into galaxies starting from their symmetry centers

### Hakyuu

Fill the grid with numbers at a minimum distance from equal numbers

### Hashiwokakero

Link the islands of the archipel with the right numbers of bridges

### Hidoku

Make a chain of consecutive numbers in neighbouring cells

### Hikaku

Fill the grid with numbers obeying the greater/less-than operators

### Hitori

Black some cells according to special rules

### Honeycomb

The letters from A to F have to surround each brown cell

### Kakuro

Fill the grid with the numbers from 1 to 9 so that they give the right sums

### Kendoku

The product, sum, difference or quotient of each cage define the numbers

### Knossos

Reconstruct the floor plan of the palast of Knossos

### Loopy

Draw a closed loop covering all the (empty) cells

### Magnets

Find the right places and orientation for magnets and neutral plates

### Magyk

Find out which given difference belongs to which pairs of cells in consecutive rows

### Mastermind

Do you know the board game *Mastermind*? Now its your turn for the last guess

### Matrix

Each number defines who many cells have to be blacked in its row and colums together

### Metropolis

Find the location of differently sized building blocks

### Number Chain

Find one number chainfrom top left to bottom right

### Nurikabe

Build white islands surrounded by black walls

### Patchwork

Find the correct pattern for each of the patches

### Shikaku

Split the grid into rectangles of the size given by the numbers

### Skyline

Find the correct height of the skyscapers in each row and column

### Slitherlink

Find a closed loop which circumvents all cells containing numbers

### Slitherlink Specials

Find a closed loop which circumvents all cells containing numbers

### Squaring

Find areas bounded by squares of equal sizes

### Squiggly

It's like Sudokus with coulored regions instead of square blocks

### Stars

Fill each row, each column and each bordered area with exactly two stars

### Straights

Fill the white areas with consecutive numbers

### Sudoku

The original classic from Japan

### Border Sum Sudoku

Sudoku with sums of the border cells

### Chess Sudoku

Sudoku on a chess board: The cells have the eyes of the Queen

### Colour Sudoku

Sudoku with colored cells

### Comparison Sudoku

Sudokus with relations to neighbouring cells

### Groupsum Sudoku

Sudokus with sums of several 2x2 cell regions

### Killer Sudoku

Sudokus with additional "sum cages"

### Kropki Sudoku

Sudoku with black and white spots giving additional hints

### Samurai Sudoku

Several overlapping Sudokus forming one big puzzle

### Star Sudoku

Sudoku in star shape and triangular blocks

### Sudoku Variants

Sudoku with irregular or additional (colored) regions

### Sudoku in other sizes

Sudokus in sizes 4x4 up to 25x25

### Symbol Puzzle

Ecah symbol stands for a certain digit. Find out for which one!

### Tatami

Each area should contain the first N numbers.

### TrainTrack

Link village A and B with a railway track

### Trinudo

Split the grid into areas of one, two or three cells

### Tripletts

Either three equal or three different symbols go into each area

### Tubes

Link the connectors with as many pipes as is indicated by the number inside

### Twist

Find out which numbers "tell the truth" and which are "lying"

### Winery

Fill the bottles with red wine up to the right level

### Word Mix

Find all given words hidden in grid