How to Solve Akari Puzzles
Place light bulbs to illuminate every cell in the grid. Clues indicate the number of orthogonally adjacent bulbs.
How to Solve Alternate Corners Puzzles
Draw a single closed loop that passes through every cell without branching or crossing itself. It makes a right-angle turn in every circle, and exactly one turn between each pair of circles.
How to Solve Arrow Maze Puzzles
Label all the arrows with a number from 1 to X (X is the highest possible number) showing the correct sequence of arrows. Each arrow points to the next in the sequence, but it’s not necessarily adjacent.
How to Solve Arukone Puzzles
Connect each pair with a line that only travels orthogonally. These paths do not cross and might not use every cell in the grid.
How to Solve Battleships Puzzles
Place a fleet into the grid using the clues around the edge. Ships may not touch each other in any direction.
How to Solve Bricks Puzzles
Place numbers from 1 to N (N being the size of the grid) such that there are no duplicates in rows or columns. Each brick must have both an odd and an even number.
How to Solve Calcudoku Puzzles
Place numbers from 1 to N (N being the size of the grid) such that there are no duplicates in rows or columns. Each region has a total that must be reached by applying an operator to all digits in the region.
How to Solve Combination Lock Puzzles
Use clues to solve a code between 3 and 5 digits long.
How to Solve Comparison Sudoku Puzzles
Fill in the grid with the numbers 1-9 such that there are no duplicates in any row, column, or 3×3 region. Inequality symbols between adjacent cells indicate which cell has the greater number.
How to Solve Domino Hunt Puzzles
Divide a grid of numbers by locating the correct position for all possible dominoes in a given set.