How to Solve Lighthouse Battleships Puzzles
Use number clues in a series of lighthouses to locate a given fleet of battleships. Ships may not touch each other or any lighthouses in any direction.
How to Solve Lighthouse Puzzles
Find a hidden fleet of single-cell boats. Lighthouses reveal all boats in their row and column. Boats may not be adjacent to other boats or lighthouses in any direction.
How to Solve LITS Puzzles
Place one tetromino in each region such that all of them are orthogonally contiguous, no tetrominoes of the same type are adjacent, and no 2×2 area of cells is covered.
How to Solve Logic Grid Puzzles
Using a list of clue sentences and your reading comprehension, find all matching sets of attributes in the grid.
How to Solve Marupeke Puzzles
Play Tic-Tac-Toe to a draw against yourself! Given a few starting placements, fill in the grid with Xs and Os such that there are never 3 in a row in any horizontal, vertical, or diagonal direction.
How to Solve Masyu Puzzles
Create a single closed loop which passes through all the circles, but not necessarily all the cells, without crossing itself or branching. Black and white circles have different rules about how the line of the loop passes through them.
How to Solve Math Ladder Puzzles
Change the top row of numbers into the bottom row of numbers with a series of addition and subtraction operations in each column. Each operation will always result in a single digit.
How to Solve Mathrax Puzzles
Fill in numbers from 1 to N (N is the size of the grid) such that there are no duplicates in rows or columns. Circles at intersections have a mathematical operation and a total that is the result for each pair of diagonally adjacent cells.
How to Solve Milk Tea Puzzles
Connect pairs of white “milk” circles with single black “tea” circles in T shapes that may not touch or cross each other.
How to Solve Minesweeper Puzzles
Using the clues given, mark all cells containing mines. Numbers indicate how many mines surround them. Unlike the computer game, you get to see all the clues when you start. Interestingly,