How to Solve Hashi Puzzles
Draw bridges between islands to create one connected group. Numbers on the islands indicate the number of bridges that connect to that island.
How to Solve Hitori Puzzles
Find and shade all duplicate numbers in rows and columns, leaving only unique digits. No shaded cell may be adjacent to another, and unshaded cells must form a contiguous area.
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 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 Paint by Pairs Puzzles
Link identical pairs of numbers with a number of cells equal to that number, including the start and end cells. Fill in those links to form a picture.
How to Solve Yagit Puzzles
Divide the grid into fenced regions, each containing only one type of animal. No empty regions are allowed.