How to Solve Futoshiki 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. Inequality symbols between adjacent cells indicate which number is larger.
How to Solve Gokigen Puzzles
Place diagonal lines in every cell so that there are no closed loops. Circled numbers indicate how many lines touch that intersection.
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 Haunted Castle Puzzles
Place the required number of monsters in the grid. Numbers indicate the number of visible monsters from that point.
How to Solve Heyawake Puzzles
Color the specified number of cells in each region. Empty cells must form a single contiguous group.
How to Solve Hiroimono Puzzles
Fill in the stones with numbers to show the correct order to pick them up, moving from one stone to another by the grid lines.
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 Hoshi Puzzles
Fill the grid with the numbers 1-9 so that there are no duplicates in any large triangle region or any of the three possible rows for each cell. Rows are considered to cross the gap.
How to Solve Ichimaga Puzzles
Connect all the circles by darkening lines on the grid. Numbers indicate how many lines are connected. Lines may make no more than one right-angle turn between circles.
How to Solve Kin-Kon-Kan Puzzles
Place a diagonal mirror in one cell of each region. Matching letter-number combinations outside the grid indicate the start and end of beams that reflect off a given number of mirrors.