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Featured Puzzle: One or All #5 – Monster Mash
Add Symbols | Featured Puzzles | One or All

Featured Puzzle: One or All #5 – Monster Mash

After a late night working in the lab, you looked out from the balcony and found an eerie sight! Three types of local monsters have begun arranging themselves into groups. The rules seem pretty simple, but where will the rest go?

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Featured Puzzle: Retrograde Battleships #2
Cell Shading | Featured Puzzles | Retrograde Battleships

Featured Puzzle: Retrograde Battleships #2

Hidden in this grid is a specific battleship fleet, pictured below. It contains a Carrier, two Battleships, three Cruisers, four Destroyers, and five Submarines. Given that no ship may be adjacent to another in any direction, can you deduce the correct positions?

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Featured Puzzle: Retrograde Battleships #3 – Candy Box
Cell Shading | Featured Puzzles | Retrograde Battleships

Featured Puzzle: Retrograde Battleships #3 – Candy Box

Everyone loves candy, so you picked up a gift box. The problem is, they only want a specific set of pieces, and none of them can touch each other, even diagonally. Can you deduce which of the possible placements to fill in with the candy that fits their preference?

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Snake Zombie Puzzle
Cell Shading | Featured Puzzles | Lines and Paths | Snake

Featured Puzzle: Snake #1 – Escape the Zombie Horde!

Your town has become the latest target of the zombie horde! Make your getaway through the sewer tunnels! You know the manholes where you will enter and exit, but you need to figure out the correct path to take.

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Featured Puzzle: Snake #2
Cell Shading | Featured Puzzles | Snake

Featured Puzzle: Snake #2

When they’re not in your boot, snakes are often found sunning themselves in some peaceful place. In this grid, you can see the head and the tip of the snake’s tail. Can you safely uncover the rest of its body?

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Featured Puzzle: Snake #3
Cell Shading | Featured Puzzles | Snake

Featured Puzzle: Snake #3

When they’re not in your boot, snakes are often found sunning themselves in some peaceful place. In this grid, you can see the head and the tip of the snake’s tail. Can you safely uncover the rest of its body?

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Featured Puzzle: Stone on Stone #1
Cell Shading | Featured Puzzles | Stone on Stone

Featured Puzzle: Stone on Stone #1

As you might have noticed by now, I love the various cell-shading puzzles. Today, we’re taking a look at another Nikoli creation – Stostone. In English, it’s generally known as Stone on Stone. Like Heyawake, you must shade cells according to the numbers in the regions, but there are a few unique requirements.

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Featured Puzzle: Stone on Stone #2
Cell Shading | Featured Puzzles | Stone on Stone

Featured Puzzle: Stone on Stone #2

Today, we’re stacking rocks! Stone on Stone is a cell-shading puzzle, in which your goal is to find hidden blocks of contiguous cells.

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Solved Hitori Puzzle
Cell Shading

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.

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Solved Lighthouses Puzzle
Add Symbols | Solving Guides

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.

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