Featured Puzzle: Hashi #3
Connect all of the numbered islands into a single group, using a series of bridges. No more than two bridges may connect any pair of islands.
Featured Puzzle: Heyawake #3
Shade cells in each region equal to the number given. If a region has no number, it may have any number of shaded cells, including zero. The remaining unshaded cells must form a single orthogonally contiguous area.
Featured Puzzle: Hoshi (Star Sudoku) #2
Fill the triangles in the grid with the numbers 1-9 so that there are no duplicates in any large triangular region or along any stripe of cells, even those that skip over the middle.
Featured Puzzle: L.I.T.S. #3
Shade four cells in each region to place exactly one L, I, T, or S-tetromino there. Shaded cells form one orthogonally contiguous area.
Featured Puzzle: Lighthouses #3
Hidden somewhere in this grid are a group of single-cell tugboats. Can you use the clues provided by the lighthouses to find them all?
Featured Puzzle: Masyu #3
Draw a single loop which passes through all circles without branching or crossing itself.
Featured Puzzle: Mathrax # 2
Mathrax originated on the German puzzle website janko.at. Fill in numbers from 1 to 9, such that no row or column contains any duplicate numbers. Sounds pretty normal so far, right? Now let’s add math!
Featured Puzzle: Milk Tea #3
There’s just something about a warm cup of tea. Somehow, it just makes the world feel calmer. Personally, I prefer a common black tea with sugar, but there are many cultures around the world for whom milk is an absolute requirement. In Japan, Milk Tea is one of many Nikoli puzzles.
Featured Puzzle: Minesweeper #2
Using the clues given, mark all cells containing mines. Unlike the computer game, you get to see all the clues when you start.
Featured Puzzle: Miti #2
A common puzzle mechanic involves creating a loop that passes through every cell of the grid. In most of them, you have to draw a line through the centers of each cell, with restrictions based around numbers, circles, or blocked cells. Miti works a little differently. Yes, your goal is still to create a single looping path that passes through all cells. However, this time, you’re drawing the walls, not the path.