Artifacts

Slide a ball across a board collecting gems while avoiding mines, with no way to stop mid-slide.

Latin-square puzzle with arithmetic cages, similar to KenKen.

Place bulbs to light every square without bulbs lighting each other.

Slitherlink puzzle on regular and unusual grids, with a closed loop to draw.

Place magnetic dominoes so poles match the row and column counts and no like poles touch.

Color a map using four colors so no two neighboring regions share a color.

Minesweeper with custom board sizes, where the first click is always safe.

Fill cells to match numbers counting black squares in each neighborhood.

Rotate the tiles of a network until every piece is connected to the power source.

Slide rows and columns to join all tiles of a network into one connected net.

W3C validator that checks HTML documents for errors.

Divide the grid into regions of equal size following the number of walls around cells.

Nonogram-style puzzle where row and column clues reveal a hidden picture.

Draw a loop through black and white pearls following their turn and straight rules.

Peg solitaire: jump pegs over each other to leave as few as possible.

Shade squares so each numbered cell sees a stated number of white squares in its row and column.

Divide the grid into rectangles whose areas match the numbers inside them.

Link squares in a path using arrows so numbers run from start to end.

Shade duplicate numbers so none repeat in a row or column and white cells stay connected.

Slide whole rows and columns of a grid to put the numbers in order.

Fill the grid with diagonal slashes so number clues match the lines touching each point.

Sudoku in several grid sizes and variants, including jigsaw and killer styles.

Live-coding REPL for patterns that produce music in the browser.

Place a tent next to each tree so row and column counts match and no tents touch.