Eric Fox's Puzzles

      Akari (Left):      Place lights in some cells so that every cell is illuminated. Lights illuminate the cell they’re in as well as all cells seen in a straight line horizontally or vertically, not obstructed by a black cell. Lights may not illuminate each other. Clues represent the number of lights in the (up to) four cells surrounding the clue.     Shakashaka (Right):      Shade a right triangle in some empty cells, each of which occupies exactly half the cell it’s in. Each unshaded area must be rectangular in shape. A number in a cell represents how many of the (up to) four cells orthogonally adjacent to the clue contain triangles. Solve online                                                                       Solve online

     Star Battle (Left):      Place stars into some cells such that each row, column, and outlined region contains exactly N stars. The value of N is given outside the grid. Stars may not touch one another, not even diagonally.      LITS (Right):      Shade one tetromino of cells in each region so that all shaded cells form one orthogonally connected area. Two tetrominoes of the same shape may not share a bold border, counting rotations and reflections as the same. No 2x2 region may be entirely shaded. Solve online                                                                  Solve online

      Kropki (Pairs) (Left):      Place a number from 1 to N into each cell so that each row and column contains every digit with no repeats, where N is the side length of the grid. Pairs of orthogonally adjacent cells marked with a black dot must contain numbers with a 1:2 ratio. Pairs of orthogonally adjacent cells marked with a white dot must contain consecutive numbers.     Masyu (Right):      Draw a non-intersecting loop through the centers of some cells that passes through every circle. The loop must turn on black circles and travel straight through the cells on either side. The loop must go straight through white circles, and turn in at least one of the cells on either side. Solve online                                                                  Solve online...

     Tapa (Left):      S hade some cells so that all shaded cells form one orthogonally connected area. Clues cannot be shaded, and represent the lengths of the blocks of consecutive shaded cells in the (up to) eight cells surrounding the clue. No 2x2 region may be entirely shaded.      Nurikabe (Right):      Shade some cells so that all shaded cells form one orthogonally connected area. Clues cannot be shaded, and every orthogonally connected area of unshaded cells contains exactly one clue, the value of which represents the size of the area. No 2x2 region may be entirely shaded. Solve online Solve online