Eric Fox's Puzzles

       Shade some cells so that all shaded cells form one orthogonally connected area and each orthogonally connected area of unshaded cells is in the shape of a square. Cells with black circles must be shaded, and cells with white circles must not be shaded. No 2x2 region may be entirely shaded. Solve online

      Here's a set of three 9x9 Tapa puzzles I made. Enjoy!      Shade 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. Solve online Solve online Solve online

       Shade some cells to form a non-intersecting path which does not touch itself, not even diagonally. Black circles must lie on one end of the path. White circles must lie somewhere along the path, but not at an end. A number outside the grid represents how many cells in the corresponding row or column are shaded. Solve online

       Shade some dominoes of cells so that every region contains exactly two shaded cells. Shaded dominoes may not touch orthogonally. Solve online

       Shade some dominoes of cells so that every region contains exactly two shaded cells. Shaded dominoes may not touch orthogonally. Solve online

    Not to toot my own horn, but each time I revisit this genre I'm surprised how much I like it! I hope you enjoy the deductions hidden in this puzzle.        Divide the grid into 1x2 and 1x3 regions. Borders must separate two different regions. Borders with white dots separate regions with the same size and orientation. Borders with black dots separate regions with neither the same size nor the same orientation. Borders with grey dots separate regions with either the same size or the same orientation, but not both. Solve online

      Here's another Tapa puzzle, one of my favorite genres! I'm quite pleased with one particular logical step here, as well as the circular layout.      Shade 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. Solve online

      Here's another big loop genre mash-up!     Draw a non-intersecting loop through the centers of some cells so that the rules of each genre are met.     Country Road (Top left):     Each Country Road region must be passed through exactly once.  A number in a region represents how many cells in the region are visited by the loop. Orthogonally adjacent cells in different Country Road regions may not both be unused.     Balance Loop (Top right):     The loop must pass through each circle.  The straight line segments coming out of a white circle must have equal length, while the straight line segments coming out of a black circle must have different lengths. A number in a circle represents the sum of the lengths of these two line segments.     Disorderly Loop (Bottom left):      Clued cells may not be used by the loop. Clues represent the lengths of the next N line segments appearing in t...

       Shade some cells so that all shaded cells form one orthogonally connected area. Regions with numbers must contain the indicated amount of shaded cells. There may not exist a run of more than three consecutive shaded or unshaded cells horizontally or vertically anywhere in the grid. Solve online

       Place a number from 1 to N into each cell so that each row and column contains every number from that range with no repeats, where N is the side length of the grid. A clue represents the value obtained by applying an operation iteratively on the numbers in the region the clue is in. If no operation is given, it may be any of +, -, ×, or ÷. Subtraction and division in regions with more than two numbers are handled by taking the largest number and subtracting/dividing all the others. Solve online

       Shade some dominoes of cells, dividing the grid into regions. Shaded dominoes may not touch orthogonally. 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. Solve online Solve online Solve online

       Divide the grid into square regions of orthogonally connected cells. Borders must separate two different squares. A number on a border indicates the sum of the side lengths of the squares it separates. Region borders may not form any four-way intersections. Solve online

    Here are two more puzzles of this new genre that I've combined into one post because the first is stupid and the second is small. Neither of the "1" clues are necessary in the first puzzle, but I've included them for aesthetic purposes.        Divide the grid into square regions of orthogonally connected cells. A number indicates the side length of the square it’s in. Region borders may not form any four-way intersections. Solve online Solve online

       Divide the grid into square regions of orthogonally connected cells. A number indicates the side length of the square it’s in. Region borders may not form any four-way intersections. Solve online

     I've created another puzzle genre that I'm excited to share. Here it is: Square Jam!      Divide the grid into square regions of orthogonally connected cells. A number indicates the side length of the square it’s in. Region borders may not form any four-way intersections. Solve online

       Shade some cells to form a non-intersecting path which does not touch itself orthogonally. Circles mark the ends of the path.  Clues cannot be shaded, and represent the number of shaded cells connected in a straight line horizontally or vertically to the clue.  Exactly one orthogonally connected area of unshaded cells must exist of each size from the range given outside the grid. Solve online