Eric Fox's Puzzles

       Divide the grid into regions of four orthogonally connected cells. Clued cells must have the indicated number of region borders or grid borders surrounding them. Two regions which share an edge may not be the same shape, counting rotations and reflections as the same. Solve online

       Shade some cells so that no two shaded cells are orthogonally adjacent and the remaining unshaded cells form one orthogonally connected area. Numbered regions must contain the indicated amount of shaded cells. A line of consecutive unshaded cells may not cross more than one bold border. Solve online

       Shade some cells so that the remaining unshaded cells form one orthogonally connected area. No 2x2 region may be entirely shaded or unshaded. Circles mark every instance of a cell which is unshaded and orthogonally adjacent to exactly one other unshaded cell. If a circle contains a number, it indicates how many cells are in the straight line of unshaded cells coming out of the cell with the circle, including itself. Solve online

       Shade some cells so that all areas of orthogonally connected unshaded cells are rectangular and all areas of orthogonally connected shaded cells are not rectangular. The unshaded rectangles must all be connected diagonally. Clues cannot be shaded, and represent the number of cells in the unshaded area they belong to. An unshaded area of cells cannot contain more than one clue. No 2x2 region may be entirely shaded. Solve online

     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. There may not exist a run of more than three consecutive shaded or unshaded cells horizontally or vertically anywhere in the grid.      To be clear, the rule from Tapa which states that a 2x2 area cannot be entirely shaded does not apply. Solve online

    Here are three unrelated Nurikabe puzzles. I was especially happy that I got the consecutive-pairs theme to work out for the last one without sacrificing the logic I'd intended. Enjoy!        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 Solve online

       Shade some cells so that no two shaded cells are orthogonally adjacent and draw a non-intersecting loop through the centers of all the remaining empty cells. Clues cannot be shaded, and represent the number of shaded cells in a straight line in the indicated direction. Solve online

       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. Identical clues must have identical arrangements of shaded cells around them. No 2x2 region may be entirely shaded.     It's not totally obvious, but the clues in this puzzle have a form of vertical anti-symmetry. This is just a little aesthetic feature I thought I'd point out! Solve online

       Draw a non-intersecting loop through the centers of all cells. When the loop exits a clued region in any direction, it must travel in a straight line for exactly the indicated number of cells (turning on the Nth cell, where N is the value of the clue).      In this puzzle, a question mark can represent any positive integer. Solve online

       Shade some cells so that each orthogonally connected area of shaded cells is in the shape of a one-wide rectangle. Rectangles of the same length may not touch diagonally. 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

       Shade some cells so that no two shaded cells are orthogonally adjacent and the remaining unshaded cells form one orthogonally connected area. No two cells in the same row or column containing the same number may both be unshaded. Solve online

       Divide the grid into rectangular regions of orthogonally connected cells.  Each letter represents a different constant positive integer.  Each region must contain exactly one clue, the value of which represents the number of cells in the region. Solve online

       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

       Connect some pairs of orthogonally adjacent dots to form a single non-intersecting loop. Clues represent the number of edges drawn surrounding the clue (up to four).     Solve online

       Shade some cells so that all areas of orthogonally connected unshaded cells are rectangular and all areas of orthogonally connected shaded cells are not rectangular. The unshaded rectangles must all form a single loop through diagonal connections, with no branches. Clues cannot be shaded, and represent the number of cells in the unshaded area they belong to. An unshaded area of cells cannot contain more than one clue. No 2x2 region may be entirely shaded.      In this puzzle, a question mark can represent any positive integer. Solve online

       Draw rectangular loops through the centers of empty cells so that every empty cell gets used. The sides of different rectangles may intersect each other, but not turn at their intersection or otherwise overlap. 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

       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

       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

       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

       Draw a loop through the centers of all cells. Two perpendicular line segments may intersect each other, but not turn at their intersection or otherwise overlap. A clue shows how the loop crosses through the cell it’s in. Solve online

       Draw a non-intersecting loop through the centers of some empty cells. Clues represent the numbers of consecutive cells occupied by the loop each time it enters the (up to) eight cells surrounding the clue. Solve online

       Draw rectangular loops through the centers of empty cells so that every empty cell gets used. The sides of different rectangles may intersect each other, but not turn at their intersection or otherwise overlap. Solve online

       Connect some pairs of orthogonally adjacent dots to form a single non-intersecting loop. Clues represent the number of edges drawn surrounding the clue (up to four). Solve online Solve online Solve online

       Draw a non-intersecting loop through the centers of some cells which passes through each region exactly once. Within a region, the loop must pass through all moons and no suns, or all suns and no moons. A region containing only suns or only moons must have its clues passed through. The loop may not pass through the same type of clue in two consecutively used regions. Solve online

      This is one of five Double Choco puzzles that I'll be posting in quick succession. Enjoy!     Divide the grid into regions of orthogonally connected cells, each containing a connected group of white cells and a connected group of grey cells, with the property that the shape of the white cells is identical to the shape of the grey cells, allowing rotations and reflections. Clued cells must belong to a region containing the indicated number of white cells and the indicated number of grey cells. Solve online

       This is one of five Double Choco puzzles that I'll be posting in quick succession. Enjoy!     Divide the grid into regions of orthogonally connected cells, each containing a connected group of white cells and a connected group of grey cells, with the property that the shape of the white cells is identical to the shape of the grey cells, allowing rotations and reflections. Clued cells must belong to a region containing the indicated number of white cells and the indicated number of grey cells. Solve online

       This is one of five Double Choco puzzles that I'll be posting in quick succession. Enjoy!     Divide the grid into regions of orthogonally connected cells, each containing a connected group of white cells and a connected group of grey cells, with the property that the shape of the white cells is identical to the shape of the grey cells, allowing rotations and reflections. Clued cells must belong to a region containing the indicated number of white cells and the indicated number of grey cells. Solve online

     This is one of five Double Choco puzzles that I'll be posting in quick succession. Enjoy!     Divide the grid into regions of orthogonally connected cells, each containing a connected group of white cells and a connected group of grey cells, with the property that the shape of the white cells is identical to the shape of the grey cells, allowing rotations and reflections. Clued cells must belong to a region containing the indicated number of white cells and the indicated number of grey cells. Solve online

     This is one of five Double Choco puzzles that I'll be posting in quick succession. Enjoy!      Divide the grid into regions of orthogonally connected cells, each containing a connected group of white cells and a connected group of grey cells, with the property that the shape of the white cells is identical to the shape of the grey cells, allowing rotations and reflections. Clued cells must belong to a region containing the indicated number of white cells and the indicated number of grey cells. Solve online