Eric Fox's Puzzles

       Place each shape from the bank given outside the grid into the grid so that no two shapes share an edge and all unused cells form one orthogonally connected area. Rotating and reflecting shapes is allowed.  Clued cells cannot be used by shapes, and a clue means that the first tetromino seen in a straight line in the indicated direction is of the shape associated with that letter. Solve online

       Shade some cells to form a non-intersecting path which does not touch itself orthogonally. Circles mark the ends of the path. Exactly one orthogonally connected area of unshaded cells must exist of each size from the range given outside the grid. Cells with numbers cannot be shaded, and represent the size of the area they’re in. 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

       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. 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

       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

       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

       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.  Clues outside the grid represent the lengths of the blocks of consecutive shaded cells in the corresponding row or column, in order. A question mark represents one block of an unknown number of cells. An asterisk represents any number of blocks of shaded cells, including none at all. Solve online

       Shade some cells to form a non-intersecting path which does not touch itself orthogonally. Circles mark the ends of the path. Each orthogonally connected area of unshaded cells must be exactly five cells in size. Clues cannot be shaded, and contain the letter associated with the pentomino shape of their unshaded area. Solve online

       Shade some cells so that each orthogonally connected area of shaded cells is in the shape of a rectangle. The shaded rectangles must all form a single loop through diagonal connections, with no branches. All cells with circles must be shaded, and if a circle contains a number, its shaded rectangle must contain the indicated number of cells. Solve online

       Divide the grid into regions of five orthogonally connected cells so that no regions of the same shape share an edge, counting rotations and reflections as the same. Clued cells must belong to a region with the pentomino shape associated with that letter. Borders must separate two different regions. Solve online Solve online Solve online Solve online Solve online

       Shade some cells so that each orthogonally connected area of shaded cells is in the shape of a square. Clues represent how many of the five cells forming a cross around the clue (including itself) are shaded. Two shaded squares of the same size may not have a vertical or horizontal line of unshaded cells between them, unobstructed. Solve online

       Draw a non-intersecting loop through the centers of some cells that passes through every circle. Each circle marks the center of the straight line segment it lies on. No two consecutive straight line segments may be the same length. Solve online

       Draw a non-intersecting loop through the centers of all empty cells. No straight line segment may be more than two cells in length. 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. No 2x2 area may be entirely unshaded. Solve online

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

       Divide the grid into regions of five orthogonally connected cells so that no two regions of the same shape share an edge, counting rotations and reflections as the same. Clued cells must belong to a region with the pentomino shape associated with that letter. Solve online

       Place a number into some cells so that all cells with numbers form one orthogonally connected area. Each region must contain at least one numbered cell, and every number in the region must be equal to how many numbered cells the region contains. Two cells containing the same number may not share a region border. No 2x2 region may be entirely numbered. Solve online

       Place each shape from the bank given outside the grid into the grid so that no two shapes share an edge and all unused cells form one orthogonally connected area. Rotating and reflecting shapes is allowed. Cells with black circles must be used by a shape, and cells with white circles must not be used by a shape. Solve online

      Here are three relatively simple 9x10 Masyu puzzles with symmetrical layouts. The third is a bit trickier than the other two.      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 Solve online

       Shade some cells to form a non-intersecting path which does not touch itself orthogonally. Circles mark the ends of the path. Each orthogonally connected area of unshaded cells must be exactly five cells in size. Clues cannot be shaded, and contain the letter associated with the pentomino shape of their unshaded area. Solve online

       Draw a non-intersecting path through the centers of some cells which passes through every white circle and no black circles. Grey circles mark the ends of the path. Between each pair of circles the path uses, the path must turn exactly twice, and both turns must be in the same direction. Solve online

       Draw a non-intersecting path through the centers of some cells which passes through every white circle and no black circles. Grey circles mark the ends of the path. Between each pair of circles the path uses, the path must turn exactly twice, and both turns must be in the same direction. Solve online

       Shade some cells so that each orthogonally connected area of shaded cells is in the shape of a square. Clues represent how many of the five cells forming a cross around the clue (including itself) are shaded. Two shaded squares of the same size may not have a vertical or horizontal line of unshaded cells between them, unobstructed. Solve online

       This is a Nurikabe puzzle that works and has a different solve path no matter how many layers you chop off the edges.      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 Solve online Solve online Solve online

       Shade some cells so that no two shaded cells are orthogonally adjacent and the remaining unshaded cells form one orthogonally connected area. If a cell with a number in it is unshaded, the number represents how many shaded cells are in a straight line in the indicated direction. If a cell with a number in it is shaded, the number is meaningless. Solve online

       Shade one tetromino of cells in each region so that all shaded cells form one orthogonally connected area. No 2x2 region may be entirely shaded. Two tetrominoes of the same shape may not share a bold border, counting rotations and reflections as the same. Clues outside the grid represent the lengths of the blocks of consecutive shaded cells in the corresponding row or column, in order. A question mark represents one block of an unknown number of cells. An asterisk represents any number of blocks of shaded cells, including none at all. Solve online

       Draw a non-intersecting loop through the centers of some cells which visits each shaded region at least once and passes through every circle. 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).  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. Cells touching a circle must be unshaded. Every orthogonally connected area of unshaded cells must contain exactly one circle,  and have 180° rotational symmetry around it.  No 2x2 region may be entirely shaded. 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 no two shaded dominoes 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

       Shade some cells to form a non-intersecting loop which does not touch itself, not even diagonally. Clues cannot be shaded, and represent the number of shaded cells in the (up to) eight cells surrounding the clue. Solve online

       Divide the grid into regions of orthogonally connected cells, each containing exactly one compass. A number in a compass indicates how many cells belong to its region that are further in the indicated direction than the compass itself. Solve online

       Shade some cells so that all shaded cells form one orthogonally connected area. No 2x2 region may be entirely shaded. Clues outside the grid represent the lengths of the blocks of consecutive shaded cells in the corresponding row or column, in order. A question mark represents one block of an unknown number of cells. An asterisk represents any number of blocks of shaded cells, including none at all. Solve online Solve online Solve online Solve online Solve online

       Connect some pairs of orthogonally adjacent dots to form paths connecting pairs of circles. Each path must turn exactly once, and each path must be crossed exactly once by another path. Two perpendicular line segments may intersect each other, but not turn or stop at their intersection or otherwise overlap. Two circles containing the same letter must be ends of the same path. Two circles containing different letters may not. Solve online