Eric Fox's Puzzles

       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

     Connect some pairs of orthogonally adjacent dots to form a single non-intersecting loop. Each letter represents a different constant integer. Clues represent the number of edges drawn surrounding the clue (up to four). 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. Each letter represents a different constant positive integer. 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