Magnum Opus
SLITHERLINK puzzles are normally built on a rectangular grid (although other shapes are possible).
The grid is defined by an array of dots which represent the corners of the cells within the grid. Some of the cells in this grid contain a single digit number
between 0 and 3 inclusive. The remaining cells are blank.
To solve such a puzzle, the solver must join selected dots with horizontal and vertical lines so that a single loop is formed which does not cross over itself.
If a cell contains a number, then that number of sides of the cell must be included within the loop.
The puzzles have unique solutions, and no guessing is required to complete the solution.
Interactive SLITHERLINK puzzles normally have faint gray guide-lines joining the dots. These guide-lines can be converted to full
lines by pointing to an area near the middle of the line and clicking the mouse. A second click will remove the line altogether, and a third click will
restore the faint gray line.
Use logical reasoning to determine which of the guide-lines should be converted to full lines, and which ones should be removed.
Each time you add or remove a line, it will open up new possibilities for you to exploit.