Magnets

from Simon Tatham's Portable Puzzle Collection


Sorry, this Javascript puzzle doesn't seem to work in your web browser. Perhaps you have Javascript disabled, or perhaps your browser doesn't provide a feature that the puzzle code requires (such as typed arrays). These puzzles have been successfully run in Firefox 19, Chrome 26, Internet Explorer 10 and Safari 6.

Fill each domino shape with either a magnet (consisting of a + and − pole) or a neutral domino (green).

The number of + poles that in each row and column must match the numbers along the top and left; the number of − poles must match the numbers along the bottom and right. Two + poles may not be orthogonally adjacent to each other, and similarly two − poles.

Left-click a domino to toggle it between being empty and being a magnet (the + is placed in the end you click). Right-click to toggle between empty, neutral, and a ?? mark indicating that you're sure it's a magnet but don't yet know which way round it goes.

Left-click a clue to mark it as done (grey it out). To unmark a clue as done, left-click it again.

Full instructions | Back to main puzzles page


(comments to anakin@pobox.com)
(thanks to chiark for hosting this page)
(last modified on Wed Mar 15 01:42:14 2017)