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# MIT Mystery Hunt Puzzle Index: Keyword Data

## magnet logic puzzles

In the standard form of this puzzle, a grid is broken up into 2-cell regions, some of which are to be filled in with a + in one cell and a - in the other, so that the total number of +s and the total number of -s in each row and column equal the numbers given outside the grid, and two of the same symbol are never in orthogonally adjacent cells.

**Puzzles**

MIT Mystery Hunt 2008 Monopoles

**Categories**

Nikoli-style logic

Puzzle Types

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