Hnefatafl - tactics and strategy

the magic quadrat

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The “Magic Quadrat” is simply the square formed by these third ranks.

The Magic Quadrat is like no-man’s land, a neutral zone between the territories controlled by black and white. It does not remain unoccupied for long.

Also, if you remember the barricades we saw earlier, you will see how useful it can be for either player to occupy those squares which are at the extreme ends of these third ranks, right at the edge of the board and two squares away from the corner squares.