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How to play
- A 5×5 board: five pieces each on the home rows and the neutron in the centre. White moves first.
- Pieces slide in any of eight directions as far as they can go, stopping only at a piece or the edge.
- A turn moves the neutron, then one of your own pieces. White's very first turn moves a piece only.
- Bring the neutron onto your home row to win. If your opponent is forced to move it there, you also win; a player who cannot move the neutron loses.
