How to play
Each player has a laser, a king and a set of mirrored pieces. Destroy the other king
with your laser beam, or by capturing it, and you win. Red sits at the bottom and moves first.
Your turn
- You get two moves each turn. The boxes left of the board count what is left.
- Click a piece to select it. Click it again to let go, which costs nothing.
- Click an empty square up to two steps away, in a straight line, to move there.
No diagonal steps: go forward then sideways instead. Each square costs one move.
- Rotate a selected piece a quarter turn with the right mouse button.
On a touch screen, use the Rotate piece button. Each turn of the piece costs one move.
- Fire by pressing the orange button under the side panel. Keep holding it to watch where the beam goes.
Firing costs one move, and you can fire only once a turn.
- To skip the rest of your turn, click inside the moves box.
The pieces
- King
- Lose it and you lose the game. It has no mirrors, so a beam from any side destroys it.
It can capture an enemy piece by moving onto it, once a turn.
- Laser
- Your only gun. You can turn it to aim. It has no mirrors either, so guard it.
- Block
- Captures like the king. Its one mirrored face sends a beam straight back where it came from.
- Diagonal mirror
- Turns a beam through 90°. A beam can't destroy it, but a king or block can capture it.
- Triangular mirror
- Turns a beam through 90°. Its two plain sides are armoured too.
- Straight mirrors
- Reflect a beam straight back off the flat face. A beam that meets one edge-on goes straight past.
- Beam splitter
- A beam on its point splits in two, at right angles. A beam on a mirrored side turns 90°.
A beam on its base destroys it.
- Hypercube
- A beam passes straight through it. Move it onto any piece, yours or theirs, and that piece
jumps to a random empty square.
The square in the middle of the board is a hypersquare. It soaks up beams, and a piece moved onto it
lands on a random empty square.
A beam destroys any piece it hits on a plain side, including your own pieces and your own laser.
The side panel
R restarts the game and D turns the board 90°. Q, which quit to the desktop on the ST, does nothing here.
Online
Each browser runs its own copy of the ST, and the two copies stay in step. The player to move
drives the mouse on both screens, and the other player watches their pointer.
If you reload or lose the connection, open the same link again and the game catches up.