PERRY COMPUTER SERVICES

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How to play

Music and sounds. Open Menu, then Settings, to turn the sounds off or on, play music while you play — ours, or your own songs from this computer — and swap any of the game's sounds for one of your own.

Swap any two pebbles that sit side by side. If the swap lines up three or more of one colour, across or down, they crumble away. Everything above drops into the gap, new pebbles fall in from the top, and if those line up three by themselves they go as well — which is worth more every time it happens in a row.

A swap that lines nothing up is not allowed. The two pebbles trade places, trade straight back, and flash red.

Three ways to move a pebble

Drag it
Push it towards the one you want to trade with
Tap it, then tap its neighbour
Easier on a trackpad
Arrow keys
Move about the board, space to pick up, then an arrow to swap

If you get stuck

Press Hint and a swap that works lights up. Leave it a few seconds and one lights up by itself. If a board ever runs out of moves altogether it shuffles itself, and that costs you nothing.

Three ways to play

Open Menu and press New game to choose. Whatever you pick stays picked.

30 moves is the one you start on: thirty swaps to beat the target, for one, two or three stars. Only swaps that work count against them, so a swap that lines nothing up costs you nothing.

10 minutes has no move limit and cannot be lost — see how much you can score before the clock runs out. Tick No timer and it becomes Endless: play as long as you like.

Ladder is a climb, one level after another. Each level chooses its own colours and target, and pays coins for its stars.

How many colours

Arcade has four colours, so lines fall into place by themselves and there is always something going off. Classic has five. Strategy has six, and even a line of five is something to be proud of. Each keeps its own best scores.

Every board is numbered. Open Menu, then Settings, and type a number into Board number to play that exact board again, or hand the number to somebody else and they will get the same one.

Settings

Music Off unless you turn it on. Play ours or your own songs, and swap any of the game's sounds for one of your own.
Board number Every board has a number, and the same number deals the same board. Type one in to play a board again, or give the number to a friend and they get the same one.

My record

Kept on this computer, in this browser. Every other game keeps its own.

Out of moves