Summing To Zero

How To Play:

Goal: Survive for as many turns as possible. Turns happen when you play a tile, link a tile or activate an ability with a clock symbol. You lose the game when your board is full or you reach negative points.

Playing Tiles: You can play a tile by clicking an empty space on the board. When you place a tile, the inverse of the tile will appear on another random empty space.

Linking Tiles: You can link tiles whose total sum is zero to remove them from the board and gain points. To start linking, click on a tile on the board. Click on other tiles on the board to add them to your link. You can only make horizontal and vertical links between tiles.

Points and Abilities: Spend points in order to activate abilities to get out of difficult situations. Most abilities don't cost a turn but those with a clock symbol do.

Tile transformation and Point Deduction: If a numbered tile stays on the board for too many turns, it will transform into a blocked tile the turn after the border around the tile is completely red. Upon transformation to a blocked tile, the player loses a point, and will continue to lose a point when the blocked tile's border turns completely red again. Blocked tiles cannot be linked or passed through when linking other tiles.

Ability List:

• Flip - Flips the sign of the current tile you're about to play
• Fuse - Combines the tiles adjacent to the targeted tile. Cannot use on a tile whose value will exceed 9 or be below -9 after fusion
• Reroll - Changes the value of your current and next tile
• Swap - Swaps the position of 2 tiles, blocked or not. Costs a turn
• Rewind - Turns back the tile transformation of numbered tile and point deduction of blocked tiles for a turn. Can turn blocked tiles back into numbered tiles
• Delete - Removes a tile from the board, blocked or not. Costs a turn
• Split - Splits the tile into 1 and -1 tiles adjacent to selected tile depending on the sign of the original tile. The total sum of the tiles do not change. Costs a turn
• Reset - Destroys all tiles on the board, blocked or not