Zero Flash

Zero Flash is a numbers game: on a 4×4 grid, link neighboring digits, alternating plus and minus, to land right on zero, against the clock.

How to play
• Trace a path of neighboring cells, in all 8 directions, never going through the same cell twice.
• The first digit counts as plus, then you subtract and add in turn: 7 − 3 + 5 − 9 = 0.
• A path of at least 2 cells that lands on zero scores points, the more the longer it is.
• Start again from the last cell of a successful path to raise your multiplier.
• Bonus cells double the points of the path that crosses them.

Challenge other players
Take on other players in a duel on the same grid, each at their own pace.