^Tap to light all the lights^
Tap the light in a grid.
Then all the lights in cross area (+ shaped area) will turn on/off. (From ON to OFF, or from OFF to ON).
Try to light up all the lights in fewer taps!
^Tap to light all the lights^
Tap the light in a grid.
Then all the lights in cross area (+ shaped area) will turn on/off. (From ON to OFF, or from OFF to ON).
Try to light up all the lights in fewer taps!