Light up is
Clear all the squares to light up!
It is crispy playing and deep "brain training puzzle".
【Rule】
1. When placing a light, all the cells in the up and down direction and the left and right direction are lit up.
2. You can not place a light in the place that is lit up with.
3. The light of the light can not shine ahead of the trouble of the black obstacle.
4. The numbers of the black squares indicate the number of lights in the four squares at the top and bottom, left and right.
Light up all the squares and clear the game!!!!!