Solve that ! The game

It's a fun and original brain teaser game, a mix of crosswords and an little math game. 
You must solve each line with additions, multiplications, subtractions and divisions. It's super easy, you just need to move the orange tiles piece and place them on the free spots. If your equation is correct, the line will change to green. if it's incorrect if will change to red. If it is incorrect, move the pieces until all the board becomes green. This game has a lot of levels and you can choose between several difficulty modes, from novice to insane levels ! 

Show your friends what you got, and play one of the best brain teaser game ever. 

Only 1% of players can solve some of the levels in this game. Are you ready to raise the challenge and see if you are in the 1%' group or the 99%' group ?