Amazing entertainment for hours If you like puzzles then this will suck you in for many hours
It's a great game to waste your time
Looks easy but gets progressively harder. Great time waster. Highly recommended
Lol It is hard but fun kinda challenger
Still can't get enough
Great puzzle game Been playing for a while and I love it
[v2.0.2] Minor fixes
Also on Google Play: 9 (FREE) and 10 Junior (FREE) -- a special edition for young mathematicians.