Interesting new concept – No Cross Four : Prevent 4 circles forming a line Review

The game has a similar feel to Sudoku while being a different concept. It quickly becomes challenging without ever being difficult to understand, since there are only two simple rules. Make sure all the black circles are connected to each other through the rings you placed down, and never have more than three rings in a row.
Review by Cableshaft on No Cross Four : Prevent 4 circles forming a line.