It's 0h h1's companion game! Remember that little logic game called 0h h1? Well, we've made a challenging new puzzle game to go along with it! Meet its companion... 0h n0. 0h n0 is a lovely little logic game that follows its own three rules: - Blue dots can see others in their own row and column. - Their numbers tell how many. - Red dots block their view. Simply tap a tile to make it blue or red and complete the grid. 0h n0 gives you unlimited puzzles for all four grid sizes: 5 x 5 6 x 6 7 x 7 8 x 8 0h n0 is free, without ads, without social network requirements, without locked features and without nag screens. 0h n0 is a little gift to you. We hope you enjoy it. 0h n0 can also be played on 0hn0.com.