Connect6 is a two-player board game similar to Gomoku or Renju. It is played on a Go-like board of various sizes (11x11, 15x15, 19x19). After the first player makes one move, the players make two moves in a row. The goal is to get six stones of your color in a row.
The app features solo, pass-and-play, and network multiplayer. It also has several puzzles.