About RiverNova
RiverNova is a challenging shisen-sho game (also known as Four Rivers) for your phone or tablet. It offers three different levels of difficulty and several different mahjong-style tile sets for hours of solitaire fun!
Start off with the easy board of 36 tiles showing colorful, geometric patterns and play against stunning images from the Hubble Space Telescope. Keep winning to earn classic mahjong tiles and the popular medium-sized board. Or grab the in-app upgrade to play the full board of 144 tiles and use our unique Elvish or playful Emoji tile sets!
RiverNova uses mahjong tiles but requires the connection between two tiles to have no more than three connected lines. This novel rule makes a great twist on matching solitaire games. You'll be hooked in no time!