How to Play Stones & Rivers

About Stones & Rivers, from BoardGameGeek:

Stones and Rivers is a thoughtful game of mindful placement. Each player has 14 pieces with two sides, a stone side for blocking and scoring and a river side for sweeping movement and scoring. Will you flip a piece over and reveal a river for you or your opponent to use? What piece could you push? Where is the best place to place your stone piece? Balance your pieces and be mindful to be the first to place 5 stones in your opponent's score area! -description from the designer