Ushindi

From The Game Crafter's website: "Ushindi is a simple but addictive game for 2 players. To win you only have to make your opponent take the last gem. This game is not about chance, but all about being smart and knowing when you are ahead. Increase your bet when you are winning are just bluf. Because a single round only takes a few minutes, and every round is a new chance to win, Ushindi is exciting till the end. You can learn how to play in 5 seconds, but it may take forever before you know how to win!"