Shogi (将棋) is the Japanese version of an ancient Indian game that became Chess in Europe and xiangqi in China. In fact, Shogi is frequently referred to as Japanese chess in the English speaking world.
Shogi is played on a 9×9 board, unlike the 8×8 board of Western chess. Shogi has some pieces that are very similar to Western chess, a king, pawns, rook, bishop, and knight. Shogi also has pieces that are not found in Western chess such as gold generals, silver generals and the lance.
The most interesting difference between shogi and chess is that when opposing pieces are captured in shogi, they become loyal to the player that captured them. These captured pieces are then dropped back on the board to continue the game.
You can get a feel for the game of shogi by trying my free online shogi app (still very much beta). The online shogi app should work in any modern web browser on PC’s, Macs, tablets, and smart phones.