Shogi is a version of Chess, or Chess is a version of Shogi. They both come from the same game invented many centuries ago. Shogi is different from Chess in several ways, but the biggest is that pieces that are captured are used by the player who captured them. So "end game" is very different from Chess.
Shogi also has a 9 x 9 playing board instead of an 8 x 8 board like Chess. The pieces in Shogi are King, Knight, Pawn, Bishop, Rook, Gold General, Silver General and Lance.
One challenge for new players of Shogi, is that traditionally the pieces have Kanji on them. This software uses either kanji OR pictures which make more sense to English speakers. I have also made some levels of the game play easier for players, so that even young children can find a level they can win against.
Shogi: Samurai Chess works well as a tutorial for new players of Shogi.