Hostage Chess is an interesting variant of Chess. Captured pieces go into prison and you can exchange your captured pieces for your opponent's to put them back into the game. This version of Chess is more unpredictable and easier to win than normal chess. The computer program as many options for configuring it's strength. I suggest having the computer play itself for a few games so you can see what happens.
Hostage Chess takes all the usual rules of chess, and adds in the ability for captured pieces to return to the board. This simple change results in an exciting tactical game that can explode with dramatic reversals at a moment's notice.You can use any chess set and board, making a little extra temporary room on each side of the board for captured pieces. Play with a friend, or explore the game by yourself with a free Windows-based computer opponent.
Hostage Chess is every bit as deep as ordinary chess, and abounds with strategies and tactics that are waiting to be discovered. The best opening variations haven't been found. The best strategies aren't known. It's up to you to find them.
See Website for the rules and an example game:
http://www.hostagechess.com/index.html
Download (<1 MB):
http://www.hostagechess.com/download.html