Fritz Chess
The game is based upon the Fritz chess program and allows the user to establish and maintain an ELO score within the game when playing classic chess against a computer opponent. The North American release of Fritz Chess was quite limited and has fueled speculation that it may be the rarest Wii release in the region. Copies on Amazon and other retailers can run above $100. It was later revealed that Fritz Chess had a limited run on all console releases including the PlayStation 3 and Nintendo DS due to Deep Silver specifically developing the console version for those who wanted to learn to play chess competitively. The Fritz Chess series has another DS release "Learn to Play with Fritz and Chesster" which has assumed similar rarity.
Perceived rarity
Fritz Chess is a video game for the Wii, Nintendo DS, and PlayStation 3 developed by Freedom Factory Studios and published by Deep Silver.