Fritz 11 Portable

The standard version includes over one million games (1625–2007), giving you a vast library for studying historical lines and grandmaster openings.

If you meant (often shortened to "Fritz"), the open-source hardware design tool: fritz 11 portable

At the heart of Fritz 11 Portable is a highly sophisticated chess engine, capable of analyzing games, suggesting improvements, and even playing against the user. The engine's strength and analysis capabilities are on par with the world's top chess programs, providing insights that can significantly enhance a player's understanding and performance. The standard version includes over one million games