ChessBase Mega Database 2025 is the primary reference database for serious players, featuring over 11 million games and more than 113,000 annotated entries ChessBase Shop

National Championships: Deep dives into the strongest leagues in Europe and Asia.

These updates typically cover major international tournaments and top-tier events from late 2024 through early 2025.  Mega Database 2025 - ChessBase Shop

Automatic Method: Log in to your ChessBase Account, click "New Games", and select "Update Megabase 2025" to fetch them all at once.

The Chess Megabase 2025 updates 1-11 encompass a range of new additions and improvements. These updates are crucial for maintaining the database's relevance and utility. Here are some key aspects of these updates:

Performance Benchmarks

We tested the Updates 1-11 compilation on a standard setup (Intel i7-14700K, 32GB RAM, NVMe SSD):