CORR Database
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Available in: Builder, Library
The CORR Database provides high-quality opening insights based on thousands of correspondence games played by humans using engine assistance. Within the Repertoire Builder, this card allows you to explore deeply analyzed positions grounded in real human decision-making, blending strategic understanding with precise computer evaluation. It’s an invaluable resource for discovering reliable, well-tested continuations that balance human judgment and engine accuracy.
CORR Database Moves

For the current position, this section displays:
- ◦ The most common next moves played in top correspondence games, highlighted in green if they already exist in your opened item
- ◦ The number of games in which each move appeared across the correspondence database
- ◦ The percentage frequency of each move within the dataset
- ◦ The Win–Draw–Loss (WDL) percentages based on correspondence results
You can click on any move to add it directly to your opened item. This enables you to build your repertoire using proven continuations chosen by experienced correspondence players.
This feature helps you:
- + Discover accurate, engine-assisted moves selected by strong correspondence players
- + Add reliable correspondence continuations directly into your repertoire or library items
- + Use real-world, human-guided data to complement pure engine analysis and refine your preparation
CORR Games

For the current position, this section lists the top correspondence games that reached the same position. Each game represents deep human analysis supported by engine evaluation and extended thinking time.
You can:
- ◦ Click on a game to open and explore it in full
- ◦ Navigate move by move through carefully analyzed play
- ◦ Insert the full correspondence game into your opened item for further study
- ◦ Save the correspondence game to your Library for long-term reference
This feature helps you:
- + Explore how top correspondence players approach your current position
- + Add complete correspondence games to your repertoire or library for in-depth analysis
- + Learn from balanced, human–engine collaboration to strengthen your practical understanding