Efim Geller
Master2,198 games in the Chessyi library, load any game on the analysis board with Stockfish, heatmaps, and full move navigation.
Study Efim Geller's games from the Chessyi master library. Browse 2,198 annotated games with Stockfish analysis, heatmaps, and full move navigation on the same board.

How to study Efim Geller
- ✓Load the Efim Geller collection from the 1.9M-game library
- ✓Step through critical positions with local Stockfish analysis
- ✓Overlay heatmaps to see how Geller controls squares and creates tension
What you can do on Chessyi
Open the game library, select the Efim Geller collection, and browse thousands of games. Step through moves, run Stockfish on critical positions, overlay heatmaps to see tactical tension, and compare structures to your own repertoire, all without leaving the browser.
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