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| chess openings london system theory | 1.62 | 0.1 | 5807 | 35 | 12 |
| chess openings and explanations | 1.51 | 0.2 | 9891 | 31 | 15 |
| modern chess opening theory | 1.11 | 0.8 | 1047 | 27 | 9 |
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| understanding the chess openings | 1.85 | 0.7 | 8279 | 32 | 65 |
| chess theory for beginners | 0.1 | 0.9 | 7051 | 26 | 41 |
| understanding the chess openings pdf | 0.39 | 0.6 | 9752 | 36 | 26 |
