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Chess Opening Reports: One Page a Month (Lichess Data)
One report for each processed month: which openings on this site were played more or less often, and where a side's score changed, at each Lichess rating level. Only changes outside the margin are listed; a quiet month says so. Each report keeps its numbers when later months arrive.
- September 2026: Was the Italian Game: Giuoco Piano played more at 1500–1799 (Lichess rating) in September 2026? Its share moved from 1.28% to 1.43% (observed; no cause claimed). Published 14 Oct 2026.