Chess Opening Scores: monthly opening reports tag:chessopeningscores.com,2026:reports 2026-10-14T00:00:00Z Chess Opening Scores Opening Report: What Moved on Lichess (Data to Sep 2026) tag:chessopeningscores.com,2026:report-2026-09 2026-10-14T00:00:00Z 2026-10-14T00:00:00Z 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).