File:Chess firstMove.png

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chess first (half-)move popularity

DescriptionChess firstMove.png	English: This was made for the Chess Opening Theory wikibook and corresponds to the data there. These numbers are the average of 5 different chess game databases, which are the following: 365Chess.com's 'big' Chess Tempo's 'all' chessgames.com, Lichess's 'masters' Lichess's 'database' 365Chess.com and Chess Tempo seem to have many older games that are lacking from Lichess (masters) and chessgames.com. Lichess's (unnamed non-masters) database has data from club-level players which apparently can behave quite differently from masters. These are percentages (that is, probability times 100.
Date	16 November 2022
Source	Own work
Author	Ish ishwar

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:07, 16 November 2022		912 × 632 (54 KB)	Ish ishwar (talk \| contribs)	bigger font size
	16:24, 16 November 2022		910 × 636 (41 KB)	Ish ishwar (talk \| contribs)	Uploaded own work with UploadWizard

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