Observed arrival · 2026-09-26
Caissa Codex’s Chess Openings Encyclopedia
A searchable chess-opening reference with interactive move boards, ECO codes, Lichess statistics, and browser-based practice.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Chess players studying named opening lines
- Worth noticing
- Opening statistics are described as Lichess games between players rated 1600 to 2500.
Field notes
Opening pages place each named line in an opening tree, alongside sub-variations and game results; the homepage says the results cover Lichess players rated 1600–2500. The reference draws names and move orders from the Lichess chess-openings dataset, grouping 3,690 lines across five ECO sections. Navigation also points to move and FEN identification, repertoire, memory drills, and browser play against Stockfish at six strengths.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue