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Walk any move order through the catalog: pick a book continuation and watch the board, or open the matching ECO lines on the side. Move orders, not transpositions — exactly the paths over the board. Prefer the family trees? Every opening page has one.
1. e4 e5 2. Nf3
◀ Undo move
♞ You have reached King's Knight Opening C40 — the catalogued line ends exactly here.
Matching openings 692
- Elephant Gambit C40 1 ply deeper
- Gunderam Defense C40 1 ply deeper
- King's Pawn Game: Busch-Gass Gambit C40 1 ply deeper
- King's Pawn Game: Damiano Defense C40 1 ply deeper
- King's Pawn Game: Gunderam Gambit C40 1 ply deeper
- King's Pawn Game: McConnell Defense C40 1 ply deeper
- Latvian Gambit C40 1 ply deeper
- Philidor Defense C41 1 ply deeper
- Petrov's Defense C42 1 ply deeper
- King's Knight Opening: Normal Variation C44 1 ply deeper
- Latvian Gambit Accepted C40 2 plies deeper
- Latvian Gambit: Diepstraten Countergambit C40 2 plies deeper
…and 680 more lines run through this position — keep making moves to narrow it down.
3810 catalogued lines in total · openings encyclopedia