Chess — Modern Defense B06 : opening moves and positions
Chess · ECO B06
An ECO code groups opening lines, not one forced position. Step through legal notation from the CC0 Lichess dataset. This is a study viewer, without engine evaluation or a claim that a line is best.
1. e4 g6
FEN: rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - 0 2
Source data · B06
45 PGN · 45 FEN · Opening line: 12
- Modern Defense:
1. e4 g6 - Modern Defense:
1. e4 g6 2. d4 Bg7 - Modern Defense: Fianchetto Gambit:
1. e4 g6 2. d4 f5 - Modern Defense: Norwegian Defense:
1. e4 g6 2. d4 Nf6 - Modern Defense: Bishop Attack:
1. e4 g6 2. d4 Bg7 3. Bc4 - Modern Defense: Standard Line:
1. e4 g6 2. d4 Bg7 3. Nc3 - Modern Defense: Three Pawns Attack:
1. e4 g6 2. d4 Bg7 3. f4 - Modern Defense: Westermann Gambit:
1. e4 g6 2. d4 Bg7 3. Bd2 - Modern Defense: Wind Gambit:
1. e4 g6 2. d4 Bg7 3. Bd3 - Modern Defense: Bishop Attack, Bücker Gambit:
1. e4 g6 2. d4 Bg7 3. Bc4 b5 - Modern Defense: Lizard Defense, Mittenberger Gambit:
1. e4 g6 2. d4 Bg7 3. Nc3 d5 - Modern Defense: Modern Pterodactyl:
1. e4 g6 2. d4 Bg7 3. Nc3 c5
Game and item names below retain the source’s English identifiers so you can find them in the linked documentation.
Related game questions
- Chess — Pirc Defense B07 : opening moves and positions
- Chess — Alekhine Defense B04 : opening moves and positions
- Chess — Pirc Defense B08 : opening moves and positions
- Chess — Alekhine Defense B03 : opening moves and positions
- Chess — Caro-Kann Defense B10 : opening moves and positions
- Chess — Scandinavian Defense B01 : opening moves and positions
- Chess — Caro-Kann Defense B11 : opening moves and positions
- Chess — Nimzowitsch Defense B00 : opening moves and positions
Using this reference
For Modern Defense, start at the first position and step through the moves rather than memorizing the final board. After each move, look for the piece that moved and the squares it now influences. The same opening name can cover several branches, so use the selected line’s move order as your reference.
The final position in the viewer is where this recorded line ends, not a verdict on the position. Choose another listed branch to see where the paths separate. The viewer displays legal source moves; it does not provide an engine evaluation or establish a forced continuation.
Sources and scope
Public source snapshot; changes after this version may differ. 2026-11-03
chess-a · CC0
chess-b · CC0
chess-c · CC0
chess-d · CC0
chess-e · CC0