Current position
Zukertort Opening: Tennison Gambit
1.e4 d5
The Scandinavian Defense starts with 1.e4 d5 and is catalogued under ECO B01, in the semi-open games half of the book. The catalog indexes 45 lines inside it, grouped into 42 named variations, and the position after those moves has 1 playable continuation to walk from here.
Root edges show how often each move is played around your Elo. Use the arrow on a position to reveal the next replies.
Current setup
Move ideas
Claims the center with a pawn and opens lines for the queen and king’s bishop.
Idea: Build quick development and make early castling possible.
Advances to d5 to claim central space and control nearby key squares.
Idea: Give the pieces room to develop behind a durable central foothold.
Develops the knight to f3, bringing it into the game.
Idea: Improve piece coordination and clear the back rank for castling and the rooks.
Captures the pawn on e4 and changes the local pawn or piece balance.
Idea: Open lines in the center and reshape the center for the next phase.
Repositions the knight to g5, where it influences a new part of the board.
Idea: Improve the piece’s activity and support the next stage of the plan.
Waiting for Lichess game popularity.
Each line below is an indexed entry under Scandinavian Defense. Open one to load it on the board and keep exploring from that position.
18 more named lines sit inside this family — the tree above walks all of them.
ECO groups openings by the structures they lead to, so these families tend to share plans with the Scandinavian Defense.