Tree path 5 levels Queen's Pawn Game › Blackmar-Diemer Gambit › Blackmar-Diemer Gambit › Blackmar-Diemer Gambit Accepted › Gunderam Defense
- Caissa Codex
- Queen's Pawn Game D00
- Blackmar-Diemer Gambit D00
- Blackmar-Diemer Gambit D00
- Blackmar-Diemer Gambit Accepted D00
- Gunderam Defense D00 you are here
Blackmar-Diemer Gambit Accepted: Gunderam Defense
Overview
Blackmar-Diemer Gambit Accepted: Gunderam Defense is a gambit, classified under ECO code D00 within the Closed & Semi-Closed Games family. As with all gambits, one side sacrifices material early — usually a pawn — in exchange for development, open lines, or initiative.
The Closed & Semi-Closed Games group covers closed and semi-closed games — 1.d4 systems characterised by long strategic manoeuvring rather than early tactics.
It begins with 10 plies and takes 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 to reach the canonical position.
It is a variation of Blackmar-Diemer Gambit Accepted, which itself descends from the root opening Queen's Pawn Game.
It continues primarily into one named line, Stader Variation.
Step through the moves on the interactive board below, review the live Lichess statistics, or play this position against Stockfish at one of six difficulty levels.
- ECO code
- D00
- Group
- Closed & Semi-Closed Games (D)
- Plies
- 10
- Direct variations
- 1
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
103,277 games · White 45.7% / Draw 4.3% / Black 50.0%
| Moves | Games | W / D / B |
|---|---|---|
| Bc4 | 49,606 | |
| Ne5 | 14,621 | |
| Bd3 | 14,402 | |
| Bg5 | 6,192 | |
| Be3 | 5,707 | |
| h3 | 5,338 | |
| Bf4 | 2,772 | |
| Be2 | 1,591 |
Source: Lichess Opening Explorer · cached 2026-09-26 02:19:46
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