Tree path 5 levels Queen's Pawn Game › Blackmar-Diemer Gambit › Blackmar-Diemer Gambit › Blackmar-Diemer Gambit Accepted › Ritter Defense
- Chess Codex
- Queen's Pawn Game D00
- Blackmar-Diemer Gambit D00
- Blackmar-Diemer Gambit D00
- Blackmar-Diemer Gambit Accepted D00
- Ritter Defense D00 you are here
Blackmar-Diemer Gambit Accepted: Ritter Defense
Overview
Blackmar-Diemer Gambit Accepted: Ritter Defense belongs to the gambit family of chess openings (ECO D00, Closed & Semi-Closed Games). It trades material for attacking chances — a classic trade-off that has fascinated players from the Romantic era to modern correspondence chess.
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 is reached after 10 plies of play, with the move sequence 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 b6.
The line refines Blackmar-Diemer Gambit Accepted, which traces back to the root opening Queen's Pawn Game.
Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.
- ECO code
- D00
- Group
- Closed & Semi-Closed Games (D)
- Plies
- 10
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
10,335 games · White 54.3% / Draw 3.2% / Black 42.5%
| Moves | Games | W / D / B |
|---|---|---|
| Bc4 | 3,971 | |
| Bd3 | 3,647 | |
| Bg5 | 832 | |
| Be3 | 547 | |
| Bb5+ | 540 | |
| Bf4 | 234 | |
| Ne5 | 228 | |
| Be2 | 164 |
Source: Lichess Opening Explorer · cached 2026-09-26 02:19:59
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Submissions are reviewed before publishing.