Blackmar-Diemer Gambit

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Overview

Blackmar-Diemer Gambit 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.

The line arises from 3 plies — specifically the moves 1. d4 d5 2. e4.

The line is a first-level refinement of Queen's Pawn Game.

The line has 8 documented children — Blackmar-Diemer Gambit, Blackmar Gambit, Diemer-Rosenberg Attack, and others being widely played.

Counted recursively, this branch covers 46 sub-variations at all depths.

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ECO code: D00
Group: Closed & Semi-Closed Games (D)
Plies: 3
Parent: Queen's Pawn Game
Direct variations: 8
Total in subtree: 46

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

8,943,496 games · White 51.5% / Draw 3.9% / Black 44.7%

Moves	Games	W / D / B
dxe4	6,364,768
e6	880,003
c6	734,179
Nf6	402,636
Nc6	247,310
c5	141,977
e5	91,230
Bf5	21,266

Source: Lichess Opening Explorer · cached 2026-09-26 00:54:57

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Variations (8)

Show all 46 sub-variations (full subtree)

Overview

Statistics from Lichess

Variations (8)

Related variations at the same level