Danish Gambit
Opening course for White · ECO C21
Activity for a pawn, with the critical defences included.
The Danish exchanges material for rapid development and open lines. This course teaches both 4.Nxc3 as the practical one-pawn repertoire and 4.Bc4 cxb2 5.Bxb2 as the full Danish, using compact theory variations rather than turning complete games into recall exercises.
- Chapters
- 4
- Lines
- 22
- Traps
- 6
- Sources
- 9
Nothing to review. Learn the next line.
Next: Main line against the pin, against 4...Bb4.
Part of your daily work.
- Learn
- Walk the line with the coach, a note on the moves that need one.
- Recall
- Play it from memory. Learned lines come back on a schedule.
- Tempo
- The same line against the clock, for a score to beat.
- Off book
- The opponent leaves the book with a real move; Stockfish prices your answers.
Before the moves: the big ideas
Choose the size of the gamble
4.Nxc3 keeps more material and develops immediately; 4.Bc4 allows the full two-pawn sacrifice and demands more exact knowledge.
Development is the compensation
The investment works only while White brings pieces into play with tempo. If Black completes development and exchanges the active pieces, the missing pawns become important.
Know the defensive systems
The Schlechter ...d5 return, Copenhagen ...Bb4+, Classical ...Nf6, Chigorin ...Qe7, Horowitz ...c6, and solid ...d6 each ask a different question.
Punish mistakes, not legal moves
The tactics chapter contains published opponent errors with concrete refutations. Sound defences remain in the theory chapters and are not advertised as traps.
The lines, chapter by chapter
In learning order. The coach serves review one line a day; open any line yourself when you want it now.
The Practical Danish: 4.Nxc3
4 lines
Keep one more pawn, develop with the recapture, and learn the opponent's first independent decision. These are theory branches, not chopped-up model games.
The Full Danish: Named Defences
7 lines
These are the compact theoretical cores worth recalling. Strategic continuations belong in explanations and annotated games, not as dozens of forced recall plies.
Published Punishments for Plausible Mistakes
5 lines
Every line here comes from a directly inspected human study. The opponent's error is labelled; the course does not manufacture a trap by asking an engine to continue.
When Black Declines
6 lines
Recover the pawn and learn the distinct system. Once the gambit is over, the lesson stops at the branch's opening handoff rather than replaying an unrelated middlegame.
Puzzles from this opening
The Danish Gambit in brief
The Danish Gambit is the chess opening that begins 1.e4 e5 2.d4 exd4 3.c3 dxc3, and it is filed under ECO C21. This course teaches it from White's side in 22 drills across 4 chapters, with a coach note on the moves that need one, every position checked with Stockfish at depth 20, and every plan credited to the author who wrote it down.
Lines you will drill
- Main line against the pin against 4...Bb4
- Independent Nge2 setup against 4...Nc6
- Simple development against ...d6 against 4...d6
- Hit the early knight against 4...Nf6?!
- Schlechter Defence against 5...d5 6...Nf6
- Classical Defence: the check against 5...Nf6 6.e5 Bb4+
- Classical Defence: central return against 5...Nf6 6.e5 d5
- Copenhagen Defence against 5...Bb4+
- Chigorin Defence against 5...Qe7
- Solid ...d6 setup against 5...d6
- Horowitz Defence against 5...c6
- Loose rook after ...Bc5? against 5...Bc5?
- The poisoned g-pawn against 5...Qg5? and 6...Qxg2??
- Break the pin with check against 5...d6 6.Nf3 Bg4??
- Punish the knight retreat against 5...Nc6 6.Nf3 Nf6 7.e5 Ne4??
- Copenhagen greed against 5...Bb4+ and 8...Nxe4??
- Capablanca's ...d5 system against 3...d5 4.exd5 Qxd5
- Premature bishop capture against 3...d5 and 7...Bxf3?
- The ...d3 closure against 3...d3
- The ...Qe7 counterattack against 3...Qe7
- Early ...Nf6 against 3...Nf6
- Svenonius Defence against 3...Ne7
Theory credited to
- Danish Gambit: A Guide for Aggressive PlayersGM Avetik Grigoryan
- Mastering the Chess Openings, Volume 4IM John Watson
- Danish Gambit: Complete Opening GuideGM Damian Lemos
- Danish Gambit Accepted: Games and AnalysisIan Simpson
- Danish Gambit Declined: Games and AnalysisIan Simpson
- Have Fun! (Schakel-Miettinen)IM Leonard Schakel and FM Alex Dunne
- Ultimate Guide — Danish GambitGreen_Frog96
- Danish Gambit (traps and defences study)SpaceXBest
- Danish Gambit Opening GuideChess.com
1 branch is deliberately not drilled here, and the course records which and why rather than leaving the gap silent.
Questions
- What is the Danish Gambit?
- The Danish Gambit is the chess opening that begins 1.e4 e5 2.d4 exd4 3.c3 dxc3, filed under ECO C21. Activity for a pawn, with the critical defences included. The Danish exchanges material for rapid development and open lines.
- How do you learn the Danish Gambit?
- This course splits it into 22 drills across 4 chapters. You play each line from White's side against a coach note that explains the move, then the same lines come back on a spaced-repetition schedule until you can play them without prompting. Every position is verified with Stockfish at depth 20 before it ships.
- Where does the theory in this Danish Gambit course come from?
- From published work by GM Avetik Grigoryan, IM John Watson, GM Damian Lemos, Ian Simpson and the reference sources credited on this page. The engine verifies the moves; the plans and assessments belong to the authors, and every drill records the page or section it came from.