AI Chess TeacherTrade pawns for open diagonals—and make the time useful.
1. e4 e5 2. d4 exd4 3. c3
Choose the Danish if you enjoy open diagonals and are comfortable evaluating initiative rather than counting pawns alone. It is also a useful defensive study topic. Black can decline with a central break or return material to finish development, so White should not expect the two-pawn attacking position in every game.
The bishop on c1 has an open route to b2. White can remove the advanced pawn and develop with the same move, which is the point of the second offer.
1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2
Position notation (FEN)
rnbqkbnr/pppp1ppp/8/8/2B1P3/8/Pp3PPP/RNBQK1NR w KQkq - 0 5
Three ideas to remember
Every pawn capture gives White a development opportunity
Black's pawn can travel from e5 to d4, c3 and b2 while White brings bishops to active diagonals. That creates a real time imbalance, but only if White uses the recaptures to develop. Spending the gained tempi on unrelated queen moves can erase much of the reason for the sacrifice.
The two bishops need open targets
Bc4 points toward f7, while Bb2 looks across the board toward g7 and h8. Their activity is valuable when the diagonals stay open and more pieces join. A pawn or piece placed on the diagonal may change the attack immediately. Trace the squares before assuming both bishops are attacking the king.
A central counterstrike can end the romance
Black's ...d5 challenges e4 and opens lines for development. This can be useful even if Black gives some material back. White must judge the resulting position rather than insisting that the opponent retain every extra pawn. Gambit compensation depends on the position after accurate defense, not on the most greedy branch.
Turn the structure into a plan
White's plan
White develops quickly, brings the knights into the centre and prepares king safety while looking for forcing threats on the bishops' diagonals. If the attack slows, reassess whether the remaining activity justifies the pawn deficit. The one-pawn Nxc3 route is a different choice from Bc4 and a second offer; decide deliberately how much material you are committing.
Black's plan
Black should neutralise the initiative through development and a timely central break. Accepting pawns is not a license to move the queen repeatedly or leave the king in the centre. Consider returning material when it gains a developing tempo or exchanges an active bishop. Once the attack is contained, the extra pawns become more relevant.
Common mistakes
Counting the extra pawns before counting active pieces
The accepted sequence below leaves White down two pawns but with two bishops already active. Black has spent several moves with one pawn. This does not force a win for White, but it explains why ordinary defensive development is more important than searching for another pawn.
1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2
Assuming every check helps the attacker
Black can check with ...Bb4+ and bring a piece out while forcing a response. White must choose a block or defensive move that preserves coordination. A gambit position still contains defensive obligations; ignoring a check because your bishops look strong is not an attacking plan.
Representative variations
These are introductory sequences from existing training lines, not a complete repertoire or a promise of a forced result.
Gambit Accepted
1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2
Gambit Accepted is the full two-pawn offer ending with Bxb2. Study the development balance and open diagonals before looking for a tactical finish.
Bishop Sacrifice
1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+ 6. Nc3 Nf6
Bishop Sacrifice includes ...Bb4+, Nc3 and ...Nf6. Black develops with a check, and White blocks while adding another piece to the central fight.
Bishop Pair Attack
1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+ 6. Nc3 Qe7
Bishop Pair Attack chooses ...Qe7 after the same check and knight development. The queen's position changes Black's defensive resources, so the continuation needs fresh calculation.
A practical exercise
White to move in the diagram above
Recapture on b2 with a developing move. Which two long diagonals should you inspect afterward?
1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2
Reveal the answer and explanation
5.Bxb2 removes the pawn and develops the c1-bishop. The bishops now look along c4–f7 and b2–g7–h8. Those lines can create threats, but Black can still develop and contest the centre. The exercise identifies White's compensation, not a forced mating attack.
Frequently asked questions
Must White sacrifice two pawns?
No. After ...dxc3, Nxc3 offers a one-pawn approach with active knight development. Bc4 invites the second capture and creates a different balance of activity and material.
Can Black decline the gambit?
Yes. A move such as ...d5 challenges the centre rather than collecting c3. White needs a response to that structure as well as the spectacular accepted line.
Understand it. Then practise it.
Replay the accepted line and name the development gain attached to each White move. Then examine the position after Black's bishop check and decide what White still needs for king safety. In your own games, review whether the attack used the gained time or merely hoped the diagonals would stay dangerous.
Practice this openingChoose a line in the catalogue. Existing free and Premium access rules apply.