Bishop's Opening
Initial Moves: 1.e4 e5 2.Bc4
Strategic Summary & Main Idea
The Bishop's Opening brings the bishop to c4 on move two and postpones the decision about the g1 knight and the f-pawn. It is an opening of transpositions: depending on Black's reply, the game can become a Vienna, an Italian or an open game of its own, and White chooses the moment. After 2.Bc4, the position measures −0.03. Against 2...Nf6, the most played reply, the moves that hold equality are 3.Nc3 (−0.04) and 3.d3 (−0.08); 3.Nf3?! gives up the e4 pawn and measures −0.49, and 3.f4? measures −1.13. The modern main line, with 3.d3 c6 4.Nf3 d5 5.Bb3 a5, stands at +0.04.
The pawn structure this opening produces
The Bishop's Opening does not fix the structure early, and that is its point. With the bishop on c4, White can still play f4, as in the King's Gambit, d4, as in the Urusov Gambit, or d3, the most common path today. With 3.d3, the e4 pawn is protected by a pawn and the game closes into a centre like the slow Italian: White with e4 and d3, Black with e5 and, often, ...c6 and ...d5. That Black advance gains space with tempo on the bishop, which must retreat to b3; there it still eyes f7, but it can be trapped by ...a5 and ...a4, which is why a4 is a typical White move. With 3.d4, the structure opens: the d4 pawn is traded and the game becomes a development race a pawn down. The choice between the two structures is White's, and the most common mistake is making the wrong one on move three and leaving e4 undefended.
Typical Plans for White
- Against 2...Nf6, defend e4 with 3.d3 or 3.Nc3 before developing the g1 knight
- Against 3...c6 and 4...d5, retreat 5.Bb3 and answer 5...a5 with a4
- Go for the Urusov Gambit with 3.d4 exd4 4.Nf3 for open play: −0.20 a pawn down
- Transpose to the Vienna with 3.Nc3 when the opponent does not know the line
- Do not play 3.Nf3 against 2...Nf6: 3...Nxe4 wins the pawn and measures −0.47
Typical Plans for Black
- Answer 2...Nf6 and hit e4 before White defends it
- Against 3.d3, set up ...c6 and ...d5 and take the centre with tempo on the bishop
- Against 5.Bb3, play 5...a5 and threaten to trap the bishop with ...a4
- Do not capture 5...dxe4 against 5.Bb3: 6.Ng5 hits f7 and measures +1.04
- Against 3.f4, open the centre with 3...d5: −0.94
Main Variations of the Bishop's Opening
| Variation | Move Sequence | Evaluation | Style / Characteristic |
|---|---|---|---|
| 3.d3 c6 4.Nf3 d5 5.Bb3 a5 | 1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Nf3 d5 5.Bb3 a5 6.a4 Bb4+ 7.c3 Bd6 |
+0.04 | The modern main line: Black takes the centre and White fixes the queenside |
| 3.d3 Bc5 4.Nf3 d6 5.c3 | 1.e4 e5 2.Bc4 Nf6 3.d3 Bc5 4.Nf3 d6 5.c3 O-O 6.O-O |
+0.11 | A Giuoco Pianissimo with Black's knight still on b8 |
| Urusov Gambit (4...Nxe4) | 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 Nxe4 5.Qxd4 Nf6 6.Bg5 Be7 7.Nc3 |
−0.14 | White plays a pawn down, with development and a centralised queen |
| Urusov Gambit (4...d5) | 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 d5 5.exd5 Bb4+ 6.c3 Qe7+ |
+0.16 | Black returns the pawn and opens the e-file with check |
| 3.Nc3 Bb4 | 1.e4 e5 2.Bc4 Nf6 3.Nc3 Bb4 |
+0.09 | The transposition to the Vienna, with Black's bishop against the c3 knight |
| 2...Bc5 3.Qg4 Qf6 | 1.e4 e5 2.Bc4 Bc5 3.Qg4 Qf6 |
+0.02 | White's queen hits g7, and Black's defends the pawn and aims at f2 |
| 2...Nc6 3.Qh5 g6 4.Qf3 | 1.e4 e5 2.Bc4 Nc6 3.Qh5 g6 4.Qf3 Nf6 5.Ne2 Bg7 |
−0.29 | The queen attack on f7 that does not work against the right defence |
| 3.d3 d5 4.exd5 Nxd5 | 1.e4 e5 2.Bc4 Nf6 3.d3 d5 4.exd5 Nxd5 5.Nf3 Nc6 6.O-O Be7 7.Re1 |
+0.45 | The premature central counter: the game opens before Black completes development |
Evaluations measured by us with Stockfish 19, depth 22, on 15/09/2026.
Frequently asked questions
What is the difference between the Bishop's Opening and the Italian?
The move order. In the Italian, White plays 2.Nf3 and 3.Bc4, against Black's knight already on c6; in the Bishop's Opening, the bishop comes out first, and the g1 knight is free to go to f3, to e2 or to wait while f4 is still possible. Many games meet later, but the Bishop's Opening avoids the Petrov Defence, which only exists after 2.Nf3.
Is the Urusov Gambit sound?
It is sound and close to equality. After 3.d4 exd4 4.Nf3, the position measures −0.20: White is a pawn down, but develops quickly and opens the centre against Black's king. The capture 4...Nxe4 leads to −0.14, and 4...d5, which returns the pawn, to +0.16.
Why is 3.Nf3 a mistake against 2...Nf6?
Because it leaves e4 undefended. After 3.Nf3 Nxe4, the position measures −0.47, against −0.04 for 3.Nc3 and −0.08 for 3.d3. The two correct moves protect the pawn before developing the g1 knight; 3.Nf3 develops first and gives up the pawn without the compensation White has in the Urusov Gambit.
Guides on this opening
Common Mistakes & Where Most Amateurs Go Wrong
- 01 Capturing 5...dxe4? against 3.d3 c6 4.Nf3 d5 5.Bb3. The knight goes to g5 and hits f7 together with the b3 bishop; Black needs 6...Be6 and still stands at +1.04, against +0.02 for 5...a5. The line:
1.e4 e5 2.Bc4 Nf6 3.d3 c6 4.Nf3 d5 5.Bb3 dxe4 6.Ng5+1.04 - 02 Sacrificing 6.Nxf7? in the 3.d3 Bc5 4.Nf3 d6 5.Ng5 O-O setup. After 6...Rxf7 7.Bxf7+ Kxf7, White has given two minor pieces for rook and pawn, and the position measures −2.69. The move 5.Ng5 itself already measures −0.37. The line:
1.e4 e5 2.Bc4 Nf6 3.d3 Bc5 4.Nf3 d6 5.Ng5 O-O 6.Nxf7 Rxf7 7.Bxf7+ Kxf7−2.69 - 03 Playing 3.f4? against 2...Nf6, as in a King's Gambit with the bishop already out. Black opens the centre with 3...d5, the e4 pawn falls before White has developed, and the position measures −0.94. The line:
1.e4 e5 2.Bc4 Nf6 3.f4 d5−0.94
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