The Baltic Defense, also known as the Grau or Sahovic Defense, starts with 1.d4 d5 2.c4 Bf5!?. Black develops the queen's bishop immediately, but White can challenge it with cxd5, Qb3, Qa4+, and sometimes e4 or g4.
Use this page as a practical map of the early ...Bf5 Queen's Gambit. The Baltic is not a quiet equalising system; it is a surprise weapon where Black solves the bishop problem early and White tries to prove that the bishop has become a target.
Choose your side and problem. The adviser points to a named diagram and matching supplied replay.
Every diagram below uses a python-chess validated FEN from the stated example sequence. Each card gives the exact move order that reaches the position.
Black solves the usual Queen's Gambit bishop problem immediately with 2...Bf5. The gain is activity; the cost is that the bishop can become a target once White plays Qb3, cxd5 or e4.
Example sequence: 1. d4 d5 2. c4 Bf5
This is the strategic warning behind the Baltic. If Black gets too casual, White can combine Qb3 pressure with e4, gaining time on the developed bishop.
Example sequence: 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. cxd5 exd5 5. Qb3 Nc6 6. Nf3 Nb4 7. e4
After 3.cxd5, Black often captures on b1 and accepts structural oddness. White checks with Qa4+ and tries to make the early bishop sortie look like a loss of time.
Example sequence: 1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ c6 5. Rxb1 Qxd5
Black can meet Qa4+ with ...Qd7 and invite queen trades. The resulting positions are less flashy but still ask whether Black has justified moving the bishop so early.
Example sequence: 1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ Qd7 5. Qxd7+ Nxd7 6. Rxb1 Ngf6
The direct 3.Qb3 attacks b7. Black can answer with the sharp ...e5 idea, sacrificing material or activity to keep the game tactical.
Example sequence: 1. d4 d5 2. c4 Bf5 3. Qb3 e5 4. Qxb7 Nd7 5. Nc3 exd4 6. Nxd5 Bd6 7. Nf3
A common Baltic structure is Qb3 met by ...Qb6. If White pushes c5, the game becomes a space battle where Black must find counterplay before queenside pressure grows.
Example sequence: 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 c6 5. Qb3 Qb6 6. c5 Qc7 7. Bf4 Qc8 8. Nh4 Bg6
In some slower Baltic lines Black reinforces the bishop with ...c6, ...Nd7 and ...f5. It is ambitious and double-edged: Black fights for dark-square control but leaves hooks for White.
Example sequence: 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 c6 5. e3 Nd7 6. Bd3 Bxd3 7. Qxd3 f5 8. O-O Bd6
White can immediately challenge the Baltic bishop with g4. This is not the main road, but it captures the practical question: if Black grabs the pawn, can White use time and initiative?
Example sequence: 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. g4 Bxg4 5. cxd5 exd5 6. Qb3 Nc6 7. Bg2 Nf6
Black develops the light-squared bishop before it gets locked in.
White clarifies the centre and asks Black to justify ...Bf5 concretely.
White attacks b7 and exposes the fact that the bishop has left home early.
White chases the bishop immediately and turns the game into a tactical test.
Choose a model game. The replay uses only the supplied Baltic PGNs, stripped to the seven mandatory replay tags and annotation-free mainline move text.
A short tactical warning: Qb3 and e4 ideas punish Black when the bishop becomes exposed.
A Black-side model showing how the Baltic can turn into active pressure and a direct mating attack.
Shirov's Black-side model with a more ambitious ...f5 structure and active counterplay.
The g-pawn chase model: White goes straight after the Baltic bishop with 4.g4.
The Baltic Defense is a Queen's Gambit line beginning 1.d4 d5 2.c4 Bf5. Black develops the queen's bishop immediately instead of locking it behind ...e6. Start with the Baltic Defense Starting Position diagram to see the idea before choosing a response.
The names Grau Defense and Sahovic Defense are alternate names for the same 1.d4 d5 2.c4 Bf5 system. They are less common than Baltic Defense, but useful for search and opening-book recognition. Use the Replay Lab to see both older and later practical examples.
It is an unusual Queen's Gambit Declined family line because Black answers the Queen's Gambit with early bishop development rather than the normal ...e6-first structure. The bishop-target warning diagram shows why this independent move order is risky.
The traditional ECO code for the Baltic Defense is D06, although some supplied games transpose into D11-style Slav/QGD structures after ...c6. Use the starting diagram and the Qb3 Qb6 clamp diagram to separate the pure Baltic from later transpositions.
The most practical reply is often 3.cxd5, because it asks Black how the bishop on f5 will justify itself and prevents Black from getting a comfortable version of normal QGD development. Use the 3.cxd5 Bxb1 4.Qa4+ resource diagram as the main study anchor.
White plays cxd5 first to reduce Black's chance of comfortably holding the c4-pawn or building a clean ...e6/...c6 setup. It also opens tactical possibilities after ...Bxb1 and Qa4+. Use the Qa4+ Qd7 queen-trade route diagram to compare Black's safer response.
Qb3 hits b7 and highlights the drawback of the early ...Bf5 move. Black must either defend accurately, counter with ...e5, or accept uncomfortable queen pressure. Use the 3.Qb3 e5 diagram and then load Lukacs vs Vadasz.
White can often aim for e4 after preparing with Nc3, cxd5, Qb3 or Nf3. The point is to hit the bishop and seize central time. Use the bishop-target warning diagram, which shows why the Baltic is tactically sensitive.
3.Nc3 is natural and keeps options open, but White must watch for ...e6, ...c6 and ...Qb6 structures. It often transposes to Qb3 or cxd5 lines. Use the Qb3 Qb6 and c5 clamp diagram for a typical strategic branch.
White can play g4 in some lines to chase the bishop, but it is a committal attacking choice rather than a quiet refutation. If Black accepts with ...Bxg4, White needs fast development and pressure. Use the 4.g4 bishop chase diagram before loading Milov vs Miralles.
Black wants to solve the bad light-squared bishop problem immediately and avoid passive QGD development. The downside is that the bishop can become a target. Use the Baltic Defense Starting Position diagram and compare it with the bishop-target warning diagram.
Black usually plays ...e6 to support d5 and create a normal pawn centre after the bishop has escaped. The timing matters because White may use cxd5, Qb3 or e4 to attack the bishop. Use the Qb3 Qb6 clamp diagram for the solid setup.
One sharp answer is 3...e5, inviting a pawn-grab battle after Qxb7 and ...Nd7. It is not a quiet equalising system, but it creates practical chances. Use the 3.Qb3 e5 diagram and then load Lukacs vs Vadasz.
After 3.cxd5, Black sometimes captures on b1 to remove White's queenside knight and change the structure before recapturing on d5. The resulting positions are unusual and require accuracy. Use the 3.cxd5 Bxb1 4.Qa4+ resource diagram.
...Qxd5 can be playable in some branches but is dangerous if White gains time with Nc3, Bd2 and e4. That is the classic Baltic warning. Use the bishop-target warning diagram to see the tempo-gain theme.
Sosonko vs Ree is the best quick warning game because White's Qb3 and e4 ideas punish Black quickly. Load Sosonko vs Ree from the Replay Lab after studying the bishop-target warning diagram.
Ree vs Sahovic is a good Black-side model, ending with a direct attacking finish after Black survives the opening pressure. Load Ree vs Sahovic after studying the Qb3 and bishop-target diagrams.
Lautier vs Shirov is the supplied Shirov model, showing a more ambitious ...f5 structure and active Black counterplay. Load Lautier vs Shirov after studying the Shirov-style ...f5 structure diagram.
Shirov vs Svidler is the supplied White-side Shirov model, with Qb3 and c5 clamp ideas against the Baltic/Slav hybrid. Load Shirov vs Svidler after studying the Qb3 Qb6 and c5 clamp diagram.
Milov vs Miralles is the supplied model for the g-pawn chase against the Baltic bishop. It shows how sharp the position becomes after White gambits time and structure for initiative. Load Milov vs Miralles after studying the 4.g4 bishop chase diagram.
The Baltic is playable but risky. It is best used as a surprise weapon by players who understand the tactical problems around Qb3, cxd5 and e4. Use the adviser as Black and then test the line with a Black-win replay.
It can be good for club players as a surprise weapon because many White players will not know the exact punishments. However, Black must know the cxd5 and Qb3 antidotes. Start with the adviser and the 3.cxd5 Bxb1 diagram.
First learn 3.cxd5, the Qa4+ resource after ...Bxb1, and the Qb3 pressure idea. Those three themes cover the most important practical tests. Use the first four diagrams before loading any replay.
First learn how to meet 3.cxd5, 3.Qb3 and 3.Nc3 without letting e4 gain a free tempo on the bishop. Then study one Black-win model such as Ree vs Sahovic or Lautier vs Shirov in the Replay Lab.
The main lesson is that solving one opening problem early can create another: Black develops the bishop, but White may gain time by attacking it. Use the Baltic Defense Starting Position and bishop-target warning diagrams as the page anchors.
Start with the early ...Bf5 diagram, choose whether White tests with cxd5, Qb3 or g4, then use the Replay Lab to compare practical outcomes.