The Ragozin Variation starts with 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4. Black keeps a Queen's Gambit Declined centre but adds Nimzo-style pressure on c3, forcing White to choose between 5.Bg5, 5.cxd5, and 5.Qa4+.
Use this page as a practical Ragozin map. Start with the ...Bb4 pin, then choose your main branch: Bg5 pressure, Exchange Ragozin, Qa4+ Alekhine Variation, Vienna transposition, or Westphalian-style ...c5.
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. The board widget provides the computer-play option for the exact position.
Black plays ...Bb4 in a Queen's Gambit Declined structure, mixing QGD solidity with Nimzo-Indian pressure on c3. White must decide whether to meet the pin directly or turn the game into a concrete central battle.
Example sequence: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4
The 5.Bg5 h6 6.Bxf6 line removes Black's knight and asks whether the bishop pair and central pressure compensate for giving up the dark-squared bishop.
Example sequence: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 O-O 8. Rc1 dxc4 9. Bxc4 c5
White can exchange on d5 to avoid some Vienna-style transpositions. Black often develops with ...h6 and ...Bf5, keeping a firm QGD structure rather than entering immediate tactics.
Example sequence: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O 8. e3 Bf5
The Alekhine Variation checks on a4, asks Black to block with ...Nc6, and often continues with e3, castling, Qc2 or Bd2. It is a direct way to question the bishop on b4.
Example sequence: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Qc2
The Westphalian-style setup uses ...Nbd7 and ...c5 to challenge White's centre. Black keeps the b4 pin while striking before White can build comfortable pressure.
Example sequence: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 Nbd7 6. e3 c5 7. cxd5 exd5
Black can capture on c4 after Bg5 and transpose into Vienna-type play. White often responds with e4 and Bxc4, and the position becomes sharp immediately.
Example sequence: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 dxc4 6. e4 c5 7. Bxc4 cxd4 8. Nxd4
In the modern Exchange Ragozin, White sometimes plays h4, g4, or kingside pawn pressure to exploit Black's pinned-piece coordination. Black must react before the space gain becomes an attack.
Example sequence: 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 Nbd7 8. e3 g5 9. Bg3 Ne4 10. Nd2 Nxg3 11. hxg3
The Qa4+ branch can become tactically dangerous if White's pieces drift and Black gets ...e5, ...Bf5, and kingside pressure. Mamedyarov's games show how quickly the Ragozin can punish imprecision.
Example sequence: 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Bd2 dxc4 8. Bxc4 a6 9. O-O Bd6 10. Rad1 e5 11. dxe5 Nxe5 12. Be2 Qe7 13. Ng5 Bf5
The defining Ragozin idea: a QGD centre with Nimzo-style pressure on c3.
White develops actively, and Black chooses ...h6, ...Nbd7, or ...dxc4.
White clarifies the centre and often avoids the sharpest Vienna transpositions.
The Alekhine Variation asks Black to block and commit the queenside pieces early.
Choose a model game. The replay uses only the supplied Ragozin PGNs, stripped to the seven mandatory replay tags and annotation-free move text.
A Nimzo-flavoured Ragozin structure where White builds a centre after ...Bxc3.
A model for the Bxf6 Qxf6 setup and Black's active conversion.
A modern Exchange Ragozin battle with unusual kingside pawn structure and long squeeze.
A warning model for Black's attacking chances in the Qa4+ Alekhine branch.
The QGD Ragozin Variation is a Queen's Gambit Declined system where Black plays ...Bb4 after Nf3 and Nc3. It combines QGD central solidity with Nimzo-Indian pressure on the c3 knight. Start with the Ragozin Starting Position diagram to see the pin before choosing a branch.
The main move order is 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Bb4. Many games reach the same position by 1.Nf3 or 1.c4 move orders, but the key idea is still the ...Bb4 pin in a QGD structure. Use the Ragozin Starting Position diagram as the anchor.
The Ragozin is usually classified as a Queen's Gambit Declined variation, but it borrows the Nimzo-Indian idea of pinning the c3 knight with ...Bb4. That hybrid identity is exactly why it is practical for Black. Use the Ragozin Starting Position diagram and compare it with the Exchange Ragozin with g-pawn storm diagram.
Black plays ...Bb4 to pressure the c3 knight, make e4 harder for White, and create tactical possibilities around doubled c-pawns or central breaks. The bishop also makes White's normal QGD development less automatic. Use the Ragozin Starting Position diagram before choosing whether White plays Bg5, cxd5, or Qa4+.
The Ragozin Variation is sound and has been used regularly by elite players. Its attraction is that Black can play dynamically without abandoning the QGD pawn centre. Use the adviser as Black to choose between the Westphalian-style ...c5 plan, the Exchange ...Bf5 plan, or the Vienna Route diagram.
The Ragozin is good for club players who like active development and do not want a passive Queen's Gambit Declined. It does require understanding move-order transpositions into Vienna and Nimzo-style structures. Start with the Ragozin Starting Position diagram and then study the 5.cxd5 exd5 and ...Bf5 diagram.
White's main options are 5.Bg5, 5.cxd5, and 5.Qa4+. Each asks a different question: Bg5 develops pressure, cxd5 avoids some sharp transpositions, and Qa4+ challenges the bishop immediately. Use the adviser to jump between the 5.Bg5 h6 6.Bxf6 diagram, the Exchange ...Bf5 diagram, and the 5.Qa4+ Alekhine Variation diagram.
The idea of 5.Bg5 is to develop actively and increase pressure on f6 before Black resolves the c3 pin. Black can answer with ...h6, ...Nbd7, or ...dxc4. Use the 5.Bg5 h6 6.Bxf6 diagram and then compare the Vienna Route diagram.
White plays 5.cxd5 to clarify the centre and reduce Black's chances of transposing to the sharp Vienna Variation. After ...exd5, White often plays Bg5, Bh4, e3, and Black can choose ...Bf5. Use the 5.cxd5 exd5 and ...Bf5 diagram for this repertoire route.
The 5.Qa4+ Alekhine Variation checks the king and asks Black to block with ...Nc6. White then usually plays e3, Qc2 or Bd2, and tries to make the b4 bishop commit. Use the 5.Qa4+ Alekhine Variation diagram before loading Mamedyarov vs Kramnik or Nakamura vs Mamedyarov.
White can play g-pawn attacks in some Exchange Ragozin structures, especially after ...h6 and ...g5. These lines are sharp and can punish Black if the kingside becomes overextended. Use the Exchange Ragozin with g-pawn storm diagram and then load Carlsen vs Aronian.
White can avoid the pure Ragozin by choosing move orders without Nc3 or by playing early cxd5 to steer into Exchange QGD structures. However, many anti-Ragozin choices give Black easy development. Use the 5.cxd5 exd5 and ...Bf5 diagram to see the cleanest avoidance route.
Black's main plan is to combine the ...Bb4 pin with central pressure from ...dxc4, ...c5, ...Nbd7, or ...h6. The exact plan depends on White's fifth move. Use the Ragozin Starting Position diagram and the adviser to choose the right branch.
The Westphalian-style plan uses 5.Bg5 Nbd7 6.e3 c5 to challenge White's centre while keeping the bishop on b4. Black strikes before White can build a comfortable QGD setup. Use the 5.Bg5 Nbd7 6.e3 c5 diagram to study this structure.
The Ragozin can transpose to Vienna-type play after 5.Bg5 dxc4 6.e4 c5 7.Bxc4 cxd4 8.Nxd4. The game becomes sharp and central rather than a slow QGD squeeze. Use the 5...dxc4 Vienna Route diagram to keep this branch separate.
Black plays ...h6 to question the bishop on g5 and decide whether White will take on f6 or retreat to h4. After Bxf6 Qxf6, Black often gets clear development and central counterplay. Use the 5.Bg5 h6 6.Bxf6 diagram to see the tradeoff.
Black plays ...Bf5 after cxd5 exd5 to develop the light-squared bishop actively and avoid being trapped in a passive Exchange QGD. This setup also sidesteps some Vienna transpositions. Use the 5.cxd5 exd5 and ...Bf5 diagram before loading Grischuk vs Kramnik.
The Ragozin is dangerous for White because normal developing moves can run into central breaks, pins, and kingside tactical themes. The ...Bb4 bishop changes the value of Nc3, e4, Qa4+ and Bg5 decisions. Use the Mamedyarov attack and dark-square tactics diagram as the warning example.
Kramnik vs Morozevich is the best supplied replay for a Nimzo-flavoured Ragozin structure with ...Bb4 and pressure on c3. It shows how White can build a centre after the bishop exchange. Load Kramnik vs Morozevich after studying the Ragozin Starting Position diagram.
Aronian vs Kramnik is the best supplied replay for the 5.Bg5 h6 6.Bxf6 Qxf6 setup from Black's side. It shows how Black can simplify and convert an active structure. Load Aronian vs Kramnik after studying the 5.Bg5 h6 6.Bxf6 diagram.
Grischuk vs Kramnik and Kramnik vs Grischuk are strong supplied replays for Exchange Ragozin structures. They show both White pressure and Black counterplay after cxd5 exd5. Load Grischuk vs Kramnik after studying the 5.cxd5 exd5 and ...Bf5 diagram.
Mamedyarov vs Kramnik and Nakamura vs Mamedyarov are the best supplied replays for the Qa4+ Alekhine Variation. They show that the check can become positional or tactical depending on Black's central break. Load Nakamura vs Mamedyarov after studying the 5.Qa4+ Alekhine Variation diagram.
Carlsen vs Aronian is the best supplied replay for kingside pawn-storm themes in an Exchange Ragozin structure. White uses an unusual pawn structure and long-term pressure to win. Load Carlsen vs Aronian after studying the Exchange Ragozin with g-pawn storm diagram.
Nakamura vs Mamedyarov is the best supplied replay for Black's attacking chances in the Qa4+ branch. Black uses ...e5, ...Bf5 and piece activity to punish imprecision. Load Nakamura vs Mamedyarov after studying the Mamedyarov attack and dark-square tactics diagram.
Train the Ragozin in 10 minutes by studying the starting position, the 5.Bg5 h6 6.Bxf6 line, and the 5.cxd5 exd5 Exchange structure. That gives you the pin, the main bishop decision, and the cleanest strategic branch. Use the adviser to choose one matching replay.
Remember that the Ragozin is a hybrid: QGD centre plus Nimzo-style ...Bb4 pressure. White must choose Bg5, cxd5 or Qa4+ with purpose, while Black must be ready for Vienna, Westphalian, and Exchange transpositions. Use the Ragozin Starting Position diagram as the anchor and the Replay Lab as the practical test.
Start with the Ragozin Starting Position diagram, choose Bg5, cxd5 or Qa4+, then test your branch with one supplied model game from the Replay Lab.