Ruy Lopez Fianchetto Defence: Adviser, Diagrams and Replay Lab

The Ruy Lopez Fianchetto Defence is 1.e4 e5 2.Nf3 Nc6 3.Bb5 g6. Black prepares ...Bg7 and chooses a quiet positional setup instead of the usual 3...a6 or 3...Nf6. Start with the Fianchetto Start Diagram so the g6 and ...Bg7 plan is clear.

Yes. The Ruy Lopez Fianchetto Defence is also known as the Smyslov Defence, Barnes Defence, or Pillsbury Defence. Those names usually refer to the same early 3...g6 idea. Use this page as the 3...g6 hub and treat the names as aliases.

The move order is 1.e4 e5 2.Nf3 Nc6 3.Bb5 g6. White can then choose 4.c3, 4.d4, 4.O-O, or Bxc6 ideas. Use the first two diagrams before choosing a replay group.

Black plays 3...g6 to develop the bishop to g7, support the centre from a distance, and avoid the most analysed Berlin, Marshall, and Closed Spanish paths. The drawback is that White can often claim space quickly. Use the adviser with side set to Black to choose a compact setup.

The Fianchetto Defence is playable, but it is a sideline. Black must be careful against 4.d4 and Bg5 ideas because White can sometimes gain a lead in development. Use the 4.d4 Bg5 Diagram and the replay games with White pressure to understand the danger.

Yes, it can be a practical club weapon if Black understands the setup rather than memorising only one line. It often leads to strategic battles with ...Bg7, ...d6, ...a6, and ...Nge7. Use the Fianchetto Focus Plan Adviser to choose one simple black plan.

White often plays 4.c3, preparing d4 and asking Black to prove the fianchetto setup. Another direct try is 4.d4. Use the 4.c3 a6 Diagram and then compare it with the 4.d4 Bg5 Diagram.

The line 3...g6 4.c3 a6 became important because Black asks the bishop to clarify before continuing with ...Bg7, ...d6, or ...Nge7. It gives Black a flexible game if handled carefully. Replay Karpov vs Spassky as the first classical model.

After 4.d4 exd4, White can use Bg5 ideas to increase pressure before Black completes development. This is one reason the variation is less common at top level. Use the 4.d4 Bg5 Diagram before replaying Smirin vs Sokolov or Gopal vs Sokolov.

The 4.d4 exd4 5.Bg5 line develops with tempo and makes Black's kingside setup less comfortable. Black often tries ...Be7 or ...Qe7, but White can keep pressure. Use the Bg5 diagram and replay one game from the Direct d4 and Bg5 group.

The 4.d4 exd4 5.c3 idea is a gambit attempt where White offers central material for development and open lines. It can become sharp quickly and is less fully mapped than the quieter 4.c3 a6 systems. Use the adviser set to tactics before trying it.

Yes, ...Nge7 is a common part of Black's setup. It supports ...d5 ideas in some lines and avoids blocking the g7-bishop with a knight on f6. Use the ...Nge7 Setup Diagram and replay Rozentalis vs Sokolov or Tiviakov vs Sokolov.

Yes, ...a6 is very common after 4.c3. Black asks the bishop to choose a square and then builds with ...Bg7, ...d6, and sometimes ...Nge7. Use the 4.c3 a6 Diagram to remember this practical move order.

Black often wants ...Bg7, ...d6, ...Nge7, ...O-O, and sometimes ...f5 or ...b5 depending on White's centre. The exact setup depends on whether White plays c3, d4, Bxc6, or Bg5. Use the branch map to avoid mixing the plans.

White usually tries to take space, open the centre, or exploit Black's slower kingside development. The most thematic tools are c3, d4, Bg5, and sometimes Bxc6. Use the adviser with side set to White and problem set to plans.

Black's main danger is becoming too slow. If Black spends time on ...g6, ...Bg7, and quiet moves while White opens the centre, the fianchetto bishop may not compensate. Use the 4.d4 Bg5 Diagram as the warning position.

White's main danger is overextending the centre without calculating Black's counterplay on e4, d4, and the dark squares. Black can hit back with ...d5, ...f5, or piece pressure. Use the replay lab to compare White wins with Black counterattacks.

The Cozio Defence uses 3...Nge7 first, while the Fianchetto Defence uses 3...g6 first. Both can share ...Nge7 and ...Bg7 ideas later, but the first move changes White's best timing. Use the comparison notes and the final guide links to keep them separate.

The Modern Steinitz usually starts with 3...a6 4.Ba4 d6, while the Fianchetto Defence starts with 3...g6. Some lines transpose into ...d6 and ...g6 structures, but the early bishop question is different. Use the 4.c3 a6 Diagram to track the move order.

The Cordel Defence develops the bishop actively with 3...Bc5, while the Fianchetto Defence prepares ...Bg7 with 3...g6. Cordel tests White's c3 and d4 by piece activity; Fianchetto tests whether Black's slower setup can stay flexible. Use the related Ruy Lopez links after the FAQ.

Yes, 3...g6 works well as a surprise weapon because many Ruy Lopez players are prepared for 3...a6, 3...Nf6, or 3...f5 instead. The surprise is useful only if Black knows the 4.c3 a6 and 4.d4 answers. Use the adviser to build one line against each.

Yes, the system is associated with Vasily Smyslov and Boris Spassky, which is why it is often called the Smyslov Defence. The replay lab includes Karpov vs Spassky as a useful classical model. Start there if you want historical context.

It is rare because White's direct central methods, especially d4 with Bg5 ideas, can be uncomfortable for Black. Strong players still use it occasionally as a surprise system. Use the replay lab to see both the practical attraction and the strategic risk.

Black should first study 3...g6 4.c3 a6 and the plan with ...Bg7 and ...d6. Then add a direct answer to 4.d4 exd4 5.Bg5. Use the adviser with side set to Black and study time set to 20 minutes.

White should first study the direct central approach with 4.d4 and the flexible 4.c3 plan. Then add Bxc6 ideas if Black uses ...a6 early. Use the 4.d4 Bg5 Diagram before choosing a replay game.

Watch Karpov vs Spassky first. It shows the classical 4.c3 a6 structure and gives a clear high-level model of the system. Select it in the Replay Lab after reviewing the 4.c3 a6 Diagram.

Rozentalis vs Sokolov and Shirov vs Azmaiparashvili are useful black-counterplay examples. They show that Black's fianchetto structure can become active when White's centre is not perfectly controlled. Use the replay selector's Black counterplay group.

Smirin vs Sokolov and Gopal vs Sokolov are useful models for the 4.d4 and Bg5 pressure idea. They show White opening the centre and making development count. Use the Direct d4 and Bg5 replay group.

Anand vs Nakamura from the Tal Memorial is the modern elite reference in this supplied set. It contains rich 3...g6 ideas and many related transpositional notes. Use it after the basic diagrams, not as your first simple model.

Yes, it can transpose into structures with ...a6, ...d6, ...Nge7, and ...Bg7 that resemble Modern Steinitz or Cozio-style setups. The first three moves still matter for naming the page. Use the branch map before assuming a transposition.

Yes, Bxc6 is a practical option, especially after Black has played ...a6 or when White wants to damage the queenside structure. It changes the game from a normal Spanish centre into a structure battle. Use the Bxc6 Structure Diagram for that plan.

It is mainly positional, but tactics appear when the centre opens with d4, c3, Bg5, or Bxc6. Black's dark-square bishop can become powerful if White overextends. Use the adviser with problem set to tactics if you are unsure about the centre.

It requires moderate theory. The system is smaller than the Berlin or Closed Spanish, but the direct d4 lines need accurate knowledge. Study one 4.c3 a6 model, one 4.d4 Bg5 model, and one Black counterplay model from the Replay Lab.

Choose your side, branch, problem, and study time. The adviser then points you to a diagram, a replay game, and a concrete focus task. Press Update my recommendation after changing the selectors.

Choose one replay group, watch the first 12 moves, and pause when Black plays ...Bg7, ...a6, ...Nge7, or White plays d4. Those early decisions usually explain the middlegame. Start with one classical game before moving to the sharp d4 examples.

It can mention the deferred version, but the main page should stay focused on 3...g6. Deferred versions after ...a6 and ...Ba4 belong as comparisons unless search data later supports a separate page. Use this page as the immediate Fianchetto Defence hub.

After this page, compare the Cozio Defence, Modern Steinitz Defence, Cordel Defence, and Berlin Defence. They show different ways Black can sidestep the heaviest main-line Ruy Lopez theory. Use the final guide links to connect this system with the wider Spanish family.