Opening Builder – Réti for White: Theoretical Knowledge, Part 1
Where Understanding Becomes Preparation
The Opening Builder – Réti for White: Theoretical Knowledge, Part 1 is the fifth part of our six-month Réti project, and it marks the moment the whole approach changes gear.
After four months of studying the fundamental structures of the 1.Nf3 complex — Réti and Catalan-type formations, King's Indian and Grünfeld structures, English Opening positions with symmetrical setups, Hedgehog formations and Maróczy-type structures — we are now ready to translate that understanding into concrete theoretical preparation.
In this phase, theory is no longer kept light. We look at concrete move orders and specific variations, where precise theoretical knowledge is required. The bet the whole project has been making is cashed in here: with the typical ideas and structures already familiar, the theory is absorbed quickly rather than memorised painfully.
This first half of the theoretical part covers all Black setups involving the move ...d5.
The material is based on the camp of the same name and is now transformed into a complete digital product, including full video recordings of all lectures, a structured PGN file following the logic of the training sessions, and extensive theoretical analysis for deeper study.
Lecture 1 – The Capture on c4 and the Slav Setups
The first lecture opens with Black's most principled try: taking the pawn after 1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.c4 dxc4.
Our answer is 5.Qa4+, regaining the pawn immediately and aiming to build a powerful pawn centre.

The lecture covers both of Black's main replies:
- 5...Bd7 – the main line. Here the recommendation departs from fashion: instead of the popular 7.Ne5, which leads to an endgame edge too small to convert, the course proposes the far rarer 7.O-O!, posing genuine practical problems. The plan is simple to remember — e2-e4, Qc4-e2, Rf1-d1 and d2-d4 — and the lecture teaches the key resource by heart: whenever Black meets our centre with ...b5-b4, the answer is e4-e5!, offering the exchange for a tremendous lead in development. Against the critical 9...b5, two options are given: the safe 10.Nxb5 and the dynamic 10.Qe2!?
- 5...c6 and 5...Nbd7 – with the important nuance that after 6.Qxc4 c5 we do not castle immediately, but play 7.d3 first, so that the queen is protected when we answer ...b6 with Nf3-d4 and Nd4-c6
The second half of the lecture turns to the Slav setups without ...Bg4, including the typical 6.Qb3 response to ...Bf5, and a complete plan for the resulting endgame — illustrated by a blitz game the author himself won against GM Sergei Movsesian.
Lecture 2 – The Slav with ...Bg4, 6.Ne5!? and the Closed Catalan
The second lecture completes the picture against Black's solid systems.
- Slav setups with ...Bg4 – here the author is direct about his own material: "I am quite proud of my recommendation here." After 8.cxd5 exd5 we reach a Carlsbad structure with our bishop on g2 rather than d3 — which classical understanding would call a concession, but which turns out to support the central break f2-f3 and e2-e4. The recommendation is 9.Ng5!?, a rare and largely unexplored line where Black must find a long series of precise moves merely to equalise
- The 6.Ne5!? system – against ...d5/...e6/...Be7 setups, described as one of the author's favourite variations, with the critical 6...c5! and the resulting Dutch-flavoured positions where White plays f2-f4 and expands on the kingside
- The Closed Catalan – because a Réti player must know how to handle transpositions. Both the ...Bb7 and ...Ba6 versions are covered, built around the setup with 8.Rd1, b2-b3, Nb1-c3 and e2-e4
Lecture 3 – The Reversed Benoni: the Main Systems
The third lecture is devoted to the Reversed Benoni, reached after 1.Nf3 d5 2.g3 Nf6 3.Bg2 e6 4.c4 d4.

The author is explicit about why this section matters most: "These positions cannot be learned solely by working with the computer or by memorising the variations. In order to play the Benoni structures successfully, you also need a very deep understanding."
After 5.O-O c5 6.d3 Nc6 7.e3, the recommendation is 8.exd4 cxd4 9.Na3! — a move that keeps every option open, prepares Nc2 with pressure on d4, and readies the thematic b2-b4 advance.
The lecture covers all three of Black's main continuations — 7...Bd6, 7...Be7 and 7...h6 (met with the accurate 8.Na3!) — and teaches the recurring strategic ideas that govern them:
- When to play b4 – "when you have the chance to deliver the advance b2-b4, you must take it"
- When c4-c5 works – particularly when Black's dark-squared bishop cannot retreat to f8
- The pawn sacrifice for the light squares – the principle that giving up d3 to eliminate Black's light-squared bishop leaves White with full domination
- The key strategic revelation: 13.b5! – space on the queenside matters more than the c5-square, because "our opponent can put a piece on c5, but he cannot put all the pieces on c5"
The analysis also includes a concrete improvement on the game Anton Guijarro–Eljanov, where 17.Kg2! is preferred to the natural 17.Bd2.
Lecture 4 – The Reversed Benoni: Move Orders and Sidelines
The final lecture completes the theoretical coverage of the ...d5 complex by addressing the alternative routes into the Reversed Benoni and the setups where Black avoids ...c5 altogether:
- 1.Nf3 d5 2.g3 c5 3.c4 d4 – the direct move order, and how it differs from the main line
- Black plays ...Nc6 without ...c5 – an independent and often underestimated setup
- 2...Nc6 3.d4 Bf5 and 2...Nc6 3.d4 Bg4 – the bishop developments outside the pawn chain, and how to exploit them
A Structured Learning System
The strength of the course lies in its structure. The PGN file follows exactly the logic of the lectures, chapter by chapter, with the theoretical analysis placed where it belongs — behind the explanation of the idea, not in front of it.
Throughout the material, the author repeatedly distinguishes what must be remembered from what can be understood. Long forcing lines are given, but almost always with a note explaining that you need not memorise them — that the resulting positions can be played on the basis of the plans already learned. That is the whole point of having spent four months on structures first.
The result is a course that can be studied in three ways: by reading the introductions for the strategic overview, by working through the main recommendations for a playable repertoire, or by studying the reference analysis for complete theoretical preparation.
Part of a Larger Project
This course is the fifth step of the six-month Opening Builder project, and the first of its two theoretical volumes. The first four parts built the structural foundation: the formations after 1.Nf3 d5 2.g3, after 2.c4 e6 3.g3, after 2.c4 g6 3.Nc3, and the English Opening complex after 1.Nf3 c5 2.c4.
Theoretical Knowledge, Part 1 covers everything Black can try with ...d5. Part 2 completes the theory and assembles the finished repertoire — the concrete move orders, the practical "if–then" decisions, and the intelligent transpositions that hold the whole system together.
Improvement in chess is not random. It is structured, cumulative, and systematic. Each part of the Opening Builder is designed to add a stable layer to your repertoire and to your general strategic understanding.