Seven Systems, Six Videos, One Promise: Reading a 1.d4 Sideline Course Through Data

People call it a shock; I call it unread data. A link to a chess course landed on my desk. The title, 'The Right King's Road,' is almost certainly a mistranslation of the German idiom 'der richtige Königsweg.' Inside, the copy promises a Black repertoire against the anti-Queen's Gambit systems that White players use to avoid 2.c4 theory. Seven openings are listed: the Colle, Trompowsky, Torre, London, Catalan, Blackmar-Diemer and Richter-Veresov. The product, however, consists of only six videos, presented by IM Valeri Lilov, a Bulgarian international master and trainer. Seven minus six equals one. That simple arithmetic invites an obvious but rarely asked question: which system is being squeezed, and which one gets short-changed? In a market built on promises, numbers usually lie. Today, the numbers are telling the truth. To understand why this product exists, look at the club chess environment. Players below 2026 Elo, who make up the bulk of online course buyers, routinely face a quiet nightmare: White plays 1.d4, 2.Nf3, then 3.e3, 3.Bf4 or 3.Bg5. There is no forcing line, no gambit, no deep theory. Yet Black still loses, slowly and painfully. These are the Colle, London, Torre and Trompowsky systems – dismissed by strong players as 'unambitious,' but genuinely dangerous at club level. The danger is not that White is objectively better. It is the danger of drift: White plays safe, while Black, lacking a plan, gradually loses the thread. Lilov's course targets exactly this pain point, offering clear plans to neutralize each system. The first thing to establish is what this product is not. It is not a Chessable-style 'Lifetime Repertoire' with hundreds of engine-checked lines. The copy describes it as 'a relevant plan for Black for each single opening.' That is a plans-based course, not a lines-based one. This is a legitimate pedagogical choice for players under 2026: they need to know where the knight goes and when to trade pieces, not memorize 25 moves of the Tartakower Variation. But it also means there is no claim of novelty, no new move, no database breakthrough. The value lies in teaching, not in raw material. The most interesting feature of the article is its internal tension. On one hand, it concedes that White's approach is 'not very ambitious': White avoids 2.c4 and all the mainline theory of the Queen's Gambit, Slav, Semi-Slav and Orthodox QGD. On the other hand, it calls these systems 'extremely dangerous.' In chess terms, these are not contradictory. The danger is not objective strength but planless play. White collects a risk-free game; if Black does not know the typical plan, the position slowly gets worse. This is drift risk, not immediate knockout. A buyer who interprets 'dangerous' as 'objectively strong' will be mis-calibrated. A buyer who understands the product as a map through a quiet forest will get exactly what they need. The problem: the article never tells buyers which kind of product they are purchasing. Now the technical part, where numbers speak. The article places all seven systems under an imaginary umbrella: 'after 1.d4 d5.' That umbrella does not fit. The Catalan, by definition, requires 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2. It requires White to play c4 – precisely the move the article says White is avoiding. The Catalan is a mainline opening with enormous theory, not a sideline. Including it in a six-video course about 'systems that avoid 2.c4' is like putting a tank on a list of bicycles: it is there, but it does not belong. This is a serious classification error, and it reveals a structural limit. The Trompowsky has a similar issue. The real Trompowsky begins 1.d4 Nf6 2.Bg5. If Black plays 1...d5 first, then 2.Bg5 is a different line, less clearly defined. Move order in chess is not a detail; it determines the entire tree of variations. A course claiming one plan per opening must handle this carefully, or the student will wander into unmapped territory. Then there is the Blackmar-Diemer Gambit: 1.d4 d5 2.e4. This is a romantic gambit, sacrificing a pawn for open lines. Its spirit is opposite to the Colle or London. Grouping it with quiet systems is a category error. Black needs a completely different strategy against a gambit: accept, decline, or counter-gambit. This deepens the suspicion that one video must cover more than one opening. The difficulty gradient is also steep. Colle and Torre can be handled with a general plan and a dozen concrete moves. London and Trompowsky require accuracy against ...c5, ...Ne4, ...h6 and the dark-squared bishop trade. The Catalan requires a strategic decision – Open Catalan with ...dxc4 and ...b5, or Closed with ...Nbd7, ...c6, ...b6. Each is a separate system. A six-video course, one video per system, cannot do justice to the Catalan. Below 2026, this may be acceptable. Above 2200, a 'plan-level' approach will collapse against a book-prepared opponent. As a journalist who has tracked chess data for decades, I am struck by the absence of verification. The entire article contains no ACPL, no engine-match rate, no sample game, no win/loss statistics from any database. The author's current rating, playing history and OTB activity are all unstated. In a market where anyone can run Stockfish to verify a claim, this silence is itself a signal. It does not mean the course is bad; it means the marketing runs on emotion, not evidence. 'Many chess players have painfully experienced' is a targeting device, not a statistic. Age is the only variable that never lies. The article is undated. If the course was recorded before the explosion of the Jobava-Prie London, its content may be stale. For a plans-based product, staleness is less dangerous than for a lines-based one, but it still undermines value. What about coverage gaps? A Black repertoire built on '1...d5 + plans' naturally omits systems that reach similar structures by other routes. The Jobava-Prie London, 1.d4 Nf6 2.Nc3 d5 3.Bf4, is one of the most popular club-level weapons today. Also missing: g3/Bg2 'Pseudo-Catalan' setups without c4. Neither appears in the list. A buyer should audit the table of contents before paying. Let me play contrarian for a moment. Maybe the arithmetic is not a weakness but a feature. A 300-variation course is too much for a part-time club player. Six videos with clear plans are finishable. Maybe the lack of data reflects an uncomfortable truth: information is no longer scarce. Anyone can open Lichess, run Stockfish, and find the moves. What is scarce is a coherent narrative. The course's value, if any, lies in its pedagogical layer, not in exclusive information. But beware of a cognitive trap: a player buys the course, studies ten hours a week, starts winning more, and credits the course. Correlation is not causation. The title 'IM, Bulgarian trainer' also positions the product. GM-authored courses are sold at a higher tier. IM-authored courses typically target club players, which is exactly the audience. The word 'trainer' suggests a coaching identity rather than an active competitive one. That does not discredit the content, but it shifts the basis of authority from tournament results to pedagogical clarity. So, the final question is not 'Is this course good?' but 'What are you actually buying?' If you are buying a nudge to take chess seriously, six videos with clear plans may be worth the price. If you are buying the belief that you will never lose to the London again, remember: no course can replace the act of sitting at the board and confronting your own mistakes. Numbers are asceticism: you have to give up comfort to see the truth.