Valeri Lilov's Six Videos and the d4 Problem: What the Opening Data Says

I read the course description three times in one evening in Shenzhen. Six videos. Eight opening systems. One promise: Black will have a plan against every d4 sideline that "not very ambitious" opponents like to use. But when I redrew the move orders on paper, two of those eight systems cannot arise after 1.d4 d5 — the Trompowsky begins 1.d4 Nf6 2.Bg5, and the Torre runs 1.d4 Nf6 2.Nf3 followed by 3.Bg5. They belong to the Nf6 family, not the d5 family. That was the moment I understood I was reading a hastily written sales page rather than an opening analysis.

That small detail matters more than it looks. In chess, move order is the spine. A coach may skip a few lines, but he cannot misclassify the opening family of his own product. When the headline calls it an interview with Timur Turlov while the body never mentions Timur Turlov once, and the name Valeri Lilov never appears in that headline, the problem has moved beyond the board.

When the data does not lie, we are the ones lying to ourselves.

The theory tax and those who avoid it

At club and intermediate level there is a real, durable phenomenon: White players increasingly dodge 2.c4. They do not want to enter the maze of the Slav, Semi-Slav, Queen's Gambit Accepted or orthodox QGD — systems that demand hundreds of lines memorised precisely. Instead they choose "systems": the London with an early Bf4, the Colle with e3 and Bd3, the Torre, the Trompowsky, the Catalan, the Blackmar-Diemer, the Richter-Veresov.

This is a genuine phenomenon. I have followed amateur events and online games long enough to see it repeat: an 1800-rated player can burn fifteen minutes at the board because he cannot recall the twelfth move of a Semi-Slav line, yet plays twenty moves of a London at machine speed. The price of theory has become a burden, and avoiding it is a rational strategy.

Black ends up in a strange, passive position. He is not facing a weaker opponent; he is facing an opponent who does not play by the book. To win, he needs a plan against something outside mainstream theory. That is precisely the market gap this kind of course targets.

Eight systems, one promise, and the missing numbers

Lilov's course description lists eight branches: London, Colle, Torre, Trompowsky, Catalan, Blackmar-Diemer, Richter-Veresov, plus the avoided main lines of the Slav, Semi-Slav, QGA and orthodox QGD. For each branch, Lilov promises to show a suitable plan for Black.

Technically, the approach is sound. The systems above are not theoretically dangerous — they are far less critical than 2.c4. But at club level they are genuinely annoying, because Black usually has no prepared plan. The London does not threaten through deep lines; it threatens through stability. The Colle does not win through theory; it wins through small central levers Black fails to notice.

What is missing from the entire description is data. Not one ACPL figure. No win-draw-loss rate. No sample game offered to prove the plan works. No engine match rate. An opening course may not need those numbers — but a product bold enough to call those systems "extremely dangerous" must survive the test of data verification.

It took me three months to learn that a beautiful chart is worth less than a correct process.

Six videos for eight systems, plus four avoided main lines, means on average less than one video per topic. That is breadth over depth. For a club player wanting a quick foothold, that is reasonable. For someone building a durable repertoire, it is a starting point, not an endpoint.

Correlation is not causation

There is a temptation I once fell into. In 2026 I predicted Germany would defend their World Cup title based on possession share and passing accuracy. They went out in the group stage. My data was not wrong — I chose the wrong metric. High possession is a marker of a strong team in the past, not a cause of victory in the future.

The same applies here. Players dodging 2.c4 is an observable correlation. Those systems being dangerous is an inference, not a measurement. The description presents the second as though it were the first. The phrase "not very ambitious", applied to system players, deserves attention too: it is both a mildly pejorative editorial judgement and a marketing line aimed straight at the very audience the product wants to sell to.

But the biggest problem sits off the board. The headline calls this an interview with Timur Turlov — a figure better known for finance and chess sponsorship. His name appears in none of the body's information points. Conversely, Valeri Lilov's name appears nowhere in the headline. Two subjects, one document. This is a first-order reliability failure, and it matters more than any argument over whether the London is dangerous.

The next checkpoint

No model is needed to see that courses like this will keep existing. The opening-content market is saturated, and competitive advantage is shifting from raw analysis toward curation, branding and distribution. An IM coach can make a good living selling the gaps mainstream theory leaves behind.

What I want to track next cycle is not the Black plan against the London. It is whether readers start checking the name in the headline before buying a course. Data is a mirror; but only those who dare face themselves will see the truth. A game ends only when both sides agree the position is clear. Until then, any headline can be a move written with the wrong notation.