King's Indian Defence, the Bayonet and 9...a5: A Documentary-Style Audit of an Opening DVD's Claims

Two screens were open on my laptop at a club in Pune on a Wednesday evening. On one side, the board — 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.0-0 Nc6 8.d5 Ne7 9.b4 — and on the other, live Stockfish lines. The nineteen-year-old across from me spent 22 minutes on a position his opponent had prepared at home from a video series: 9...a5. The result was a mistake, but not in the move. It was in the absence of a map. The second screen was not a distraction; it was where the story learned to speak. What looked like a chess broadcast was quietly becoming a sports documentary — and the subject of that documentary was a DVD whose entire product description contained not one number.

This column is an audit of that imbalance. Having spent years watching club-level chess on both the board and the screen, I keep meeting the same pattern: opening products make their case in narrative and never send the evidence. The Svitlana's Smart Moves DVD, as described, recommends a practical route for Black in the King's Indian Defence's sharpest branch, the Mar del Plata variation. The question is not whether 9...a5 is playable. It is what kind of trust a product is asking for when it sells itself as 'strategy over memorisation' without a single engine evaluation, game count or results percentage.

The Mar del Plata takes its name from the Argentine city where the system was showcased in the 2026 tournament. Its basic economy is honest: Black concedes central space, strikes with ...e5, then rolls the kingside pawns with ...f5 and ...g5-g4. White has a flood of his own on the queenside — c4-c5 and b4-b5. Kings sit on opposite wings, so both players attack and defend at the same time.

White's modern main weapon is the Bayonet Attack, 9.b4. It takes queenside space, prepares b5 and c5, and tries to slow Black's kingside plan. Black's established main line has been 9...Nh5, which heads for ...f5 and ...Nf4 and drags the game into a forcing, calculation-heavy direction. That is where the product's story begins.

The DVD's argument, as presented, is a clean five-step syllogism: the Mar del Plata produces rich strategic positions; computers do not understand them; therefore human-oriented players benefit; but the fashionable Bayonet disrupts that comfort; and the main line 9...Nh5 collapses back into forced, computer-friendly lines. So take 9...a5 and stay in the human domain. The logic is internally coherent and it genuinely captures a real tension in King's Indian practice — 'engine-checkable forcing lines' versus 'strategically opaque manoeuvring'. The problem is not the argument. It is the evidence.

The description offers no engine evaluation, no ACPL, no game count, no database frequency, no results split, and no named model game. That is an unusually bare space for a commercial opening product, in a category where competitors routinely ship database context and engine assessments. When the claim is that a position is 'objectively equal, but dangerous for White', that pairing is a recognised marketing device: the first sentence soothes the buyer's fear that the line is refuted, the second inflates his hope of scoring chances. Both can be true at once — but neither is supported here.

The weakest technical link is the one being sold hardest: 'computers cannot handle these positions'. That is 2026-2026 thinking. Since NNUE-based evaluation arrived in 2026, engines handle closed, manoeuvring, King's Indian-type positions far better than the old trope assumes. The description also contradicts itself: it says computers are weak here, then concedes that after 9...Nh5 'computer analysis becomes important again' — implicitly accepting that engine mastery is the norm and that 9...a5 is the escape route from it. That is an honest admission, and it undercuts the headline pitch.

The more practical issue for a buyer is scope. In the Mar del Plata, White retains fully independent and still popular options on move nine — 9.Ne1 and 9.Nd2 — plus earlier deviations such as 8.Be3 and 8.Re1. This product solves exactly one node, 9.b4, and is not a complete Mar del Plata answer. That is not a flaw in the product; it is a flaw in how it can be perceived. 'The antidote to the Bayonet' and 'a Mar del Plata repertoire' are different objects, and the series branding flattens them into one. A player who buys it believing his work is done will sit defenceless against 9.Ne1 at the next tournament. This is not a repertoire; it is a repair manual for one junction.

The third layer is sourcing. The 'Olympiad' in the title is decorative — no edition, year, round or player is named. In principle, using Olympiad games as model material is sound: the biennial team event fields roughly 180-190 national teams, the stakes are high and the game scores are public. But there is a selection bias. In team matches a draw is often sufficient, so play can be result-oriented and less critical than at a Candidates or a pure round-robin. A repertoire built mostly on team-event games should be cross-checked against individual elite events.

The fourth layer is the market. The product occupies a narrow, defensible niche: it does not compete with complete King's Indian repertoires, it complements them at one high-traffic node. But format competition is the structural threat. Static DVD and video-series products are being displaced by subscription-based, continuously updated, database-linked repertoires. A single-line product has a short relevance half-life, and the irony is that a published antidote invites counter-preparation — once 9...a5 is widely known, White can prepare against it specifically, and the 'few concrete lines' advantage erodes.

Fifth, small but expensive: the terminology. The King's Indian Attack is a distinct system — 1.Nf3, 2.g3, 3.Bg2, d3. The moves described belong to the King's Indian Defence. In a search-driven market this is doubly costly: it attracts the wrong buyer and hides the product from the right one.

Now the part least said, and the real test of this product. The pitch is 'few concrete lines, strategy rather than memorisation'. But the same description notes that Mar del Plata positions demand long-term planning and tactical sharpness. Both statements can be true, and yet for the buyer the implication runs backwards: positions with no forcing sequence do not demand less calculation, they demand more judgement, and judgement is the most expensive commodity under a ticking clock. Forcing lines show a weaker player the road; open strategic positions ask him whether there is one. This product may promise ease to its most likely customer — the ambitious club player between 1600 and 2026 — and deliver difficulty. In my experience, opening-content backlash starts here, not with a refuted move.

The reverse is equally true, and it is where the DVD's genuine value sits. 9...a5 is not a novelty; it has appeared in practice for years. So what is being sold? Explanation. Consolidation. A map a player can hold in his head. And that is exactly where the market is thin: in a flood of memorisation-heavy repertoires, the player who reasons rather than recalls is a real and underserved segment. Every arena is a track, even when the competitors are sitting still — and this one is a track of strategy, not memory. Follow the price of opening content far enough and you find the culture in the paperwork: which segment pays for which kind of help is clearer in a product catalogue than in any review.

A documentary writer trusts the pause more than the highlight reel. The pause this product deserves is this: it is a low-stakes, technically plausible, deliberately narrow announcement — no integrity crisis, no fraud, no governance dispute. For players committed to the King's Indian who face 9.b4 regularly, a consolidated explanation of a practical alternative has real reference value. But only if the buyer reads it against a live database and a current engine rather than accepting the product description as fact.

Which leaves the larger question. The next Olympiad will arrive, 9...a5 will appear in some game, a clip will travel, and the line will be repriced within weeks. The question is not whether a book or DVD was right. It is where the Indian club player's next preparation update comes from: a shelf of discs, or the stream he is watching at two in the morning. On the day that answer becomes clear, opening products will have to write their case in numbers rather than narrative.