The ‘Antidote’ 9...a5 to the Bayonet Attack: A DVD’s Claims, the Title-Body Mismatch, and What Blockchain Could Teach

Some headlines are like a steel cupboard suddenly opening: a smell comes out, but you cannot tell which door opened. The ‘article’ before us is exactly that. The title says — ‘Samarkand Round 10 (Women): Kazakhstan close the gap’. It sounds like a report from a women’s tournament in Uzbekistan. Yet none of the eleven information points below stands beside that title. There is no Samarkand, no Kazakhstan, no female player, no tournament result. Instead, all eleven points describe a King’s Indian Defense DVD claiming that 9...a5 is the best antidote against the Bayonet Attack. Let us unpack the structure. The King’s Indian Defense (KID) is a hypermodern opening: 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6. White builds a large centre; Black plans a flank counterattack. In the Mar del Plata variation, Black typically commits to ...Nc6, ...Ne7 and ...f5 on the kingside. White then advances on the queenside with c5–b4. That sharp system is the Bayonet Attack, starting from 9.b4. The traditional main line against it is 9...Nh5. But the DVD before us proposes 9...a5. One thing must be made clear: 9...a5 is not a novelty. It is a known, established line in the major databases. The DVD calls it an ‘antidote’ — as if one magic move stops White’s whole attack. Theoretically, it is not an antidote but a secondary, positional alternative. For players who do not want to fight the forcing main line 9...Nh5, 9...a5 can be a practical option. But a practical option is not the same as a dangerous antidote. According to the product’s own description, 9...a5 leads to ‘very few concrete lines’ and the focus is on ‘strategy, not tactics’. This is a manoeuvring approach that avoids a memory battle and invites a battle of understanding. It sounds attractive. For the amateur, the message is powerful: “I do not have to memorise thousands of lines; I only need to understand plans.” From a market perspective, that is smart positioning. However, the DVD’s claim that ‘computers often do not know how to handle these positions’ belongs to an older era. After AlphaZero in 2026 and the rise of NNUE-based engines, that sentence has aged badly. Modern Stockfish and Leela handle the Mar del Plata structures reliably. Any text still using the ‘computers do not understand’ framing is likely marketing from before 2026. The DVD may be an old catalogue item or a reissue, not a fresh production. The most serious issue is the absence of evidence. The claim ‘objectively chances are equal’ comes with no engine line, no database win-draw-loss statistics, and not even one reference game. There is no engine match rate, no average centipawn loss (ACPL), no depth of analysis. The reader is left with a promise, which is unacceptable for any serious chess analysis. That void gives birth to another risk: self-referential sourcing. The DVD itself says its line is good, says it is hard to handle, and crowns itself an ‘antidote’. Source and article become one. Independent confirmation is absent. Self-promotion is legitimate in business, but as a journalistic foundation it is very weak. So a question emerges: how did a news feed carry this material as ‘news’? The answer is probably a feed error and a title-body mismatch — exactly what we are seeing now. This is where the blockchain lesson appears. If every claim — ‘9...a5 is an antidote’, ‘chances are equal’, ‘computers do not know’ — were timestamped on an immutable ledger, anyone could later open the record and see who made the claim, when, on which engine version, and against which database. Blockchain here would trade not in money but in truth. In the commercial world of opening theory, that could be a durable solution. The market context tells another story. The physical DVD era is nearly over. Opening courses now live on interactive platforms like Chessable, on Chess.com video courses, and in streamer-led content. From that angle, a ‘DVD product’ is already a museum piece. But there is another side: amateur demand for ‘anti-memorisation’, ‘thinking openings’ is permanent. Club players are exhausted by the engine-driven theory arms race, and that gap is exactly what these courses fill. The risk matrix is clear. Sport-level risk is almost zero — no player career, no tournament, no money, no governance. But information-integrity risk is very high. The title-body mismatch is not merely an editing slip; it questions the reliability of the entire source. If a newsroom passes a wrong feed, thousands of readers walk away with wrong information. Finally, the contrarian angle. Is 9...a5 really ‘dangerous’ for White? It depends on preparation. A White player who has not studied the line is playing in the dark; for them it is uncomfortable. But if White knows the same theory — and that is not difficult, since the line is in public databases — then 9...a5 loses its sting. What remains is a quiet, equal position. The DVD’s language is then just ornamental marketing. Looking at the wider picture, the KID is no longer a regular weapon of top grandmasters. It has become a battleground for club players and improvers. As elite chess moves more toward ...d5 and Grünfeld setups, the Mar del Plata remains a ‘thinking player’s opening’. The DVD’s market target is therefore clear: not elite preparation, but the amateur world. To attach that world to a women’s tournament headline is another story altogether. In short, the article-like object before us has low intrinsic news value but high instructive value. A DVD may call its line an antidote; a feed may attach the wrong headline; but the reader’s only touchstone is independent verification. Without that, chess news loses both its board and its room. And the message for the future? As the opening-theory market migrates to platforms, trust in information must also migrate to a transparent, immutable network. Blockchain can be that network, where every chess claim, every tournament result and every headline is sealed in a hashed record. If there really is a Samarkand women’s tournament, and if Kazakhstan really did close the gap, that story must stand beside its own headline before we call it news. The steel cupboard still holds the echo of a crowd that never came. Forty squares, no crowd; the board remembers what the terraces forgot. If blockchain is the ledger of that memory, then every move — an old DVD or a Samarkand round — will be accounted for, and that will be truth’s first victory.