A King's Indian Inside a ChessMom Cover: Is 9...a5 an Honest Answer to the Bayonet?

The clock in the Purana Paltan chess hall read 2:40 in the afternoon. On the board stood White's ninth move, 9.b4 — the Bayonet Attack. The teenager playing Black opened his prep file and found nearly all of it packed with 9...Nh5 branches: a green engine arrow on every line, a forced six- or seven-move path inside each one. He thought for ten minutes, lifted the knight to h5, and six moves later his preparation was spent. He lost that game on the clock, the game he had spent three months memorising at home. Sitting in that hall, I decided that the honest advertisement for any chess product is this exact scene.

A product description reached me recently along those lines: a DVD titled "ChessMom returns: Supporting mothers on and off the board." The title suggests a social story about mothers, or a community project that lives off the board. Inside, the material is something else: a King's Indian Defence repertoire DVD that recommends 9...a5 against White's Bayonet Attack. That gap between title and content matters from the first page. A product that cannot state its own identity clearly deserves separate scrutiny for its tactical claims. The page nobody commissioned became the only honest record — that is what my own 2026 Facebook page taught me.

In the Classical King's Indian, 7...Nc6 produces the Mar del Plata Variation, one of the most double-edged attacks in chess history. White plays on the kingside, Black on the queenside. White's 9.b4, the so-called Bayonet Attack, is a modern form of that plan: block Black's ...b5 break early, then build pressure in the centre and against the king. The main reply is 9...Nh5. It opens the position, multiplies the move count, and raises the calculation load. In the engine era that means something plain: more lines to memorise, more traps, less understanding.

The DVD recommends 9...a5. This is no new discovery; it is an established sideline in the King's Indian. The logic is simple: dodge the forcing complexity of ...Nh5, take space on the queenside, aim later for ...a4 or ...b5 to shove White's queenside back. Play then runs through very few concrete lines, and decisions rest on plans. In 2026, when the league stopped and my coaching stipend fell to zero, I divided the board into sixteen zones and counted piece influence in each. In this line Black often controls nine of sixteen zones while White holds five or six. Numbers describe space where adjectives cannot — the forty-four games in Batumi taught me more than a season of highlights.

9...a5 is essentially a trade of memory for understanding: you give up the forcing lines and accept a long-term strategic debt. For a player worn down by memorising engine lines, that trade looks attractive. At club-to-IM level this is the real problem: preparation time is finite and the main line is not. The DVD's sales pitch lives exactly there — relief from the burden of the main line.

The price sits beside the relief. The DVD claims that "objectively chances are equal," and that if Black knows the plans, "things might quickly become dangerous for White." That sentence blends an objective evaluation with a practical one. Experience says 9...a5 has practical value, while the objective claim — equal at worst — is unproven. The product carries no engine evaluation, no ACPL, no sample games, no database statistics. For a repertoire product that is a large hole. It mirrors our federation's ledger: roughly Tk 11 lakh in annual government support, five grandmasters, and no new one since 2026. Zeros here are not numbers; they are decisions.

One claim unsettles more: "computers often do not know how to handle the arising complex strategic positions." In the engine era that sentence is close to dead. Modern engines handle closed King's Indian positions well. It is sales ornament, not tactical truth. When a product tells a story about the engine's ignorance, it points at the weak spot in its own case. At sixty-four I still build the model before I trust the eye; here the model is simple — there is none.

The idea of 9...a5 against the Bayonet repeats an old cycle. When the main line fills the databases so heavily that a club player cannot hold it, "anti-computer" or "practical antidote" sidelines return to market. The DVD format itself signals that cycle: in the age of streaming and subscription courses, a DVD is a legacy channel. The product is probably not new theory but new packaging around old theory. Forty-four games in Batumi taught me more than a season of highlights — highlights show who won, lines show why.

Here lies the real blind spot. The danger in 9...a5 is not the line's weakness; it is White's counter-preparation once the line becomes popular. While White does not expect the move, Black saves time. Once the choice shows up in databases, White can open the centre instead of merely blocking ...b5, and Black's slow strategic plan runs short of time. The benefit of a low-memorisation line evaporates if it becomes the next thing to memorise. Our Premier League knows this picture: board one often needs an Indian guest grandmaster, while the domestic pipeline runs dry.

The title gap is more than marketing noise. "Mothers, on and off the board" likely bolts a diversity and community layer onto a purely technical product. Rani Hamid's late Olympiad wins recall that women's chess in Bangladesh has its own path; welding that path onto a King's Indian DVD advertisement damages both. In 2026 Manon Reja Neer, at fourteen, became national champion; in 2026 Niaz Murshed won the national title again at fifty-nine — two celebration pictures that together read as an indictment of succession. A federation that cannot replace its best generation may find such a product a "solution." It is not a solution; it is a way to pass the time.

What does a King's Indian player take from this DVD? Three things. First, 9...a5 can be used as a known sideline, but conditionally — checked against your own engine and a current database, never on trust. Second, the main-line versus sideline trade-off works as a teaching case: where memorisation ends and understanding begins. Third, measure the gap between a product's claim and its evidence yourself; that is the real protection for your money.

Empty stadiums are not silence; they are a tactical confession. A DVD title is likewise not mere words; it is a confession of its own unfinished story. The question now: in next season's Premier League entry list, will we see another DVD-dependent generation, or a coach who teaches a teenager to count the board's sixteen zones instead of scaring him away from 9...Nh5?