The Silence of Move Nine: 9...a5 Against the King's Indian Bayonet and an Unfinished Engine-Era Claim

An old DVD case lies on my desk in Khulna. A hairline crack runs across the plastic cover, and over it sits the brown ring of a tea cup—much like the ring that once dried over the black queen's square on Niaz Murshed's 2026 norm sheet, locked in a steel cupboard in the BCF hall at Purana Paltan three decades ago. The cover shows a half-familiar King's Indian Defence position: Black's pawn on e5, White's pawn on b4. Inside there is no name, no rating, no score. Only a claim—that against the Bayonet Attack Black's most usable reply is supposedly 9...a5, and that modern computers supposedly cannot handle these complex strategic positions. Looking through that tea ring, I think: the steel cupboard still holds the echo of a crowd that never came. The King's Indian Defence is an opening in which Black concedes the centre from the start, then lunges at White's king to win it back. The setup 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 fixes the character of the game. White builds a big centre with e4; Black quietly arranges...d6,...e5 and...Nc6, trading space for the promise of attack. The Classical branch is sharper still:...e5, then...Nc6, then...Ne7 and...f5—this plan is the Mar del Plata Variation, named for that Argentine seaside city where, for a time, the strongest players in the world tore each other apart in this very line. Inside the Mar del Plata sits a White weapon called the Bayonet Attack—9.b4 on move nine. White pushes the pawn beside his queen, threatens to occupy c5, breaks Black's natural...c5, and slows Black's build-up against the king. This is no mere sideline; in the years I have watched, the move became highly fashionable, especially in the engine era, because White can arrive prepared and drag Black into a complex position where finding the right move is hard. Against this Bayonet, Black's principal reply is 9...Nh5. From there the play turns forcing—move after move is imposed, and both players need engine help or the game ends in one stroke. But the DVD I am describing proposes a different road at exactly this point: 9...a5. Black's queen's rook pawn advances, questions White's b4 pawn, reduces the pressure on the centre, and pulls the game off the forcing track onto a slower, strategic path more suited to human understanding. The product's claim: here you do not need to win, you need to survive. That very claim, however, is the DVD's heaviest and weakest brick. 'Computers don't understand these complex strategic positions' was true once, when engines were crude calculators seeing only material gain and a few forcing lines. But today's neural-network engines—Stockfish's NNUE, or Leela Chess Zero—do not merely understand strategic positions; they learn most from unequal, slow, seemingly 'human' positions like those of the King's Indian. In positions where a human thinks 'there is no clear plan', today's engine quietly produces the best move. So the claim is no longer demonstrated fact—it is a marketing device flattering the buyer: you are human, you have understanding; the engine does not. And here an internal quarrel hides inside the DVD. The same author who says computers cannot handle complex strategic positions also concedes that after the main line 9...Nh5, computer analysis matters again. The two statements cannot stand together. What is actually happening is simpler: the 9...a5 lines are less forcing, hence less engine-decisive. This is not about engine incapacity—it is about human practical difficulty. Change one word and the claim becomes far more honest. Elsewhere the text cuts off its own feet. On one hand it says that after 9...a5 objectively the chances are equal; on the other it says the position is dangerous for White—if Black knows what to do. Equal and dangerous sound strange together. Read closely, objective evaluation and practical discomfort have been muddled. On the engine's ledger the result is balanced, but to the unprepared White player this position is uncomfortable. Preparation asymmetry is the real idea, and about that I have no doubt. The DVD's greatest weakness is its lack of evidence. There is no sample game, no illustrative variation, no database statistic, no ACPL, no win-draw-loss count. Whether 9...a5 is genuinely equal, or a slightly inferior sideline, cannot be checked from this source at all. A claim assembled from a few sentences has no numbers inside it, no year, no board. Someone who has spent four decades covering the follow-up pages knows: a claim without evidence is advertising. Still, the DVD is not to be thrown away. 9...a5 is a workable idea—for a Black player steeped in Bayonet preparation, the move is a weapon of unpreparedness. It is no new discovery; it is a known alternative, here dressed as a practical tool. The DVD's real job, then, is not engine science—it is finding the gap in rote preparation. Last year I sat for hours watching juniors, noting not moves but temperament; those who win by memory have trembling hands the moment they leave preparation. This DVD is for those trembling hands. The DVD's true significance lies not in its technical claim but in its market. 'Don't lean on the engine, think for yourself' is an old sales archetype. The older, cautious, memorisation-averse improver—who does not want to drown in a jungle of engine numbers—is its core buyer. And here Bangladesh's story joins in. We have no home norm tournaments, the federation's annual grant is so small that players survive on private study, and with the 2026 school-chess pipeline shut in a day, the new generation is left with foreign DVDs and online courses. Knowledge that should have been born in our own academies must be imported. So this DVD does not merely teach 9...a5; it conceals a larger truth—our chess infrastructure is so money-dry that even reliable preparation must be brought in from outside. Since 2026 Bangladesh has produced no new grandmaster; that is not a talent drought but a sponsorship-and-opportunity drought. Our chess still lives inside club rooms, academies and online platforms—Manon Reja Neer's 2026 national title, Niaz Murshed's 2026 title at 59, Rani Hamid's enduring Olympiad play—all stories of that inner room. But what sits on the shelves outside the room? A cracked plastic cover, and a dried tea ring on top. In Purana Paltan, even the rust learned to keep silent, because there is no one inside. One thing the DVD does capture correctly: the direct link between which opening is fashionable at the top and market demand. When the Bayonet is in fashion, the antidote business follows. This is the normal rhythm of opening theory—a White weapon becomes popular, Black builds an answer, White hunts a new road. No new star is born in this oscillation, no new country rises in chess; only the market for DVDs and courses stays warm. In a country like ours this market means more dependence—we buy someone else's preparation and play with it, we do not build our own. So for me the product's real information value is not in its technical claim but in its manner of speaking. 'Computers don't understand' is a dead sentence today, yet the feeling behind it survives: ordinary people are tired of the engine's inhuman precision, and they seek a story in which human judgement matters again. The DVD sells that story. My job is not to believe the story; my job is to look at the board—how much of the move is true, how much is advertising. And one more thing must not be forgotten. 9...a5 comforts Black only when White is unprepared. If a prepared White has seen this position before, the pressure falls on Black—because then Black himself, walking the strategic path, becomes the weaker side. This is the eternal risk of an antidote: it is not a cure, it is a surprise weapon. You can surprise once, not every time. So making this DVD the pillar of a main repertoire would be wrong; it is better treated as a side weapon, one drawn occasionally to break an opponent's rhythm. Whoever abandons the main line 9...Nh5 out of love for this sideline will probably suffer—because it is the forcing education of the main line that gives real strength. Whether 9...a5 survives will be decided by modern engines—by what Leela or NNUE evaluates deep in the line. As long as the Bayonet is played at the top, demand for the antidote will remain. But the real question stays in our own room: will anything we built ourselves ever sit beside this cracked cover? Forty squares, no crowd: the board remembers what the terraces forgot.