9...a5 Against the Bayonet: ChessMom’s DVD and the Title That Never Reaches the Board

When 9.b4 hits the board against the King’s Indian Defense, every Black player faces a test. The Bayonet Attack is a quiet queenside spear aimed at disturbing Black’s...e5 plans. In 2026, I tagged all 169 World Cup goals and learned that patterns sort themselves once you start tagging. Opening preparation is the same: tag the move, watch the purpose emerge. This time the tagged item is an opening-repertoire DVD that recommends 9...a5 against the Bayonet. The title says “ChessMom — supporting mothers on and off the board.” The content says King’s Indian Defense, Mar del Plata, 9...a5. The mismatch is my first spreadsheet entry. All 14 information points in the original text carry no source attribution. This is a single-source, commercially motivated product introduction, so I logged those conditions before reading a single claim. The DVD’s pitch is coherent: instead of the forcing main line 9...Nh5, which demands heavy memory and computer preparation, Black plays 9...a5, a strategic move that holds back b4-b5 and offers sound positions with few concrete lines. That is a practical, low-memorization, high-understanding repertoire for club-to-IM players. But the packaging claims “objectively chances are equal” and “White may quickly be in danger” without a single engine evaluation, ACPL figure, database statistic, or sample game. It also says “computers often do not know how to handle complex strategic positions,” which is marketing rhetoric in the engine era — modern engines handle closed positions well. My own board discipline comes from Chennai 2026, where I covered one board for eleven reports: 16-year-old D. Gukesh of India-2. From the 2026 FIDE Online Olympiad, I kept a conditions log — platform, time control, latency, hour — because readers trust numbers only when they know where the numbers come from. A DVD should get the same treatment. It is a legacy distribution channel competing with Chessable and streaming courses. The 9...a5 line is not a novelty; it is a known sideline repackaged as an antidote — a recurring pattern as main lines become over-analyzed. Here is my structural grief: Bangladesh has five grandmasters — Niaz Murshed (2026), Ziaur Rahman (2026), Reefat Bin-Sattar (2026), Abdullah Al Rakib (2026), Enamul Hossain Razib (2026) — and no new GM for over sixteen years. Ziaur Rahman died at the board in July 2026, a 2570-rated champion who still relied on prize money. The federation’s annual government support is roughly Tk 11 lakh, school chess collapsed in 2026, and a DVD like this is inaccessible to most club players in Dhaka. The gap is not talent; it is pipeline and sponsorship. So the verdict: the DVD is a usable practical sideline for KID players, but its core claims are unverified marketing. Run the line through an engine, check TWIC and ChessBase for games, and treat the title’s “mothers” framing as disconnected from the technical content. What would settle this is a real, cold tournament test of 9...a5. Until that game appears, the board remains a question with no pieces.