Hello chess friends and welcome to a new opening series, welcome to our studies of the 150 attack. With this attack you can destroy the Pirc or Modern defense easily.The setup f2–f3, Be3 and Qd2 is commonly used against the King’s Indian Defence and Dragon Sicilian, and can also be used against the Pirc; indeed, this system is as old as the Pirc itself.
The system 4.f3 was introduced by Argentine players c. 1930 and again in 1950. It was never considered dangerous for Black because of 4.f3 Bg7 5.Be3 c6 6.Qd2 b5. It received a severe blow in about 1985, when Gennady Zaichik showed that Black could castle anyway and play a dangerous gambit with 5…0-0 6.Qd2 e5.
The Argentines feared the sally …Ng4, though some British players (especially Mark Hebden, Paul Motwani, Gary Lane, later also Michael Adams) came to realise that this was mainly dangerous for Black, therefore playing Be3 and Qd2 in all sorts of move orders, whilst omitting f2–f3. They called this the 150 Attack, because players of this strength (ELO 1800) can easily play this position and get strong play without any theory.[10]
The original Argentine idea probably is only viable after 4.Be3 Bg7 5.Qd2 0-0 6.0-0-0 c6 (or Nc6) 7.f3 b5 8.h4. Black usually does not castle though and prefers 5…c6 or even 4…c6. The question of whether and when to insert Nf3 remains unclear.
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PGN:
[Event “Rated Blitz game”]
[Site “https://lichess.org/uhOKDKa5“]
[Date “2022.10.15”]
[White “jozarov”]
[Black “MasterTol”]
[Result “1-0”]
[UTCDate “2022.10.15”]
[UTCTime “04:21:00”]
[WhiteElo “2398”]
[BlackElo “2430”]
[WhiteRatingDiff “+6”]
[BlackRatingDiff “-7”]
[BlackTitle “CM”]
[Variant “Standard”]
[TimeControl “180+0”]
[ECO “B08”]
[Opening “Pirc Defense: Classical Variation”]
[Termination “Normal”]
[Annotator “lichess.org”]
1. d4 Nf6 2. Nf3 g6 3. Nc3 Bg7 4. e4 d6 { B08 Pirc Defense: Classical Variation } 5. Be3 a6 6. Bd3 b5 7. Qd2 Bb7 8. Bh6 Bxh6 9. Qxh6 b4 10. Ne2 Nxe4?! { (0.39 → 1.23) Inaccuracy. Bxe4 was best. } (10… Bxe4 11. Bxe4 Nxe4 12. Qg7 Rf8 13. Qxh7 Nd7 14. Qh6 Ndf6 15. O-O Qd7 16. Rae1 Nd5 17. Qc1) 11. Qg7 Rf8? { (1.12 → 2.34) Mistake. Kd7 was best. } (11… Kd7 12. Qxf7) 12. Bxe4 Bxe4 13. Ng5 Bxg2 14. Rg1 Kd7?? { (2.30 → 5.29) Blunder. Bd5 was best. } (14… Bd5 15. Nf4) 15. Rxg2 Nc6?! { (5.23 → 7.16) Inaccuracy. Qe8 was best. } (15… Qe8 16. Qxh7 Kc8 17. Qh3+ Nd7 18. a3 bxa3 19. Qxa3 Nb6 20. Qf3 a5 21. c4 e6 22. Rg3) 16. Nxh7 Rg8 17. Qxf7 Nxd4 18. Nxd4 Kc8 19. O-O-O Kb7 20. Qd5+ { Black resigns. } 1-0
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