[Event "Massakamp Holland-Rijnland"] [Site "?"] [Date "1929.??.??"] [Round "?"] [White "Muhlthaup, H."] [Black "Weenink, H."] [Result "0-1"] [ECO "D36"] [Annotator "MJDonnelly"] [PlyCount "46"] [SourceVersionDate "2025.05.17"] {[%evp 0,46,18,14,18,6,6,6,6,-14,8,13,29,25,19,22,46,39,44,36,41,42,53,51,59,46,63,61,56,62,64,54,39,41,52,33,-21,-53,-73,-194,-72,-247,-247,-235,-171,-170,-184,-370,-335]} 1. d4 Nf6 2. c4 e6 {Even though intending an early d5, and rather than via 1.d4 d5, this move order is popular for Black nowadays. It waits to see what White will play and if 3.Nf3 occurs the Queens Gambit Exchange variation if thought to be less difficult than when White can play Nge2.} 3. Nc3 d5 4. Bg5 Nbd7 5. e3 c6 6. cxd5 exd5 7. Bd3 (7. Qc2 {is more flexible now that an early Nbd7 has been played and the lines where Black develops the bishop to f5, diectly or with the aid of a prelininary g6, are largely avoided.}) 7... Be7 8. Nf3 {The older line where White aims for a minority attack with b4-5 whilst} (8. Nge2 {tends to lead to central play with f3 and e4.}) 8... O-O 9. Qc2 Re8 10. O-O {Played in the vast majority of games but} (10. g4 $5 {is a relative rarity with shock value when play may continue} Nf8 11. Bxf6 Bxf6 12. h3 (12. Rg1 Bg5 13. O-O-O Qe7 14. h4 Bxe3+ 15. fxe3 Qxe3+ 16. Nd2 Qxd4 {Wood(J)-Donnelly, NCCU Individual Junior Ch 1969.}) 12... c5 13. O-O-O cxd4 14. exd4 Be6 {Milev-Aloni, Olympiad Final Amsterdam 1954. Black eventually prevailed in both games.}) 10... Nf8 {A well examined position in which the knight move is the standard retreat defending h7 and aiming to establish equality by exchanges with a timely Ne4. The richness of Chess is shown by the many possible White continuations from this position.} 11. a3 {Direct but not the most popular move to initiate the minority attack. More frequent is} (11. Rab1 a5 12. a3 {as preferred by Kramnik whilst}) (11. h3 {taking time out to prevent B or N to g4 is Karpov's frequent choice.}) (11. Bxf6 Bxf6 12. b4 {promotes a rapid minority attack at the cost of the two bishops used by Korchnoi and TImman}) ({but} 11. Rad1 {is not very effective due to} Bg4) (11. Ne5 {although played by several GMs can be met by} Ng4 12. Bxe7 Qxe7 13. Nxg4 Bxg4 14. Rfe1 (14. Rae1 {is Ibragimov's favourite.}) (14. h3 Bd7 15. Ne2 Qg5 16. Kh2 Ng6 17. Ng3 h5 {Schwarf-Klapp, Ger-ch V03 GER e-mail 2009} (17... Re7 {is also fine for Black who soon won after White's premature attacking line} 18. f4 Qh4 19. f5 Rxe3 {Metcalfe-Donnelly, Teesside League 1968 which continued} 20. Ne2 Nf8 21. g3 ({the original intention of} 21. f6 {fails to} Bxh3) 21... Qf6 22. Rf4 Rae8 23. Raf1 Qe7 24. Ng1 f6 $17)) 14... Bh5 15. Rab1 {combines queens-side and central play as in Vidit-Howell, Online Inv Chess.com INT Blitz 2021.}) (11. Rae1 {is a line favoured by Frank Marshall aiming to open the game with e4 as soon a possible.} Ne4 12. Bxe7 Qxe7 13. Bxe4 ({If} 13. Nd2 Bf5 {is comfortable for Black} 14. Bxe4 Bxe4 15. Ncxe4 dxe4 16. Nc4 Rad8 17. f4 exf3 18. gxf3 c5 {Stephenson-Donnelly, Match game Middlesbrough 1970.}) 13... dxe4 14. Nd2 b6 (14... f5 15. f3 exf3 16. Nxf3 Be6 17. e4 fxe4 18. Rxe4 Rad8 19. Re5 h6 20. Ne4 Qb4 21. a3 Qc4 22. Qf2 Bf7 23. b3 Qxb3 24. Nfd2 Qa2 25. Nc3 {Marshall-Rubinstein, Moscow 1925.}) 15. Qa4 f5 16. f3 exf3 17. Nxf3 Bb7 (17... Bd7 {is still better for White after} 18. Ne5 c5 19. Nxd7 Qxd7 20. dxc5 bxc5 21. Qc4+ $16 {Stephenson-Donnelly, Teesside Open 1970.}) 18. Ne5 Qe6 19. Qc2 Bc8 20. e4 Qd6 21. Rd1 Ne6 22. Qb3 fxe4 23. Rf7 a5 24. Nxe4 {and Black resigned in the classic game Botvinnik-Robatsch, Amsterdam 1966.}) 11... Ng4 {Well playable but not the most common. Black may also choose from a range of options such as} (11... a5) ({and} 11... Ne4) ({or} 11... Ng6) 12. Bf4 {retains peices but not a significant advantage. As d7 is not occupied by a knight the common trap, when the bishop is on f4, where Black allows Nxd5 and Bc7 losing the queen, is not feasible.} (12. Bxe7 {is the usual move when representative minority attack positions arise after} Qxe7 (12... Rxe7 13. h3 Nf6 14. b4 Bd7 15. b5 Qc8 16. bxc6 bxc6 17. Ne5 Bxh3 18. gxh3 Qxh3 19. Bf5 {Quaranta-Alburno, Graticolato op Santa di Sala 2000.}) 13. b4 a6 14. Rab1 g6 15. a4 Nh6 16. b5 axb5 17. axb5 Bf5 {Tazlar-Hula, CZE-T2B Czech REpublic 2015.}) 12... Bd6 13. Bxd6 Qxd6 14. h3 Nf6 15. b4 (15. Rac1 Be6 16. b4 a6) 15... Ng6 {Weenink characteristically aims pieces towards the White king whilst White slowly proceeds with the queens-side attack. Other moves played in this position appear to just wait and see how White will proceed on the queen's-side.} (15... a6 {Freis Nielsen-Bank Friis, DEN-ch 1987.}) (15... h6 {Hasinski-Hasanov, Rewal op B 2012.}) (15... b6 {Hurme-Heino, Naantali Summer op 2015.}) 16. Na4 $6 {This only appears fine but its not strightforward to carry out a minority attack as timing is critical.} (16. Rfc1 Be6 17. Rab1 {is a more potent way,}) 16... Ne4 {central action defuses the queen's-side play.} 17. Bxe4 (17. Nc5 {looks rational but there are hidden tactics in this seemingly quiet position.} Qf6 (17... b6 18. Nxe4) 18. Nxe4 (18. Bxe4 dxe4 19. Nd2 Nh4 {as in the main game.}) 18... dxe4 19. Bxe4 Rxe4 20. Qxe4 Bf5 {traps the White queen.}) 17... dxe4 18. Nd2 Nh4 {taking over the initiatative since this move threatens Bxh3 and Qg6+} 19. f3 (19. Nxe4 {is no help due to} Qg6 20. f3 Bxh3 {transposing to the main game continuation.}) 19... Qg6 20. Nxe4 Bxh3 {The very first move of the often problematic Black queen's bishop gives Black a winning game.} 21. Rf2 Bxg2 {and the second destroys the White king's pawn cover.} 22. Rxg2 Nxf3+ 23. Kf2 (23. Kf1 Qxe4 {and White is just two pawns down.}) 23... Qf5 {White has no defence against Rxe4. If the king flees to try and pin the Nf3 then Black wins with some fireworks as follows.} (23... Qf5 24. Ke2 Rxe4 25. Rf1 (25. Rf2 Rxe3+ 26. Kxe3 Re8+) 25... Nxd4+ 26. Kd2 Qxf1 27. Qxe4 Nf3+ {and Qxg2. A dramatically rapid transformation from an about to be squeezed positionally opening to a devastating counter-attack.}) 0-1