Not Too Long Ago

韦奕 (Wéi Yì) – 万云国 (Wàn Yúnguó)
13rd Chinese Chess League; 北京 (Běijīng), June 6, 2017
Pirc Defence B07

1. d4 Nf6 2. Bf4 g6 3. Nc3 Bg7 4. e4 d6 5. Qd2 0-0. For 5. ... Nc6 6. Nf3 Bg4 [for 6. ... 0-0 7. Bh6 e5 8. Bxg7 Kxg7 9. d5 Ne7 10. Be2 Bg4 11. Ng1 Bd7 12. Nf3 h6 13. h3 Nh7 14. g4 g5 15. Nh2 Ng6 16. Nf1 Nf4 17. 0-0-0 Rh8 18. Ne3 Nf8 19. h4 see 韦奕 (Wéi Yì) – Melkumyan, World Blitz Chess Championship, Doha 2016] 7. d5 Nb8 8. Be2 Nbd7 9. h3 Bxf3 10. Bxf3 c5 11. 0-0 a6 12. a4 0-0 13. Rfe1 Qa5 14. Ra3 see 韦奕 (Wéi Yì) – Mamedov, World Blitz Chess Championship, Doha 2016. 6. 0-0-0 Nc6 7. f3 Nh5? It seems a very unfortunate novelty, which only helps White to mount his serialised Kingside attack. For 7. ... a6 8. g4 Re8 9. Bh6 Bh8 10. h4 e5 see Fedorchuk – Czerwonski, 1st Bank Pocztowy SA Open, Bydgoszcz 1999. 8. Bh6 e5 9. Nge2 Bxh6 10. Qxh6 exd4 11. Nxd4 Nxd4 12. Rxd4 Bd7 13. g4 Nf6. 13. ... Qf6 would work only in case of 14. Qe3 (14. ... Qf4), but White would clearly go for a lot more by 14. Qd2! Qxf3 15. Rg1 Nf4 16. e5 with a win at hand. 14. h4 Qe7 15. h5 Be6 16. Rd2 Kh8 17. Qe3. Black is so harmless that White can afford himself to take all the time necessary for his army to deploy in its best possible (mating) formation. 17. ... Kg8 18. Rdh2 Rad8 19. Qh6 c6 20. Bd3 Kh8

21. e5! 1 : 0. For if 21. ... dxe5 there would follow 22. g5 Ng8 (or 22. ... Nxh5 23. Qxh7+! Kxh7 24. Rxh5+ Kg7 25. Rh7+ Kg8 26. Rh8+ Kg7 27. R1h7 mate) 23. Qxh7+! Kxh7 24. hxg6++ Kg7 25. Rh7 mate.