8.Bg3 is probably not the best. I would have played 8.c3 first to prevent the combination after ...g4, then 9.Bg3, unless Black wants to try 8...fxe5 9.cxb4 which looks good for White. Even earlier, 7.c3 looks better than 7.Be5.
9...Nxg3 and Black laughs louder. Black follows up with 10...gxf3, and 11...Be7 with a won game for Black.
After 9...Bxc3, 10.bxc3 looks better than 10.Bb5+
12...Nxb5 looks OK.
13.Bxb8 doesn't look right. Simply 13.Bf1.
14...Rg8. Why? 14...fxg2 15.Rg1 e5 should win for Black.
21...Be2 is the losing move. Black needs to continue with 21...c5 and open up the center.
Stronger than 22.Re1 is 22.Qc2!, winning a piece (knight or bishop)
22...Bc4 looks slightly better than 22...Bb5.
Professor Chess, there is nothing wrong with 23.Ng1. It threatens 24.f3 winning the rook. Being a professor doesn't mean you know or understand chess. And why would you hit a student who knows more than you do?
23...Nb1 is interesting.
24.f3 looks best.
26.Rdc2, ignoring it and hoping the threat goes away should lose immediately. White should have played 26.Nxe2 and 27.Rc7.
26...Ba4?? loses for Black. 26...Nxc1 and 27...Rxd4 wins for Black.
No, White's plan was stupid, not cunning. Any strong player would not hesitate in taking the rook with 26...Nxc1. Relying on your opponent not seeing it or trying something else is suicidal in higher levels of chess.
28...Kf7 at least gives White a few ways to go wrong. But best is 29.Qf3 Nxg3 30.Qxg3 and 31.Qg8 wins.
Unfortunately these really are my thoughts during a game. I spend a lot of time calculating if an unsound sacrifice will look snazzy instead of looking for things like checkmate and winning chances.
1. d4 e6 2. Nf3 Nf6 3. Bf4 Ne4 Black wants to infiltrate the enemy camp.
4. e3 Bb4+ 5. Nbd2 … White is counting on the King’s Knight to protect the Queen’s Knight.
5. … d5 6. Be2 g5! 7. Be5 f6 8. Bg3 g4 If the Knight doesn’t move it will be captured but if it does move the other Knight is doomed.
9. c3 Bxc3 Black munches and laughs.
10. Bb5+ c6 When in doubt, make a mess. At this point White said, "What else can I put en prise?"
11. bxc3 Nxc3 Black has gotten two pawns for its Bishop plus it is threatening to capture a Queen, a Bishop, and a Knight.
12. Qb3 gxf3 13. Bxb8 Nxb5 14. Bg3 … An amazing series of silly moves. Black is up two pawns.
14. … Rg8 15. Nxf3 … White is pleased Black did not play 14. ... fxg.
15. … Qa5+ 16. Kf1 Rg4? Whyfore this move?
17. h3 Re4 How long can the Rook survive there?
18. Rd1 Nc3 19. Rd2 b6 20. Kg1 Ba6 21. Kh2 ... Talk about castling the hard way.
21. ... Be2 There are more Black pieces on the White side of the board than on the Black side of the board.
22. Re1 Bb5 23. Ng1 ...
Professor Chess: "The games half over and your Knight isn't developed yet?"
Timmy: "I swear it was out there just a moment ago, Dame Dominos."
Professor Chess: "What did I tell you about not calling me Professor Chess?" *SMACK*
23. ... c5 24. Rc1 cxd4 25. exd4 Ne2 Attacking everything again.
26. Rdc2 ... White ignores it and hopes it goes away. ^_^ Actually this is a clever move that is threatening to threatening to threaten.
26. ... Ba4 Aha! It worked! White's stupid... er... cunning plan is realized at last. With Black attacking the Knight, Bishop, Rook, and Queen; White once again asks the magic question: "What else can I put en prise?"
27. Rc8+ ... White has just enough time to save his assets.
27. ... Rxc8 28. Rxc8+ Kd7 29. Rc7+ Ke8 Now where did White put that mate?
30. Qf3 Qe1 There it is. Oops, that's Black's mate.
31. Nxe2 Rxe2 32. Qh5+ Kd8 33. Qxh7 Qd1 34. Qe7#
Never in the history of chess have these moves been made in this order on purpose... until now.