[Event "CAN-ch"]
[Site "Kingston CAN"]
[Date "2019.04.21"]
[Round "6.1"]
[White "Noritsyn, Nikolay"]
[Black "Samsonkin, Artiom"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2489"]
[BlackElo "2424"]
[Annotator "John Upper"]
[PlyCount "65"]
[EventDate "2019.04.18"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "CAN"]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 g6 {[#]Dragadorf -
a Dragon-Najdorf hybrid. White has a very wide range of moves here -- Be3
being the most popular -- none which score particularly well. White plays the
most aggressive...} 7. g4 $5 h5 ({Black has alternatives here too:} 7... b5 $5)
(7... h6 {is reasonable too.} 8. Be3 (8. h4 b5 9. Bf3 e5 10. Nb3 Be6 11. a4 b4
12. Nd5 Bxd5 13. exd5 a5 14. Be3 Nbd7 15. Qe2 Be7 16. O-O-O $16 {1-0 (45)
Anand,V (2725)-Short,N (2665) Amsterdam, 1996.}) 8... Bg7 (8... Nc6 9. f4 Qc7
$2 10. g5 hxg5 11. fxg5 Nh5 12. Nd5 $18 Qa5+ 13. b4 Qd8 14. Nxc6 bxc6 15. Bb6
$18 {1-0 (28) Hansen,E (1895)-Aspler,G (1967) Edmonton 2005}) 9. f3 b5 10. Qd2
Bb7 11. a3 Nbd7 12. O-O-O Nb6 13. Nb3 $14 Nfd7 14. Na5 Qc7 15. Bd4 Bf6 16. h4
Bxd4 17. Qxd4 O-O-O 18. Nxb7 Qxb7 $2 19. a4 bxa4 20. Nxa4 $18 {1-0 (53) Leko,P
(2713) -Georgiev,K (2655) Dubai 2002}) 8. g5 Nfd7 9. f4 Bg7 (9... Nc6 10. Be3
Bg7 11. O-O $6 Nb6 (11... Nxd4 12. Bxd4 e5 $13 {gives up d5 but secures e5 for
a Black piece.}) 12. Nxc6 bxc6 13. f5 Be5 14. Qe1 O-O $4 15. fxg6 $18 {Black
can't recapture on g6 without hanging the Nb6 to Qf2+, so he resigned here in
Herrera,I (2478)-Almagro Mazariegos,S (2292) Mancha Real, 2002.}) 10. f5 $1 $16
(10. Rf1 $1 $16) 10... Nc6 11. Be3 Nxd4 12. Bxd4 Be5 $1 (12... Ne5 $2 13. Rf1
$18) 13. Qd2 b5 14. O-O-O Bb7 15. Rhf1 Qc7 16. Kb1 (16. Nd5 Bxd5 17. exd5 Rc8
18. Be3 $1 $18) 16... Rc8 17. Bxe5 Nxe5 {[#]} 18. f6 $6 (18. a3 $1 O-O 19. f6
$16) (18. Nd5 $5 Bxd5 19. exd5 {and White can choose to double on the f-file
before playing f6 or fxg6.}) 18... b4 $1 19. Nd5 Bxd5 20. exd5 O-O $1 21. Rc1 (
21. fxe7 Rfe8 22. Bxa6 $13 {the Ne5 and queenside lines are worth the pawn.}) (
21. Bxa6 $2 Ra8 22. Bb5 (22. Bd3 $2 Qa7 $17) 22... Qa7 (22... Qa5 $4 23. a4 $18
) 23. a3 bxa3 24. b3 $15) 21... a5 22. Rf4 {[#]} Qb7 $2 {This is a perfectly
reasonable move -- c2 is well defended, so Black gives up the battery while
the Q keeps an eye on d5 (stopping Bd3) and unblocks the Rc8 to allow ...Rc5
and ...Rfc8 -- but being on b7 leaves the Q one move slower to get to the
kingside...} (22... Rfe8 $13) (22... Qb6 $142) (22... Qa7 $142 $17 {prepares ..
.Rc5 while keeping the Q on a more active diagonal} 23. Bxh5 $2 gxh5 24. Qe2
Ng6 25. Qxh5 Rxc2 {only move} $19 26. Qh6 (26. Rxc2 Nxf4 27. Qh6 exf6 28. gxf6 Qg1+ $19)
26... Rxc1+ 27. Kxc1 Qe3+ 28. Kd1 exf6 29. gxf6 Qg1+ 30. Kd2 Nxf4 $19) (22...
Qd7 $142 23. Bxh5 $2 gxh5 24. Qe2 Ng6 25. Qxh5 Nxf4 26. Qh6 exf6 27. gxf6 Qg4
$19) 23. Bxh5 $3 {... and White siezes his chance before Black has time for ...
Rc5 and ...Rfc8.} Rc5 $2 (23... gxh5 $1 {is critical, and shoud draw with best
play, but it is very very hard to see how Black can defend g7 against
Qh5-h6-h7#, especially since the normal ways to defend g7 (...Qf8 or ...Qg6,
or eliminating the f6-pawn) are clearly not possible. The key in several of
these lines is that Black can defend back along the g-file after exchanging
pawns on f6.} 24. Qe2 Ng6 (24... Ng4 $2 25. h3 $18) 25. Qxh5 {only move} (25. Rf5 $2 Qd7
{only move} 26. Rcf1 Qc7 {hitting c2} 27. R1f2 (27. R5f2 {keeps c2 and the back rank
defended, but} Qc4 $1 28. Qxh5 exf6 {only move} 29. gxf6 Qh4 {only move} $19) 27... Rfe8 28. Qxh5
a4 29. Qh6 exf6 $19 {stops mate and threatens ...Re1.}) 25... Nxf4 26. Qh6 Nh5
{only move} {that this move -- which is the only way to prevent Qg7# -- could do more
than postpone mate by a move is probably the hardest part to see.} 27. Qxh5
Qxd5 28. Qh6 {only move} (28. Rg1 Qd2 $19 {hits c2 and prevents g5-g6.}) 28... exf6 {only move}
29. g6 {only move} (29. gxf6 $4 Qg2 $19 {defends g7 and wins.}) 29... fxg6 30. Qxg6+ $11
{and White can and should force a draw.} Kh8 31. Qh6+ (31. Rg1 $4 Qg8 $19)
31... Kg8 32. Qg6+ $11 (32. Rg1+ $6 Kf7 33. Qg7+ Ke6 34. Re1+ Qe5 {only move} $15)) 24.
Be2 $1 Qxd5 {Materially, trading Black's h-pawn for White's d-pawn is equal,
but the open h-file and terrible dark-squares around the Black K spell doom so
long as White keeps the major pieces on.} 25. Qe3 $1 (25. Rd4 $1 Qe6 26. fxe7
Qxe7 27. Rxd6 $16) 25... Qe6 (25... Nc6 26. Bd3 (26. Rg1 Qe6 27. Qf2 exf6 28.
gxf6 Re8 (28... Rc8 $2 29. Bg4 $16) 29. Rxg6+ fxg6 30. f7+ $14) 26... Qxg5 (
26... Qe5 27. Qg3 Qxg5 28. Rg4 Qxf6 29. Bxg6 $18) 27. Rg1 Re5 (27... Qh6 28.
fxe7 Re8 29. Bxg6 $18) 28. Qf2 Qh6 29. Rfg4 $18 {once again, threatening Bxg6.}
) 26. Qg3 $1 exf6 27. gxf6 $1 Nc4 28. Bd3 {There's no good defence to Bxg6.}
Na3+ (28... Qe3 29. Bxc4 $18 {wins a piece.}) (28... g5 29. Qh4 $1 {mates with
bonus style points.}) 29. bxa3 bxa3 30. Bxg6 $1 Rb8+ 31. Ka1 Kf8 (31... Qe5+
32. c3 $18) 32. Bh7 Ke8 33. Re4 1-0
