[Event "ACC Championship 2019"]
[Site "?"]
[Date "2019.06.17"]
[Round "1"]
[White "Macdonald, Paul"]
[Black "Hague, Ben"]
[Result "0-1"]
[ECO "A01"]
[Annotator "Nigel"]
[PlyCount "84"]
[SourceVersionDate "2019.06.17"]

{Paul's unusual take on Larsen's opening (1.b3, 2.Bb2, 3.e4) gives Ben few
problems in equalizing. On move 16 White offers an interesting P sac teasing
Black’s weak back rank and undeveloped Bc8. Confident in his ability and
calculation Ben takes the P. White slips with an inaccurate exchange of his
good Nd6 and Black keeps his extra pawn in a R&P ending. Both rooks are active
and drawing chances are high but persistent pressure and shortage of time
provoke an error from White and Ben is rewarded for his calm defense. I noted
the times at move 16: 33 min remaining to White and 63min to Black; at move 38,
1min for White, 37min for Black.} 1. b3 e5 2. Bb2 Nc6 3. e4 {Paul's unusual
take on Larsen's opening gives Ben few problems in equalising.} Nf6 4. Nf3 Bc5
5. Nc3 Ng4 6. d4 exd4 7. Nd5 O-O 8. Bc4 Nce5 (8... d6 9. O-O Nce5 10. Be2 c6
11. Nf4 Nf6 $15) 9. Nxe5 Nxe5 10. Bxd4 Bxd4 11. Qxd4 Nxc4 12. Qxc4 (12. bxc4
Re8 13. O-O d6 $11) 12... c6 13. Ne3 Qa5+ 14. b4 Qe5 15. O-O Re8 16. Rfe1 {
An interesting P sac teasing the weak back rank but seems to offer no more
than equality} Qxe4 {Qc3 & f3 are alternatives maintaining equality:} 17. Qxe4
(17. Qc3 Rf8 18. Nc4 Qf4 19. g3 Qh6 20. Re7 d5 21. Na5 $11) (17. f3 Qxc4 18.
Nxc4 Re6 19. Nd6 Kf8 20. Rad1 b6 $11) 17... Rxe4 18. Nf5 $6 $17 (18. Rad1 g6) (
18. Nc4 d5 19. Rxe4 dxe4 $15) 18... d5 19. Rxe4 dxe4 20. Nd6 f5 21. Rd1 (21. f3
e3 22. f4 Kf8 23. Re1 Ke7 24. Nxc8+ Rxc8 25. Rxe3+ Kf8 $11) 21... b5 22. Nxc8
$2 (22. Ne8 Kf8 (22... f4 23. Rd8 Bb7 24. Rxa8 Bxa8 25. Nc7 Bb7 26. Ne6 Bc8 27.
Nxf4 Kf7 $11) 23. Nc7 Rb8 24. Rd8+ Ke7 25. Rh8 Rb7 26. Rxc8 Kd7 27. Rg8 Rxc7
28. Rxg7+ Kd6 $11) 22... Rxc8 $17 23. Rd7 c5 24. bxc5 Rxc5 25. Rxa7 Rxc2 26. g3
b4 27. Rb7 Rb2 28. h4 g6 29. Ra7 $17 Rb1+ 30. Kg2 Ra1 31. Ra4 Kg7 $6 32. Rxb4
Rxa2 33. Rb3 Kh6 34. Re3 Kh5 35. Rb3 Kg4 36. Rc3 Rd2 37. Ra3 Re2 38. Rb3 f4 $6
39. gxf4 Kxh4 40. Kf1 Rd2 41. Rg3 $2 $19 (41. Rb7 h6 (41... h5 42. Rb6 $11) 42.
Rb6 Kh5 43. Re6 Rd3 44. Kg2 Rd4 45. Kg3 $11) 41... Rd3 42. Rg1 Rd1+ 0-1

[Event "ACC Championship 2019"]
[Site "?"]
[Date "2019.06.17"]
[Round "1"]
[White "Garbett, Paul"]
[Black "Fan, Allen"]
[Result "1-0"]
[ECO "B09"]
[Annotator "Nigel"]
[PlyCount "97"]
[SourceVersionDate "2019.06.17"]

{Allen tries a new move 7…,c5 in the Pirc but this leads only to an early
exchange of Qs and a better endgame for White…not a great idea against one
of the country’s strongest players. Paul plays a beautiful positional game
constricting Black’s development while avoiding all risk. White wins a P but
more important his K&B&R advance on Black’s K choking it to death. Apart
from one slip 31.R1d6, which allows equality, a fine win by Paul.} 1. e4 d6 2.
d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. Bc4 {7.h4 is the most
popular move in GM practise but such lines are not to Paul's taste} e6 8. Be3
c5 $2 {An unlikely move, not in ChessBase14! White gains a lead in development
and the d-file. Much better is a6-b5 developing Bb7} (8... a6 9. O-O b5 10. Bd3
Bb7 11. Qe1 c5 12. dxc5 dxe5 13. Be4 Nc6 14. Rd1 Qe7 15. Qd2 Nxc5 16. Bxc6 Bxc6
17. Qd6 Qxd6 18. Rxd6 Bxf3 19. Bxc5 Rfc8 20. Rxf3 Rxc5 21. fxe5 Bxe5 22. Rd7
Rf8 23. Ra7 b4 24. Nd1 Rxc2 25. Rxa6 Rd8 26. Rf1 Rdd2 {0-1 (26) Gaudineau,E 
(2335)-Efimov,I (2446) France 2007}) 9. exd6 Nb6 10. Be2 cxd4 11. Bxd4 Qxd6 12.
Bxg7 Qxd1+ 13. Rxd1 Kxg7 $16 14. O-O {Kf2 comes into consideration} Nc6 $2 {
Obvious but not good; poor Bc8 struggles to develop. Better is:} (14... Bd7 15.
Ne5 Bc6 16. Rd2 $14) 15. Nd4 {Immediate Rd2 and doubling is preferred:} (15.
Rd2 Ne7 16. a4 Rb8 17. a5 $14) 15... Ne7 $2 (15... Bd7 $1 16. Nf3 Rac8 17. Rd2
Na5 $14) 16. g3 Rb8 17. Rf3 h5 18. Ne4 Ned5 19. c4 Nf6 20. Nxf6 $1 {A very
Garbett move! Not distracted by complexity of Nd6/g5 White goes for pure
positional pressure without risk} Kxf6 21. Ra3 a6 22. Nf3 Ke7 23. Ne5 Nd7 24.
Rad3 Nxe5 25. fxe5 b6 26. Bf3 f6 27. exf6+ Rxf6 28. Be4 Kf7 29. Rd8 {White has
a decisive advantage} e5 30. R1d6 $2 {Paul's only slip in a fine game; this
relieves the pressure on the back rank. Instead:} (30. h3 h4 31. g4 Rf4 32.
Bd5+ Ke7 33. Rh8 $18) 30... Rxd6 31. Rxd6 $11 g5 $2 (31... Bf5 $1 32. Bxf5 gxf5
$11) 32. Rd8 $18 {Phew! Back rank is controlled again and White is winning} Ke7
33. Rh8 Kd6 34. b4 (34. Rxh5 Be6 35. Rxg5 Bxc4 {is also winning but why allow
Black to get his B out?}) (34. Kf2 g4 35. Ke3 Kc7 36. Bg6 $18) 34... h4 (34...
Kc7 35. Rxh5 g4 36. Rxe5 $18) 35. gxh4 gxh4 36. Re8 (36. Bf5 $1 $18) 36... Kc7
37. Rxe5 Bh3 {Finally B moves and with a threat!} 38. Kf2 Rf8+ 39. Ke3 Rf1 40.
Rh5 Be6 41. Kd4 h3 42. Rh7+ Bd7 43. c5 bxc5+ 44. bxc5 Kc8 45. Bd5 Rf2 $2 (45...
Rf4+ 46. Ke5 Rf5+ 47. Kd4 Rf4+ 48. Ke5 Rf5+ 49. Ke4 $18 Rf2 {And Black is
still alive}) 46. Ke5 (46. c6 $1 Bxc6 47. Bxc6 $18 Rxh2 48. Kc5 Rc2+ 49. Kd6
Rd2+ 50. Bd5 Kb8 51. Rb7+ Kc8 52. Ra7 Rb2 53. Rh7 Rb6+ 54. Bc6 {mates}) 46...
Rxh2 $2 {Last chance to keep alive:} (46... Rf5+ 47. Kd6 Rf6+ 48. Ke5 Rf5+ 49.
Ke4 Rf2 50. Rf7 Re2+ 51. Kf4) 47. Kd6 Be8 48. Ra7 Rd2 49. Ra8# 1-0

[Event "ACC Championship 2019"]
[Site "?"]
[Date "2019.06.17"]
[Round "1"]
[White "Steadman, Michael"]
[Black "Gong, Daniel"]
[Result "1/2-1/2"]
[ECO "E61"]
[Annotator "Nigel"]
[PlyCount "116"]
[SourceVersionDate "2019.06.17"]

{Daniel opens with 4…Bf5 variation in Kings Indian, favoured by Caruana.
Michael counters with 5.g3,Ne4; 5.Qb3 and both players are on unfamiliar
territory. Black equalizes and develops a grip on the c-file. Instead of
patiently building on this he chooses simplification and penetration of
White’s back ranks with his Q 32…Qh3?! The position is equal though and
perhaps out of frustration Daniel makes a risky decision to create a passed
a-pawn at the expense of allowing White a passed b-pawn 40…b4?! The position
is complex and White misses or chooses not to create favourable complications
with 4 Qs on the board 52.b6! & 54.e5! Black wisely steers the game to a draw
with perpetual check.  A tough struggle in which both players had winning
chances in different phases.} 1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. g3 Ne4
6. Qb3 (6. Nxe4 Bxe4 7. Bg2 Bg7 8. O-O O-O 9. Be3 c5 10. Qd2 $11 {is the most
common treatment eg:} Qb6 11. Bh6 Bxh6 12. Qxh6 Bxf3 13. dxc5 Qxc5 14. Bxf3 Nc6
15. Rac1 a5 16. Rfd1 Qb6 17. Qd2 a4 18. h4 Ne5 19. h5 Rfc8 20. hxg6 hxg6 21.
Kg2 Rxc4 22. Rxc4 Nxc4 23. Qh6 Ra5 24. b3 axb3 25. Rh1 Qd4 26. axb3 Nb6 27. Rh4
Qf6 28. Qh7+ Kf8 29. Qh6+ Kg8 30. Qh7+ Kf8 31. Rb4 Nc8 32. Rxb7 Rc5 33. b4 Rc2
34. Rb8 Ke8 35. Qg8+ Kd7 36. b5 d5 37. Bxd5 Qd6 38. Rb7+ Rc7 39. Qxf7 Rxb7 40.
Bxb7 Nb6 41. Be4 g5 42. Qf5+ Qe6 43. Bc6+ Kd6 44. Qxg5 Qxe2 45. Qe3 Qxe3 46.
fxe3 Nc4 47. Kf3 Ke5 48. Ke2 Kf5 49. Kd3 Nb6 50. Kd4 Kg4 51. Kc5 Na4+ 52. Kb4
Nb6 53. Ka5 Nc4+ 54. Ka6 Ne5 55. Be8 Nc4 56. b6 Nxb6 57. Kxb6 Kf3 58. g4 {
1-0 (58) Lenic,L (2637)-Caruana,F (2782) Warsaw 2013}) 6... Qc8 $6 (6... Nxc3
7. Qxb7 Be4 8. Qb3 Nxa2 9. Rxa2 Bg7 10. Be3 O-O 11. Bg2 Nc6 12. O-O Rb8 13. Qd1
d5 14. Ne5 Nxe5 15. dxe5 Bxg2 16. Kxg2 dxc4 17. Qxd8 Rfxd8 18. f4 f6 19. Rc1
Rb3 20. Kf2 fxe5 21. Rxc4 exf4 22. gxf4 e5 23. Rxc7 exf4 24. Bxa7 Bxb2 25. Bc5
Rb5 26. Kf3 Re8 27. Bd6 Rb3+ 28. Kg4 Bf6 29. Raa7 h5+ 30. Kxf4 Rbe3 31. Rc4
Rxe2 32. h3 R2e3 33. Ra3 Be5+ 34. Kg5 Bxd6 35. Rxe3 Rxe3 36. Kxg6 Rxh3 37. Rc8+
Bf8 {0-1 (37) Lekic,D (2425)-Theodorou,N (2338) Heraklion 2015}) 7. Bg2 {
White misses a trick here:} (7. g4 $1 Nxc3 8. gxf5 Ne4 9. Bh3 Nd7 10. c5 Bg7
11. fxg6 hxg6 12. Bxd7+ $16) 7... Nxc3 8. bxc3 Be4 9. h4 h6 10. O-O (10. c5 Bg7
11. Ne5 dxe5 12. Bxe4 $16) 10... Bg7 11. c5 O-O 12. cxd6 cxd6 $11 13. Bb2 Nc6
14. Nd2 Bxg2 15. Kxg2 Na5 16. Qb4 b6 17. e3 Qc6+ 18. f3 Rac8 19. Rac1 Rc7 $15 {
Black consolidates his grip on the c-file} 20. Rfe1 Rfc8 21. Kf2 Qd5 (21... d5
22. Ba1 e5 23. Qb2 h5 $17 {Black is clearly making progress}) 22. Qa4 Qb7 23.
Qb5 a6 24. Qd3 b5 $17 25. a3 e5 (25... h5 $17) 26. h5 Kh7 27. Rh1 exd4 {
Releases most of the pressure, better is:} (27... Nc4 28. Nxc4 bxc4 29. Qc2 Rb8
30. Ba1 Qd5 $17) 28. cxd4 Rxc1 29. Rxc1 Rxc1 30. hxg6+ fxg6 31. Bxc1 Qc8 32.
Bb2 Qh3 $6 {Looks like penetration but merely dissipates Black's advantage} (
32... Nc4 33. Ba1 d5 {The a-P will fall or if White exchanges Black has a
protected passed P}) 33. Qf1 Qf5 34. e4 Qf7 $11 35. Qc1 Qa2 36. Qc3 Nc6 37. Nb3
a5 38. Ke3 a4 (38... b4 39. axb4 axb4 40. Qc2 {holds equality}) 39. Nc1 Qb1 40.
Ne2 $11 b4 $6 {Daniel, frustrated with lack of progress tries an ambitious
plan to create a passed a-pawn...which might have lost...} 41. axb4 Na7 42. Qa3
Nc8 43. Qa1 Qc2 44. Qc1 Qb3+ 45. Qc3 Qa2 46. Qxc8 (46. Nc1 Qe6 (46... Qb1 47.
Nd3 Na7 48. Qc4 $18) 47. Qc7 d5 48. Nd3 a3 49. Nf4 Qb6 50. Qxb6 Nxb6 51. Ba1
$16) 46... Qxb2 47. Qc3 Qa2 48. Nc1 Qb1 49. Qa3 h5 50. Ne2 Qc2 $2 (50... Qe1 $1
$11 51. Qxa4 Bxd4+ 52. Kxd4 Qd2+ 53. Kc4 Qxe2+ 54. Kd5 Qxf3) 51. b5 $18 {
White has a passed P too!} Qc4 52. Qb2 (52. b6 Qa6 53. Qb4 a3 54. b7 a2 55.
b8=Q a1=Q 56. Q8xd6 Q6a2 57. Qbb6 {4 Queens appear on the board! Whites extra
passed P and fairly safe K indicate a win}) 52... Bh6+ 53. f4 d5 54. b6 (54. e5
$1 {creating another passer is decisive} Bf8 55. b6 a3 56. Qc3 Qb5 57. Qc7+ Bg7
58. Qa7 Qb2 59. b7 a2 60. b8=Q Qxb8 61. Qxa2 $18) 54... dxe4 55. b7 Qd3+ {
Black draws by threats of perpetual check} 56. Kf2 a3 57. Qa2 Qf3+ 58. Kg1 e3 {
Draw agreed} 1/2-1/2

[Event "ACC Championship 2019"]
[Site "?"]
[Date "2019.06.17"]
[Round "1"]
[White "Zhang, Jasmine"]
[Black "Goodhue, Nathan"]
[Result "1/2-1/2"]
[ECO "A46"]
[Annotator "Nigel"]
[PlyCount "119"]
[SourceVersionDate "2019.06.17"]

{Jasmine played her usual London system and with 12.f4, f5 players adopt a
double stonewall. Nathan opened and controlled the a-file but did not extract
value from it Jasmine with h3-g4 attacks the K-side. Black now makes a
significant error in 29…Kf7 allowing 30.h5! opening files and suddenly his
King is in serious trouble. White develops a winning attack and wins an
exchange but at a critical moment exchanges Qs with 39.Qf7+; instead 39.Qh2!
looks like a win. A complex ending arises in which it is not clear if
Black’s 2B & P can draw against White’s R&B. In fact, Stockfish reveals a
subtle win at several points but after a long game both players are short of
time and agree a draw after repeating several moves.} 1. d4 Nf6 2. Bf4 e6 3. e3
c5 4. Nf3 Nc6 5. c3 b6 6. Bd3 Bb7 7. Nbd2 d5 8. Ne5 Nxe5 9. Bxe5 Nd7 10. Bg3 {
Novik(2462)-Yemelin(2568) was agreed drawn in this position!} Be7 {And here we
leave ChessBase 14} 11. O-O O-O 12. f4 {Committal; more flexible is 12.Qe2 or
even 12.Qh5 fighting for e4 square and reserving f3-e4 as an option} (12. Qh5
f5 13. a4 Nf6 14. Qe2 {Equal or minimal advantage}) 12... f5 $11 {A double
stonewall has arisen with White's bad B outside the P chain. Significant
advantage will be hard to obtain for either player; Black will initiate action
on the Q-side; White on the K-side although many prepartory moves are needed}
13. Nf3 c4 14. Bc2 b5 15. b4 $6 {Stockfish does not like this move as it
allows Black to open & control the a-file. Preferred is:} (15. Qe1 Qc7 16. Bh4
Nf6 17. Bxf6 Bxf6 18. Ne5 Bxe5 19. dxe5 $14) 15... a5 16. a3 Bc6 17. Qd2 Ra6
18. Rfb1 Qc7 19. Ng5 Bb7 20. bxa5 h6 21. Nf3 Rxa5 22. a4 Rfa8 23. Qd1 bxa4 24.
Rxa4 Bc6 $6 {Inaccurate -better is:} (24... Rxa4 25. Bxa4 Bc6 26. Bc2 Ra3 27.
Be1 Qa7 $15 {BQ is now behind the rook which is better than in front!}) 25.
Rxa5 Qxa5 26. Be1 Qa2 {The Q has no purpose here and Black retreats it next
move} 27. h3 Qa5 28. g4 g6 29. h4 Kf7 $2 (29... Kg7 {and now if:} 30. h5 $2 (
30. g5 h5 $15) (30. Nh2 Nf6 31. h5 Be8 32. hxg6 Bxg6 33. Rb7 Kf8 $11) 30...
fxg4 31. Nh2 gxh5 32. Nxg4 Ba4 $17) 30. h5 $1 $16 {Suddenly White is better}
Rg8 31. Kh1 fxg4 32. Bxg6+ Rxg6 33. hxg6+ Kg7 {White has won the exchange with
threats against Black K} 34. Ne5 Nxe5 35. fxe5 h5 36. Qe2 $2 Bg5 $2 {Both
players make inaccuracies in a complex position} (36... Qa8 37. Qh2 Kxg6 {
With 2 connected P shielding his K, Black has achived equal chances}) (36...
Kxg6 37. Qc2+ Kg7 38. Qh2 Kg6 39. Kg1 {with the idea of Rb8 and if ...Qa1 then
Kf1} Qd8 40. Bg3 {'White is winning' Stockfish +4}) 37. Qf2 {White is winning}
Qc7 38. Rb8 Qe7 39. Qf7+ $2 {A strange mistake swapping Qs in an attacking
position - the ending is only equal} (39. Qh2 $1 h4 (39... Kxg6 40. Rh8 $18)
40. Qe2 Be8 41. Qxg4 Bxg6 42. Kh2 Kh7 43. Rb2 $18) 39... Qxf7 40. gxf7 Kxf7 $11
{Chances are equal} 41. Rh8 Kg6 42. Rg8+ Kf5 43. Rh8 Bxe3 44. Rxh5+ Kf4 45. Kg2
Ba4 $2 {This loss of time could prove fatal...better is:} (45... Ke4 46. Kg3 (
46. Rh4 {And now Black can defend with Kf5= or the ambitious Kd3=} Kf5 $11 (
46... Kd3 47. Rxg4 Ke2 48. Bh4 Bd2 49. Rg6 Bd7 50. Rg7 Ba4 51. Rg3 Bc2 {
White is a clear exchange up but the active K near the weak c3 is sufficent to
draw})) 46... Ba4 47. Rh7 Bd1 $11) 46. Rh6 Bd7 47. Rh7 Ba4 48. Rh6 Bd7 49. Rg6
$2 {A not obvious error aftrer which trhe position is drawn. The winning line
is the unexpected:} (49. Kf1 $1 Kf3 50. Rf6+ Ke4 51. Ke2 Bg5 52. Rg6 Kf5 53.
Rg7 Ba4 54. Bd2 Bd8 55. Rf7+ Kg6 56. Rf4 $18) 49... Kf5 $11 50. Rf6+ Kg5 $2 (
50... Ke4 $1 {Leads to a draw} 51. Kg3 Kd3 52. Kxg4 Ke2 53. Bh4 Bd2 {with a
similar position as previoously shown to be drawn}) 51. Kg3 (51. Bg3 $1 Bd2 52.
Kf1 Be8 53. Be1 Bc1 54. Ke2 Bg6 55. Bd2+ Bxd2 56. Kxd2 $18) 51... Bc1 52. Rf8 (
52. Rf2 Be8 53. Bd2+ Bxd2 54. Rxd2 Bg6 55. Ra2 $18 {It looks like Black can
hold but no; combinatioin of zugzwang 7 mating threats win:} Bf5 56. Ra1 Kg6
57. Ra7 Kg5 58. Rg7+ Bg6 59. Rg8 Kh5 60. Kf4 Bf5 61. Rg7 Bg6 62. Rd7 Be4 63.
Rd8 Bf5 64. Rg8 Kh6 65. Rg5 Kh7 66. Kg3 Kh6 67. Kh4 Kh7 68. Kh5 $18) 52... Ba4
$2 53. Rg8+ $2 (53. Rf2 $1 {with idea of Bd2+ swapping Bs}) 53... Kf5 54. Rxg4
Bd1 55. Rg8 Bf4+ 56. Kg2 Bh5 57. Rh8 Bg4 58. Rg8 Bg5 59. Rg7 Bf4 60. Rg8 {
And here both players short of time agreed a draw. White is still better and
could play on for many moves yet} 1/2-1/2

[Event "ACC Championship 2019"]
[Site "?"]
[Date "2019.06.17"]
[Round "1"]
[White "Watson, Bruce"]
[Black "Ang, Alphaeus"]
[Result "1-0"]
[ECO "E73"]
[Annotator "Nigel"]
[PlyCount "95"]
[SourceVersionDate "2019.06.17"]

{Bruce’s English opening soon transposes into Kings Indian Averbakh with
White retaining customary minimal advantage. Bruce incautiously allows
Black’s Queen to penetrate to h3 and Alphaeus wins a P with a nice tactical
finesse 24…Nxe4! Queens’ come off but the ending is not so easy to win as
Black’s B is constricted by d6-e5-f4 pawn chain. Alphaeus hits upon a
brilliant idea of sacrificing his R for White’s N and creating 2 passed
pawns supported by his B. It is a winning concept, albeit maybe unnecessary,
but exact execution is required. First the win slips, then the draw. A tough
game for Alphaeus to lose and full marks to Bruce for tough defense. Chess is
a game of errors!} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Be2 O-O 6. Bg5 h6
7. Be3 e5 8. d5 Na6 9. f3 c6 {Most popular in ChessBase is 9...Nh5 eg.} (9...
Nh5 10. Qd2 f5 11. Bd1 c6 12. dxc6 bxc6 13. Ba4 f4 14. Bf2 Qc7 15. Rd1 Rd8 16.
Nge2 Be6 17. Bb3 Nc5 18. Nc1 Nf6 19. O-O Bf8 20. Qe2 Rab8 21. Rd2 Be7 22. Rfd1
Nfd7 23. Na4 Rf8 24. Nxc5 Nxc5 25. Bxc5 dxc5 26. Qf2 Rfd8 27. Rxd8+ Rxd8 28.
Rxd8+ Qxd8 29. Qe2 Qd4+ 30. Kf1 g5 31. h3 Kg7 32. Nd3 Bxc4 33. Bxc4 Qxc4 34.
Nxe5 Qc1+ 35. Kf2 c4 36. Nd7 Bb4 {0-1 (36) Nieva,J-Roca,A (2350) Buenos Aires
1992}) 10. Qd2 cxd5 11. cxd5 Nd7 $6 {Better is Nh5 as in:} (11... Nh5 12. g3
Kh7 13. Bd3 Nb4 14. Bb1 a5 15. Nge2 f5 16. exf5 Bxf5 17. O-O Qd7 18. Ne4 Rf7
19. a3 Na6 20. N2c3 Raf8 21. Rf2 Nc7 22. Bc2 Nf6 23. Nxf6+ Rxf6 24. Ne4 R6f7
25. Qxa5 Bh3 26. Bd1 Ne8 27. Qb4 Bf5 28. Ba4 {1-0 (28) Del Rio de Angelis,S 
(2499)-Taboas Rodriguez,D (2399) Azuqueca de Henares 2013}) 12. g4 (12. h4 h5
13. Nh3 $16) (12. Bxh6 $4 Qh4+ $19) (12. Nb5 Nf6 13. Nxa7 $16) 12... f5 13.
gxf5 gxf5 14. O-O-O f4 15. Bf2 Ndc5 16. Kb1 Bd7 17. Bb5 Bxb5 18. Nxb5 Qd7 19.
Na3 $14 (19. Qe2 Rfc8 20. Rc1 Kh7 21. h4 $14) 19... Rfc8 20. Rc1 (20. h4 b5 21.
b3 $14) 20... b5 21. Ne2 $6 (21. h4 $1 $14) 21... Qh3 22. Bxc5 (22. Nxb5 $6
Qxf3 23. Nec3 Nxe4 $19) 22... Nxc5 23. Rhf1 $11 b4 (23... a6 24. Nc2 Bf6 $11)
24. Nc4 $2 (24. Ng1 $1 Qh4 25. Nc4 Bf8 $16) 24... Nxe4 $1 {Tactic based on Rf1
hanging -Alphaeus wins a P} 25. fxe4 Rxc4 26. Ng1 Rxc1+ 27. Rxc1 Qg4 $17 28.
Qe2 {White exchanges Qs and 'digs in' for a tough defence in the endgame.
White N can blockade on f3 and Black B will find activity on a7-g1 diagonal} (
28. Qxb4 f3 {wins a piece}) 28... Qxe2 29. Nxe2 Rf8 30. Kc2 h5 31. Rf1 f3 $6 {
Black is clearly better but decides to emark on a direct advance based on a
creative exchange sac. Simpler was:} (31... Bf6 32. Ng1 Rc8+ 33. Kb3 Bd8 34.
Nf3 Bb6 $16) 32. Ng3 h4 33. Nf5 Rxf5 34. exf5 e4 {Stockfish: 'Black has a
decisive advantage'...but winning is not so easy for the human player!} 35. Re1
(35. Kd2 Bh6+ 36. Kd1 (36. Ke1 Be3 37. Kd1 Kf7 38. Re1 f2 39. Rf1 Kf6 40. Ke2
Bc5 $19) 36... Kf7 37. Rg1 f2 38. Rh1 e3 39. Ke2 Bf4 40. Rc1 Kf6 41. Rc4 Kxf5
42. Rxb4 h3 $19) 35... Bh6 $2 (35... f2 $1 36. Rf1 Bd4 37. Kd2 Kf7 38. Ke2 Kf6
$19 {White is helpless -if he returns the exchange, Black wins the K&P ending.
Otherwise f5 & d5 fall}) 36. Kd1 e3 $2 {The win is gone but Black can still
hold with:} (36... f2 $1 37. Rf1 e3 38. Ke2 h3 39. Rc1 Bf4 40. Rc4 Bxh2 41. Rh4
Be5 42. Rxh3 Bd4 $11) 37. Rg1+ Kf7 38. Rg4 $18 {Bruce remarked after the game
- 'I thought the two Black pawns would win but once my rook got to the 4th
rank it was remarkably strong'} e2+ 39. Ke1 Be3 40. Rxh4 Bb6 41. Rf4 Ba5 42. b3
Bd8 43. Rxf3 Kf6 44. Kxe2 Ke5 45. f6 Bb6 {This is a good time to resign :-)} (
45... Bxf6 46. Rxf6 Kxf6 47. Kd3 $18) 46. f7 Bd4 47. f8=Q Ke4 48. Qf5# 1-0

[Event "ACC Club Champs 2019, B-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.1"]
[White "Lewis, Jordan"]
[Black "Yan, Caroline"]
[Result "1/2-1/2"]
[BlackElo "1668"]
[ECO "D37"]
[EventDate "2019.06.17"]

1.c4 Nf6 2.d4 e6 3.Nc3 d5 4.Nf3 Be7 5.g3 Nbd7 6.Bg2 c6 7.cxd5 cxd5 8.O-O b6
9.Bf4 a6 10.Rc1 Bb7 11.Re1 O-O 12.Na4 Rc8 13.Qb3 Bc6 14.Nc3 Nh5 15.Bd2 Nhf6
16.Bf4 1/2-1/2

[Event "ACC Club Champs 2019, B-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.2"]
[White "Ha, Huy Minh (Timothy)"]
[Black "Liu, Xinyang"]
[Result "1/2-1/2"]
[BlackElo "1605"]
[ECO "C10"]
[EventDate "2019.06.17"]
[WhiteElo "1645"]

1.e4 e6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Bd3 c5 7.dxc5 Nxe4 8.Bxe4
Nxc5 9.Qe2 Bd7 10.O-O Nxe4 11.Qxe4 Bc6 12.Qe2 Bd6 13.b3 Qf6 14.Be3 Bxf3
15.Qxf3 Qxf3 16.gxf3 O-O 17.Rad1 Rfd8 18.Rd3 b6 19.Rfd1 Be7 20.Kf1 f6 21.Ke2
Kf7 22.Bc1 Rac8 23.c4 Rxd3 24.Rxd3 Rd8 25.Rxd8 Bxd8 26.b4 Be7 27.a3 e5 28.f4
Ke6 29.fxe5 Kxe5 30.Bb2+ Kf5 31.f3 Bd6 32.h3 Be5 33.Bc1 Bd4 34.Kd3 Bf2 35.Ke2
Bg1 36.Kf1 Bd4 37.Ke2 g5 38.Kd3 Bf2 39.Bd2 h6 40.b5 h5 41.a4 Ke6 42.a5 bxa5
43.Bxa5 f5 44.Bb4 g4 45.fxg4 fxg4 46.Ke2 g3 47.Kf3 h4 48.c5 Bd4 49.b6 axb6
50.cxb6 Bxb6 51.Kg2 1/2-1/2

[Event "ACC Club Champs 2019, B-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.3"]
[White "Xie, Felix"]
[Black "McDougall, Euan"]
[Result "1-0"]
[BlackElo "1700"]
[ECO "B30"]
[EventDate "2019.06.17"]
[WhiteElo "1655"]

1.e4 c5 2.Nf3 Nc6 3.Bb5 Qc7 4.O-O Nf6 5.d3 e6 6.Bxc6 bxc6 7.c4 d5 8.Qc2 Be7
9.Nc3 O-O 10.Bg5 Rd8 11.e5 Ne8 12.Bxe7 Qxe7 13.Rad1 Ba6 14.b3 Rac8 15.Nd2 Rd7
16.f4 g6 17.Nf3 Ng7 18.g4 h5 19.h3 hxg4 20.hxg4 f5 21.exf6 Qxf6 22.Ne5 Rdc7
23.Na4 Rf8 24.Nxc5 Bc8 25.d4 Ne8 26.Qxg6+ Rg7 27.Qxf6 Nxf6 28.Rd2 Nxg4 29.Rg2
Nxe5 30.Rxg7+ Kxg7 31.fxe5 Rxf1+ 32.Kxf1 Kg6 33.Kf2 Kf5 34.Kf3 a5 35.Ke3 Kg4
36.cxd5 cxd5 37.a3 Kf5 38.b4 1-0

[Event "ACC Club Champs 2019, B-Grade"]
[Site "ACC"]
[Date "2019.06.17"]
[Round "1"]
[White "Deng, Abraham"]
[Black "Nagorski, Alex"]
[Result "0-1"]
[ECO "A45"]

1. d4 Nf6 2. Bf4 g6 3. Nf3 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 c5 7. c3 b6 8. Bd3 Bb7 9. Qe2 Nbd7 10. O-O Re8 11. Ba6 Qc8 12. Bxb7 Qxb7 13. Bh2 e5 14. dxe5 dxe5 15. e4 b5 16. Rfe1 Nh5 17. Qe3 Qc7 18. a4 a6 19. b3 Nf4 20. Bxf4 exf4 21. Qd3 Rad8 22. Qc2 b4 23. Nb1 Ne5 24. Nxe5 Qxe5 25. Ra2 bxc3 26. Qe2 Qe6 27. Qc2 f3 28. Nxc3 fxg2 29. Kxg2 Qe5 30. Re3 Bh6 31. Re2 Qg5+ 32. Kf1 Qh4 33. Kg2 Re5 34. Nd5 Rg5+ 35. Kh2 Rdxd5 36. exd5 Qf4+ 37. Kh1 Qf3+ 0-1

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.10"]
[White "Song, Yongeum"]
[Black "Michael, Andrew"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "66"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. g3 e5 2. Bg2 d5 3. b3 Nf6 4. Bb2 Bd6 5. Nf3 Qe7 6. O-O c5 7. Nc3 e4 8. Ne1
Nc6 9. Nb5 Bb8 10. d3 a6 11. Nc3 O-O 12. dxe4 dxe4 13. Nd5 Nxd5 14. Qxd5 Re8
15. Ba3 Bd6 16. c4 Nd4 17. e3 Ne2+ 18. Kh1 Nc3 19. Qd2 b5 20. Qxc3 b4 21. Qb2
Be5 22. Qc1 Bxa1 23. Bxb4 cxb4 24. Qxa1 Qe5 25. Qd1 Bb7 26. Nc2 Rad8 27. Qg4 a5
28. Nd4 Rxd4 29. exd4 Qxd4 30. Rd1 Qe5 31. Qd7 Bc8 32. Qd8 Bg4 33. Rd5 Qa1+ 0-1

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.11"]
[White "Wang, Aaron"]
[Black "Xiao, Lucas"]
[Result "1-0"]
[ECO "A31"]
[PlyCount "85"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. c4 c5 2. Nc3 g6 3. g3 Nc6 4. Bg2 Bg7 5. Nf3 d6 6. O-O Nf6 7. d4 cxd4 8. Nxd4
Bd7 9. Re1 O-O 10. Bg5 a6 11. e3 h6 12. Bxf6 Bxf6 13. Nd5 Bg7 14. Qb3 Nxd4 15.
exd4 e6 16. Ne3 Rb8 17. Nc2 Qa5 18. Bh3 Ba4 19. Qa3 b5 20. b3 b4 21. Qxa4 Qxa4
22. bxa4 a5 23. Rab1 Rfc8 24. Bf1 h5 25. Rb3 Bh6 26. Ne3 Bg7 27. Nc2 Bh6 28. f4
Bg7 29. Reb1 Kf8 30. a3 Ke7 31. axb4 axb4 32. Rxb4 Ra8 33. Ra1 Rcb8 34. Rxb8
Rxb8 35. a5 Ra8 36. a6 Ra7 37. Kg2 Kd7 38. Ra4 Kc6 39. c5 dxc5 40. dxc5 Kxc5
41. Rb4 Kc6 42. Nd4+ Kd5 43. Nb5 1-0

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.12"]
[White "Hu, Erica"]
[Black "Bashar, Mohammad"]
[Result "0-1"]
[ECO "A38"]
[PlyCount "64"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. c4 e5 2. Nc3 Nf6 3. g3 g6 4. Bg2 Bg7 5. d3 O-O 6. Nf3 d6 7. O-O c5 8. a3 Nc6
9. Rb1 a5 10. Bd2 Re8 11. Nd5 Ne7 12. Nxf6+ Bxf6 13. b4 axb4 14. axb4 Nc6 15.
Qc1 Nd4 16. Re1 Bg7 17. Nxd4 cxd4 18. e3 Bf5 19. e4 Bg4 20. f4 Qd7 21. Rf1 exf4
22. Bxf4 Be2 23. Rf2 Bxd3 24. Rbb2 Bxe4 25. Bxe4 Rxe4 26. Qf1 Rae8 27. Rbe2 f5
28. h3 d3 29. Rxe4 fxe4 30. Kh2 e3 31. Rf3 e2 32. Qf2 e1=Q 0-1

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.13"]
[White "Pendharkar, Ajit"]
[Black "Chang, Yolanda"]
[Result "1-0"]
[ECO "C34"]
[PlyCount "45"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Bc4 d6 5. O-O Bg4 6. d4 h6 7. Bxf4 Nf6 8. e5
dxe5 9. dxe5 Bc5+ 10. Kh1 Nh5 11. Qc1 Bxf3 12. Rxf3 Qd4 13. Bxf7+ Ke7 14. Bxh5
Nb4 15. Be3 Qxe5 16. Bxc5+ Qxc5 17. Rf7+ Ke6 18. Qe1+ Kd6 19. Qg3+ Ke6 20. Qg6+
Kd5 21. Rf5+ Kd4 22. Qg4+ Ke3 23. Qf4# 1-0

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.14"]
[White "Thurner, Anya"]
[Black "Milne, Virginia"]
[Result "1-0"]
[ECO "C45"]
[PlyCount "57"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qd2 Qxc6 7. Nc3 Nf6
8. Bb5 Qb6 9. Qe2 O-O 10. O-O c6 11. Bd3 d6 12. Na4 Qc7 13. Nxc5 dxc5 14. f3
Be6 15. Be3 b6 16. Rad1 Qe5 17. c4 Rad8 18. f4 Qb8 19. f5 Bd7 20. Bf4 Qb7 21.
e5 Ne8 22. e6 fxe6 23. fxe6 Bxe6 24. Qxe6+ Kh8 25. Qe4 Nf6 26. Qe3 Rd4 27. Be5
Re8 28. Rxf6 gxf6 29. Bxf6+ 1-0

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.15"]
[White "Treanor, Scott"]
[Black "Leach, Alan"]
[Result "1/2-1/2"]
[ECO "A52"]
[PlyCount "94"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3 Bc5 5. e3 Nc6 6. Be2 Ngxe5 7. Nxe5 Nxe5
8. Nc3 a5 9. O-O O-O 10. Ne4 Be7 11. f4 Nc6 12. Bf3 d6 13. Bd2 Re8 14. Be1 Be6
15. Rc1 Qd7 16. b3 Nb4 17. a3 Nc6 18. Nc3 Rab8 19. Bf2 Bf6 20. e4 Qd8 21. Re1
Bh4 22. Re2 Qf6 23. Qd2 Bxf2+ 24. Rxf2 Nd4 25. Bd1 c6 26. Ne2 Nxe2+ 27. Bxe2
Qd8 28. f5 Bc8 29. Bf3 Re5 30. Rc3 d5 31. Rd3 Qb6 32. Kf1 Bd7 33. g4 dxe4 34.
Re3 Qc7 35. Bg2 Rd8 36. Qc3 Be8 37. Rd2 Rxd2 38. Qxd2 Re7 39. Rxe4 Rxe4 40.
Bxe4 c5 41. Bd5 Kf8 42. Qg2 Qf4+ 43. Kg1 b6 44. Qg3 Qd4+ 45. Kg2 Qd2+ 46. Qf2
Qd1 47. Qg3 Qd2+ 1/2-1/2

[Event "ACC Club Ch 2019 C-Grade"]
[Site "?"]
[Date "2019.06.17"]
[Round "1.16"]
[White "Zhai, Philbert"]
[Black "Holdo, Karl"]
[Result "1/2-1/2"]
[ECO "D00"]
[PlyCount "37"]
[EventDate "2019.06.19"]
[SourceDate "2019.06.19"]

1. d4 Nf6 2. f4 d5 3. Nf3 c6 4. e3 Bg4 5. Bd3 e6 6. O-O Nbd7 7. h3 Bh5 8. Nbd2
Bd6 9. Qe1 Qc7 10. Ne5 Bg6 11. Bxg6 hxg6 12. Qg3 Nb6 13. b3 Bb4 14. Ndf3 O-O-O
15. Bb2 Ne4 16. Qh2 Nd2 17. Nxd2 Bxd2 18. Bc1 Bc3 19. Rb1 1/2-1/2

