[Event "ChessBrain World Record Attempt"]
[Site "Copenhagen Denmark, Symbion Science Park."]
[Date "2004.1.30"]
[White "Peter Heine Nielsen"]
[Black "ChessBrain"]
[Result "1/2-1/2"]
[Annotator "FM Eric Schiller"]
[ECO "E94"]
[WhiteTitle "FM"]
[WhiteCountry "Den"]
[BlackCountry "Internet"]

{Hosted by the Danish UNIX Users Group (DKUUG)}

1.d4 g6 2.c4 Bg7 3.e4 d6 4.Nc3 Nf6
{The position has entered the domain of the King`s Indian Defense, one of the 
richest and most complicated of all chess openings.}

5.Nf3 O-O 6.Be2
{Nielsen chooses the solid Classical approach. White dominates the center, 
but Black will counterattack with either ...e5 or ...c5.}

6...e5 7.O-O 7...a5
{It is a bit early for this advance, but the idea is to prevent White from 
playing a pawn to b4. After the pawn at d4 is exchanged, Black will be able 
to use a knight at c5 or b4. Out of about 20,000 games played from this 
position, this advance has only been seen a few dozen times.}


8.Re1
{8.Be3 has been the most successful move, winning most of the games. Ng4 is 
the most interesting reply. 9.Bg5 f6 10.Bh4 g5 11.Bg3 causes some problems 
for Black, since if the pawn at e5 captures at d4, the knight at f3 will 
recapture. Then the Black knight at g4 is under attack, and White`s knight 
may soon get to the hole at f5.} 

8...exd4 9.Nxd4
{The central exchange brings about a formation known as the Maroczy Bind. 
White has a grip on the central light squares, but the light square bishop 
has little to do. Black can make use of knights at e5 and c5.}

9...Bd7
{ChessBrain unveils a new plan! The idea is to bring the knight out at c6, 
and if White captures it, then the bishop can recapture, instead of the pawn.
9...Na6 10.Be3 Nc5 11.f3 leads to a fairly standard position with a persistent
advantage for White, since Black lacks any clear plan. Re8 12.Qd2 Bd7 13.Rad1
had had absolutely miserable results for the Black side.} 


10.Bg5 Nc6 11.Nxc6 Bxc6 12.f3
{White cannot claim any advantage in this position.}

12...Qd7 13.Qd2 Rfe8 14.Rac1 h5 
{I don`t like this move, which just weakens Black`s king position. The pawn at 
g6 will later need support, and this pawn can no longer provide it. 14...b6 15.Nd5
Re6!? 15...Bxd5? 16.cxd5 would create serious weaknesses on the c-file. 16.Qf4 Nh5
17.Qd2 Nf6 might have been tried.} 

15.Kh1 Nh7
{15...b6 might have been considered here as well.}

16.Bh6 Bxh6 17.Qxh6
{The White queen presents no immediate threats but the dark squares on the kingside
will be weak for a long time to come.}

17...Re5
{Definitely a computerish move, but it is hard to find anything constructive for 
Black. 17...Qd8 intends to try trading queens after ...Qg5, but White responds with
18.Nd5! and the weakness at c7 is again exposed.} 


18.Nd5 Rae8
{Most human players would be reluctant to give the rook at e5 so little wiggle room,
but there is no tactical refutation. So the Grandmaster retreats the queen, which 
can`t accomplish anything on the kingside, to attack the newly unprotected pawn at 
a5}

19.Qd2 b6 20.Bd3 Qd8
{Black`s position is very passive.}

21.Rf1
{White has a plan now. Thrust the f-pawn up the board and smash open Black`s king 
position, making him pay for the ill-advised advance of the h-pawn.}

21...Nf6 22.b3 Bb7
{Black prepares to evict the knight by playing c6, but there will be a price. The 
pawns at d6 and b6 will be weakened. Pawns don`t move backwards, and each advance 
creates a weakness or two.}

23.Qc2
{The dark squares are not where the action is. The b1-h7 diagonal, and especially 
the f5-square, will be the focus of attention.}

23...Nd7 
{The knight is better here than at h7. The queen at d8 can handle defense of g5 
if needed.  23...c6 comes into consideration. Black`s pawn structure has holes 
after 24.Nxf6+ Qxf6 25.Qf2 c5 but White`s bishop is entombed. The future of the 
game would depend on White`s ability to play f4 and e5 and some point. 26.Rce1}  

24.f4 
{White has no reason to hesitate. The attack may not be decisive, but it is the 
best plan.} 

24...R5e6 25.e5
{The Grandmaster is going all-out now. The advance opens the path to g6. At e4, 
it was just in the way. He later remarked that he couldn`t resist having a bit 
of fun, and this is certainly the most exciting move. It takes guts to play with 
such aggression against computers!}

25...c6 
{The knight is driven back.}

26.f5 
{The defender at g6 must give way! 26.Nc3!? would likely have been countered by
26... Nc5 since the bishop has come alive. Nevertheless, White seems to have the 
better of it after 27. Rcd1! This clever move would line up the rook against the 
enemy queen, and the pressure at d6 is significant. Black has weak pawns along 
the third rank, and the bishop at b7 is pathetic. Hardly a winning position, but 
one which definitely favors White.}

26...gxf5
{26...Rxe5 runs into serious trouble after 27.fxg6! cxd5 28.gxf7+ Kg7 29.fxe8Q} 

27.Bxf5
{The knight at d5 is sacrificed, but the rook at e6 will be won at the cost of a
bishop, and Black`s king is exposed.}

27...cxd5 28.Bxe6 Rxe6
{Grandmaster Nielsen sees the enemy king defended by a mere pawn. Although he is 
behind two pieces for a rook, he sacrifices a rook for the pawn!}

29.Rxf7 Kxf7 30.Qh7+ Ke8  31.Qxh5+
{Black has a bishop and a knight for two White pawns, but the king is trapped 
and cannot flee to the queenside. The only question is whether the king will be 
checkmated of whether White has nothing better than continuing to give check until 
the game is drawn.}

31...Ke7
{31...Kf8 32.Qh8+ Ke7 33.exd6+ Rxd6 34.Qg7+ Ke6 35.Re1+ and it is a forced checkmate 
in 8 moves. Kf5 36.Rf1+ Ke4 37.Qg4+ Kd3 ( 37...Ke5 38.Qf4+ Ke6 39.Qf5+ Ke7 40.Qf7#)
38.Rd1+ Kc3 39.Qd4+ Kb4 40.a3+! Kxb3 41.Rb1+ Ka4 42.cxd5+ Kxa3 43.Qa1#)} 

32.Qg5+
{White has nothing better.}

32...Ke8 33.Qh5+ Ke7 34.Qh7+ 
{Agreed drawn. Black`s extra pieces are useless, and only blocked the escape route 
of the king. Unfortunately, there is no way to force the king to the f-file, allowing 
the rook to give check at f1. An exciting game!}

1/2-1/2
