Aquarium Viewer Test Page

This is a test page for working on this game viewer. Currently work in progress.

8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
Clarkeson, A. - Ursal, D.
0-1, 19/09/2011.
[#] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 "With this move the player of the White pieces is signalling his intent to push Black to the very limits. 9.Bc4 always heralds a very sharp and complicated struggle." Intermezzo 9...Bd7 10.O-O-O Qa5!? "This is an interesting sideline of the Yugoslav Attack with it's own devoted band of fanatics. I believe the line was very popular in the 1980's and many of it's devotees latched onto it then and have not been parted from it. It isn't my own choice of variant in this complex labyrinth of lines. I prefer the 'mainline' which continues with 10...Rc8." Intermezzo 11.Kb1 Rfc8 12.Bb3 Ne5 13.h4 Nc4 14.Bxc4 Rxc4 15.Nb3 Qe5!? "Qc7 is an option but a bit slow" DU. "In fact, Rybka gives 15...Qc7 as the mainline here (there are 355 instances of Qc7 in the database I have and 41 games with Qe5) and suggests that after...
[15...Qc7 16.Bd4 Be6 17.g4 a5 18.g5 Nh5 19.Bxg7 Kxg7 the assessment is aproximately equal." Intermezzo]
16.Bd4 Qe6 17.g4 b5 "Also interesting is 17...a5 intending 18... a4 kicking the knight on b3. This is more aggressive and prepares the way for an exchange sacrifice with Rxd4 in the future." DU 18.h5 "There's nothing much wrong with this approach but the only line I could find in my own small library continued instead with...
[18.g5 Nh5 19.Bxg7 Kxg7 20.Rhe1 ...and I think White stands slightly better." Intermezzo]
18...b4 19.Ne2 a5?! "Better is Ba4 to give a retreat square for the queen." DU 20.Nf4 Nxe4?! "I've added the assessment to this move as ultimately the assessment of it is not good. Objectively Black cannot save his queen this way so this isn't the best way to play. However, the game choice turned out well for Black so let's not be too picky." Intermezzo "There was also...
[20...Rxd4 ...but after... 21.Qxd4 Qe5 22.Qxe5 dxe5 23.g5 Nxe4 24.fxe4 Bg4 25.Nd5 Bxd1 26.Rxd1 Bf8 27.h6 ... I'm a piece down and my black squared bishop is become passive. There is also...;
20...Bh6 ... but it will lead to a exchange down on my part without a pair of bishops a no pawn compensation." DU In fact after... 21.Nxe6 Bxd2 22.Nxd2 Bxe6 23.Nxc4 Bxc4 24.Bxf6 exf6 25.Rxd6 Black is both the exchange and a pawn down.]
21.Nxe6? "It would be interesting to understand, from a psycological perspective, why White missed his opportunity here. Did he panic or just get caught up in analysing the chain of forcing moves and miss the way to break it as a result? There was a refutation to Black's play in the form of...
[21.Qg2! Simply stepping away from the threat and leaving the enemy queen with nowhere to go. The resultant position is pretty conclusive after... 21...Nc3 22.bxc3 Rxd4 23.Nxe6 Rxd1 24.Rxd1 Bxe6 The position tells it's own story. All this suggests that 20...Rxd4 probably was the best option available for Black afterall." Intermezzo;
"If... 21.fxe4 Qxe4 ...I'm prepared to have this variation giving me compensation of 3 pawns for a piece." DU]
21...Nxd2 22.Rxd2?? "Andrew followed his mistake with a blunder. It should be...
[22.Nxd2 Rxd4 23.Nxd4 Bxd4 ... I was prepared to give up the exchange but having a pair of bishops and a rook plus a pawn to compensate against his 2 rooks and a knight. His king's side pawn formation is weak and I could create strong central passed pawns in the endgame." DU]
22...Bxe6 23.Bxg7 Kxg7 24.hxg6 fxg6 "24...hxg6 is better." DU 25.Rdh2?! "Better is...
[25.Re2 Kf6 26.Rxh7 Bd5 ... and matters are still unclear." DU]
25...Bg8 26.Nd2 Rf4 27.Re2 e5 28.g5 Rf5 29.Ne4 d5 "At this point Andrew shows his frustration." DU 30.Nd6 Rxg5 31.f4 exf4 "Giving up another pawn was not a good idea but he is taking his chance." DU 32.b3 f3! "I think this move was the exclamation point of a convincing win." DU 33.Rf2 Rf8 34.Rhf1 Rg3 35.Nb5 g5 36.Nd4 g4 37.Kb2 Rf4 38.c3? Rg2! "He just put his king in the line of fire at this point. But I can't see anymore option for him at this point either." DU 39.Kc2 g3 40.Rxg2 fxg2 41.Rg1 Rf2 42.Kd3 h5 43.Ke3 bxc3 44.Ne2 h4 45.Nf4 d4! 46.Ke4 c2 47.Rc1 Rf1 White resigned A complicated and exciting struggle in a major line of the Yugoslav Attack. Andrew missed one tactical chance to secure a winning advnatage but after that Darwin took his opportunity really clinically. A nice win to start the season." Intermezzo [0-1]

No comments: