Loek van Wely vs Zdenko Kozul (2015) Crosstown Traffic

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Loek van Wely vs Zdenko Kozul
"Crosstown Traffic" (game of the day Nov-10-2018)
European Team Championship (2015), Reykjavik ISL, rd 2, Nov-14
King's Indian Defense: Orthodox Variation. Positional Defense (E94) · 1-0

ANALYSIS [x]

FEN COPIED

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Nov-15-15		Stonehenge: VW missed 59. Rxg7+ Kxg7 60. Qb3 and black can give up.

Nov-15-15		Mehem: White also missed (or underestimated) 32.Ng1! click for larger view and Black loses the bishop.

Nov-10-18		al wazir: What was wrong with 70...Bxc4 ?

Nov-10-18		Ironmanth: Wow. Can't say I understand this very much; back to the drawing board! Hope all are enjoying Khanty Mansiysk, London, and Kolkata. Play on, my fellow chess lovers!

Nov-10-18		catlover: Strange how for about eight moves, after Kozul played 15...Bh3, white just left his F1 rook hanging.

Nov-10-18		Sargon: <catlover: Strange how for about eight moves, after Kozul played 15...Bh3, white just left his F1 rook hanging.> After 16. Bxh5, if 16...Bxf1 then something like 17. Bxg6 fxg6 18. Nxg6 Qf7 19. Nxf8 Rxf8 20. Rxf1 and Black's kingside is blown apart?

Nov-10-18		cunctatorg: This game is quite interesting and I'l like to see the kibitzers with the extremely strong "seconds" to shed plenty of light here; where GM Kozul went wrong?

Nov-10-18		catlover: Makes sense. Thanks, <Sargon>.

Nov-10-18		Breunor: I also don't understand why both players left the positon where the bishop can take the rook on f1 for so many moves; I can see the computer scores and moves but they don't give a why! As a matter of fact I don't really understand anything in this game! Al Wazir, black is lost regardless but Stockfish doesn't like 70 .. Bxc4: 1) +7.71 (23 ply) 71.Ne8 Kg8 72.Nxf6+ Kf8 73.Rh7 Bd3 74.Bxh6+ Rxh6 75.Rxh6 e4 76.Kb2 e3 77.Nh5 e2 78.Rf6+ Kg8 79.Re6 Ba6 80.Kc3 Bc8 81.Rxe2 Kf7 82.f6 Kf8 83.Re7 c4 84.Kxc4 Ba6+ 85.Kb3 Although the 'best' move isn't that wonderful either: 1) +4.43 (22 ply) 70...Rh1 71.Kb2 Rh2+ 72.Kb3 Rh3 73.Ne8 Bxf5+ 74.Ka4 Bd3 75.Nxd6 Rh1 76.Ba3 e4 77.Bxc5 Ra1+ 78.Kb4 Rxa7 79.Bxa7 Kg8 80.Be3 Kf8 81.c5 Ke7 82.Bxh6 Be2 But Stockfish thinks black started to slip with 10 c5: 1) +1.15 (20 ply) 11.Nd2 Ne8 12.Rae1 b6 13.f3 Nef6 14.g3 Bb7 15.Bd3 Rfd8 16.Kg2 Qf8 17.a3 Rac8 18.Bg5 h6 19.Be3 Qe7 20.b4 Better was 10 Nh5 1) +0.47 (20 ply) 10...Nh5 11.Rfd1 Nf4 12.Bf1 cxd5 13.Bxf4 exf4 14.Nxd5 Qd8 15.Nxf4 Nc5 16.b4 Ne6 17.Nxe6 Bxe6 18.Rac1 Qe7 19.Qd2 Rad8 20.h3 Rfe8 21.a3 a6 22.a4 Qf6 23.a5 Bd7 Black doesn't have a great opening but things start going real bad with 13 Ng6; the whole Ng6-c8-e7 maneuver looks elaborate. Best is 13 Ndf6 1) +0.75 (20 ply) 13...Ndf6 14.Kg2 Qd7 15.Ng1 Ne8 16.Rae1 Nhf6 17.h3 Nc7 18.a3 b6 19.Qc1 Kh7 20.Be3 Rg8 21.b3 Rb8 22.b4 a5 23.b5 Qd8 24.Qc2 He's already down quite a bit; after Nb6 we have: 1) +1.30 (20 ply) 14.Kg2 Qd8 15.a4 Bd7 16.a5 Nc8 17.h3 Ne7 18.Nh4 Nf6 19.Rh1 Kh7 20.a6 b6 21.b3 Qc7 22.Be3 Qd8 23.Nf3 Rg8 24.Qd2 Qc8 An error is 15 Bh3: 1) +1.77 (20 ply) 16.Bxh5 Bxf1 17.Rxf1 Nxc4 18.Be2 Nxd2 19.Qxd2 a6 20.a4 Rab8 21.Ng2 Qd8 22.Ra1 Qg5 23.Qxg5 hxg5 24.Ne3 f5 25.Nc4 Rbd8 26.Na5 fxe4 27.Nxb7 Better is Bxe2: 1) +1.02 (22 ply) 16.Nxe2 Qd7 17.f3 Qh3 18.Be3 Rad8 19.b3 Kh7 20.Nc3 a6 21.Ng2 Nf6 22.Rbe1 Rg8 23.Nd1 Rde8 24.Nf2 Qc8 25.Bd2 Nbd7 26.Bc3 However white gives up much of lead and gets it back on several moves. There does nto appear to be an 'Aha this is the move' but a series of 'not best' moves that give white a +2 type advantgege by move 30.

Nov-10-18		offramp: I think that there is an error in the score: I don't think that rook on f1 was en prise for all those moves.

Nov-11-18		al wazir: <Breunor: I also don't understand why both players left the positon where the bishop can take the rook on f1 for so many moves; I can see the computer scores and moves but they don't give a why!> I think both players figured that the ♗ on h3 was worth more than an immobile ♖. (But when white finally played 22. f4, preparing to mobilize the ♖, this was no longer true; at that point I would have played 22...Bxf1.) <Stockfish doesn't like 70 .. Bxc4: 1) +7.71 (23 ply) 71.Ne8 Kg8 72.Nxf6+ Kf8 73.Rh7 Bd3 74.Bxh6+ Rxh6 75.Rxh6 e4 76.Kb2 e3 77.Nh5 e2 78.Rf6+ Kg8 79.Re6 Ba6 80.Kc3 Bc8 81.Rxe2 Kf7 82.f6 Kf8 83.Re7 c4 84.Kxc4 Ba6+ 85.Kb3.> Thanks! That computer analysis makes it quite obvious. Apparently both players saw it without using an engine.

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