Your Questions Answered By Andrew Martin
International Master Andrew Martin from England presents a regular series of articles to answer any questions that Chess.com readers have about the game of chess.
If you want to ask Andrew a question, then send an email to askandrew@chess.com and next time your question could be featured! Please include your real name and your chess.com member name, but you can ask to remain anonymous if you wish!
Now it's over to Andrew for this week's questions and answers...
Antonio Pachowko Hi Andrew! I am enjoying your column. My question is this - how common is it to castle the Queenside when playing the French Defence considering the "bad" bishop?
Hi Antonio. The problem of the so-called bad French Bishop is very complex and interesting. Quite often it's the Queen's Bishop which lands the decisive blow for Black!! The French is a difficult and rewarding opening which relies on counterattack for main effect. White is invited to gain space in the centre and then Black hits back with destablizing moves such as ...c7-c5 and ...f7-f6. Castling queenside is common for Black and then the Bc8 can go to either b7, a6 or d7.
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 b6 5.a3 Bxc3+ 6.bxc3 Qd7 7.Nh3 [7.Qg4!] 7...Ba6! This is a typical way of getting rid of Black's poor Bishop. Generally, White has to play sharply in order to gain any advanatge or Black will just take over the c file and the sqaure c4 in particular.
8.Bxa6 Nxa6 9.Nf4?! [Or 9.Qg4 f5; 9.a4 Nb8 10.Nf4 Nc6 11.Qg4 g6 12.h4 h6 13.0–0 Na5 14.Nd3 Nc4 15.Nb2 Ne7 16.Qf3 Nxb2 17.Bxb2 0–0–0 18.c4 Nc6 19.cxd5 Qxd5 20.Qxd5 exd5 21.Ra3 Rd7 ½–½ Lalic,B (2585)-Dizdar,G (2550)/Medulin 1997]
9...0–0–0 There is the castling move, with the Bishop nowhere to be seen! Black will probably play his King to b7,out of range of the White Bishop and aim for ...c7-c5. [RR 9...g6 10.a4 Nb8 11.h4 Nc6 12.Ba3 Nge7 13.Bb4 Rf8 14.0–0 Nxb4 15.cxb4 Nc6 16.c3 Ne7 17.Nd3 Nf5 18.g3 h5 19.Qd2 Rg8 20.Kg2 Qe7 21.Qg5 Qxg5 22.hxg5 Kd7 23.a5 Kc6 24.Rfb1 Garcia Moral Garcia,J (2298)-Reales Murto,M (2281)/Burguillos 2008/CBM 126 Extra/½–½ (53)]
10.a4 Ne7 11.Qd3N [11.a5 would be answered by 11...b5 blocking.; 11.Qe2 Kb7 (11...Nb8 12.a5 Nec6 13.axb6 cxb6 14.Ba3 Na5 15.0–0 Nc4 16.Nd3 Nc6 17.Rfb1 Qc7 18.Qg4 Rhg8 19.h3 Qd7 20.Qh5 h6 21.Bd6 f5 22.Bb4 g5 23.Rd1 Rg7 24.Kh2 Rdg8 25.Qe2 Qf7 26.Ba3 Chandler,M (2585)-Luce,S (2395)/London 1990) 12.0–0 Nc6 13.Nh5 Rhg8 14.Bg5 Rb8 15.Qb5 Ra8 16.Rfb1 Nab8 17.a5 a6 18.Qd3 h6 19.Be3 Qd8 20.c4 dxc4 21.Qxc4 b5 22.Qd3 Qh4 23.Nf4 Rd8 24.c4 Na7 25.d5 g5± Szmetan,J (2365)-Rossetto,H (2465)/Buenos Aires 1972]
11...Nb8 12.a5 Nec6 13.axb6 cxb6 14.0–0 Na5 15.Nh5 Rhg8! 16.Qg3 [16.Qxh7? Rh8–+]
16...Nbc6 This is a strange position but very typical of the French. White's attack has run aground, his Bishop has little to do and now he must face the counterattack. The c file is a big problem for White and there are possibilites of...f7-f6. Nunn takes a risk.
17.Nxg7 Ne7 18.Bh6 Nf5! 19.Nxf5 Forced! 19...Rxg3 20.Nd6+ Qxd6 [20...Kb8? 21.fxg3! f5 22.exf6! Qxd6 23.Bf4+-] 21.exd6 Rg6 22.Bf4 Kb7 23.Be5 Nc4 24.f4 f5! [24...f6 25.f5 exf5 26.Bg3±; 24...Nxd6 25.Bxd6 Rxd6 26.f5]
25.g3 a5 The passed pawn is Black's main trump. It's ironic that White has a very bad Bishop! 26.Kf2?! Nd2! 27.Rfd1 Ne4+ 28.Ke3 Rh6 29.c4 dxc4 30.d5 Nxd6 31.dxe6 Rxe6 32.Kf3 Nf7 Timman defends himself comfortably 33.Rxd8 Nxd8 34.g4 fxg4+ 35.Kxg4 Nc6 36.Bh8 [36.Kf5 Rh6 37.Rh1 b5–+]
36...Re8 37.Bf6 Re2 38.c3 Rxh2 39.f5 Rf2 40.Re1 h5+ 41.Kg5 h4 42.Kg4 h3 43.Bh4 Rd2 44.Kxh3 a4 45.f6 Nd8 46.f7 Nxf7 47.Re7+ Ka6 48.Rxf7 a3 49.Rf8 Rd7 50.Rf1 Ka5 51.Kg4 Ka4 52.Kf5 a2 53.Ke6 Ra7 54.Kd5 Kb3 55.Bf6 a1Q 0–1 Very nice technique from Timman.
In the second game we encounter the main line of the Winawer, where Black's Bishop goes to d7.
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 The sharpest move leading to unfathomable complications
7...cxd4!? 8.Qxg7 Rg8 9.Qxh7 Qc7 10.Ne2 Nbc6 11.f4 dxc3 12.Qd3 Bd7 13.Nxc3 [The alternative was 13.Qxc3 ]
13...a6 14.h4 Nf5 15.Rh3 0–0–0 16.Rb1 Na5 17.Rb4?! My opponent had obviously forgotten the theory. [17.h5]
17...Nc4? Having spent a lot of time, Black chooses the wrong plan. [Simply 17...d4! was stronger. 18.Ne4 Bb5 19.Rxb5 (19.c4?! dxc3 20.Qc2 Nd4! (20...Nc6 21.Rxc3 Bxf1 22.Kxf1) 21.Qf2 Bxf1 22.Nd6+ Kb8 23.Qxd4 Nc6 24.Qxc3 Nxb4 25.Qxc7+ Kxc7 26.Kxf1 Nc6) 19...axb5 20.Nf6 Rh8 21.h5 Nc4 22.g4 Nfe3 23.Be2]
18.h5 [Black was afraid of the beautiful 18.Qxf5!? exf5 19.Nxd5 Qa5 20.Bxc4 Kb8 (20...Be6 21.Ne7+ Kd7 22.Bd2 Qc7 23.Nxg8 Bxc4 24.Nf6+; 20...Rxg2 21.Be3+-) 21.Bd2 Qc5 22.Be3 Qf8 23.Bb6]
18...Qc5? An active, but wrong move. [The correct way was 18...Bc6!? 19.h6 Rg6 20.h7 Rh8] 19.Ne4! Qg1 20.Ng5 Bb5 Black's Bishop comes to life in a big way!
21.Qe2N The wrong move with the right idea. [More accurate was 21.Qf3!? Qc5 22.Qf2; Or 21.Rxb5 axb5 22.h6 Rg6 23.h7 Rh8 24.g4 Rxg5 25.fxg5 Qxg4 26.Qe2 Qd4 27.c3 Qxe5 28.g6 Qg7 29.gxf7 Qxf7 30.Qh5 Qg7 31.Bf4 Ne5 32.Rg3 Nxg3 33.Qxe5 Qxe5+ 34.Bxe5 Rxh7 35.Bxg3 Rf7 Groszpeter,A (2480)-Hagara,E (2329)/Pardubice 1999]
21...Qc5?! Black didn't exploit his chance. [21...Nxa3!? 22.Rc3+ (22.Qf2 Qxf1+ 23.Qxf1 Nxc2+) 22...Kb8 23.Qf2 Qxf1+ 24.Qxf1 Bxf1 25.Kxf1 Nb5 26.Rd3 Rc8]
22.Qf2 Qc7 23.h6 Rxg5 24.h7 A technical decision.
24...Rgg8 25.hxg8Q Rxg8 26.Bd3 Kb8 In the position which has arisen, the only problem for White is that he has no target for attack. 27.Rh7? A bad mistake. [27.g4!?±]
27...Nxa3! Now the position has changed, and neither participant could withstand it. 28.Bxa3?! [28.Bxf5 exf5 29.Bxa3 Qc3+ 30.Qd2 (30.Kd1 Qxa3 31.Rb1 Qa2 32.Rc1 Qc4‚) 30...Qa1+ 31.Qc1 Qc3+ 32.Qd2 Qg3+ 33.Kd1 Qxa3 34.Rb1 Qc5]
28...Qc3+ 29.Qd2 Qxa3 30.Rxf7? Every white move is mistaken, but Black had no time to realize it and to find the winning continuation. [30.Rxb5!? Qa1+ (30...axb5 31.Bxf5 exf5 32.Rxf7) 31.Qd1 Qc3+ 32.Qd2 Qa1+=]
30...Qa1+ 31.Qd1 Qc3+ 32.Qd2 Qa1+? [32...Qc5! 33.Rxb5 axb5 34.Qf2 Ne3 (34...Qc3+ 35.Ke2 Nd4+ 36.Kf1 b4 37.Qe1 Rc8 (37...Qxe1+ 38.Kxe1 Rxg2 39.Kd1) 38.Qxc3 Rxc3 39.Bh7 Nxc2 40.Ke2) 35.g3 Qc3+ 36.Qd2 Nxc2+! 37.Kd1 Qa1+ 38.Qc1 (38.Kxc2 Rc8+ 39.Kb3 d4–+) 38...Ne3+ 39.Kd2 Nc4+ (39...Qa2+ 40.Kxe3 Rxg3+ 41.Kd4 Qa7+ 42.Kc3 Qc5+ 43.Kb2 Qxc1+ 44.Kxc1 Rxd3 45.f5 exf5 46.e6 Re3 47.Rxf5 Rxe6 48.Rxd5=) 40.Bxc4 Qa5+! 41.Qc3 Qxc3+ 42.Kxc3 bxc4–+]
33.Qd1 Qc3+ 34.Qd2 Qa1+ ½–½ To summarize there is no clear answer to Antonio's question. Black often castles queenside in the French; it's obviously more common in the Winawer where White's queenside pawn structure is compromised and where he therefore finds it difficult to open lines effectively. So much for the bad bishop in the two games we have seen. The author is indebted to Vitiugov for his assistance with the notes.
Paul Brown Hi Andrew, I was reading Jeremy Silman's "How to Reassess Your Chess" and came upon the game "Keene-Miles, Hastings 1975/76. At one point in the middle game, Keene sacrifices a Knight and then a Bishop for two pawns. The Knight sacrifice even gets a !. The problem for me is, had I reached the same position in one of my own games, I would not have seen this because I would have been giving away six points for two. How does one realize when such a sacrifice will lead to victory? I'm having a hard time wrapping my feeble mind around this concept. Any advice/ help would be greatly appreciated!
In that case lets take a look at Keene-Miles!
1.Nf3 Nf6 2.c4 c5 3.Nc3 Nc6 4.e3 e6 5.d4 d5 6.cxd5 Nxd5 7.Bd3 cxd4 8.exd4 Be7 9.0–0 0–0 10.Re1 Nf6 11.Bg5 Nb4 12.Bb1 b6 13.Ne5 Bb7 14.Re3 g6 15.Rg3 Rc8N [RR 15...Re8 16.h4 Nc6 17.Rd3 Nd5 18.Bxe7 Ncxe7 19.h5 Nf5 20.hxg6 hxg6 21.Rh3 Nf4 22.Bxf5 exf5 23.Rg3 Qh4 24.Qb3 Re7 25.Nxg6 Nxg6 26.Rxg6+ Kf8 27.Rg3 Rae8 28.Qb4 f4 29.Rh3 Qg5 30.d5 Nikolic,B (2165)-Kizov,A (2355)/Obrenovac 2004/CBM 103 ext/½–½ (47)]
16.Bh6 Re8 17.a3 Nc6 A very standard IQP position and I am sure that Miles thought he was OK here. However the key is to count the number of pieces attacking to the number of pieces defending the Black King. For White I see four pieces Bh6/Bb1/Ne5/Rg3 vs one for Black Nf6. White's Queen is ready to join the action at a moment's notice. If the count exceeds two in the attackers favour, then a sacrifice could well be in the air.
18.Nxg6 hxg6 19.Bxg6 fxg6 20.Qb1!! This is the superb move Miles overlooked. His sense of danger deserted him on that day. Possibly he still imagined a White Bishop on b1 and forgot that the square had been vacated. That seems the most likely explanation to me. [Instead 20.Rxg6+ Kh7 21.Qb1 Nxd4!! 22.Rxf6+ Nf5 23.Rxe6 Rc5 defends for Black.]
20...Ne5 21.dxe5 Ne4 22.Nxe4 Kh7 23.Nf6+ Bxf6 24.Qxg6+ Kh8 25.Bg7+ Bxg7 26.Qxg7# 1–0 Obviously a great game by Keene!
Peter Lamoreaux Hi. I love your instructional materials – I’ve got a lot of them I was hoping you could give a black response to white's 6TH MOVE in the main line scandinavian Qd6 variation 5...a6 6.Bc4 [popular now]. I play this variation and depend on it as my e4 reply. Thank you and keep up the good work!
Anonymous Hi Andrew. In your column on 19 January, you analysed one of your losses with the 3...Qd6 variation of the Scandinavian Defence. I was wondering if you had seen the recent win by Wesley So in Wijk Aan Zee against Manuel Bosboom (Round 11) when he played this variation and if you could comment on the game? Many thanks.
I'll take the two questions together as they refer to the same subject.
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Nf3 [5.Bd3 a6 6.Nge2 Bg4 7.f3 Bh5 8.Bf4 Qb6 9.g4 Bg6 10.g5 Nh5 11.Be3 e6 12.Ne4 Nc6 13.Qd2 Nb4 14.Bc4 Qc6 15.Bb3 a5 16.a3 Nd5 17.Bf2 a4 18.Ba2 Nb6 19.Qd3 Be7 20.h4 h6 21.Rg1 hxg5 22.hxg5 Ra5 23.0–0–0 Rxg5 24.Rh1 Rg2 25.Be3 Rh7 26.Rdg1 Rxg1+ 27.Rxg1 Bf5 28.c4 Nf6 29.N2c3 Rh3 30.Qf1 Kf8 31.Ng5 Rh2 32.Bd2 Qd7 33.Rh1 Rxd2 34.Rh8+ Ng8 35.Bb1 Bxg5 0–1 Howell,D (2622)-Bosboom,M (2418)/Wijk aan Zee NED 2009]
5...a6!? Most players who have taken up the 3..Qd6 variation have told me that they like it. Black's overall plan of laying out his pieces is easy to understand. In recent years the 6 g3 variation has given cause for concern and we see Wesley So employing this critical line right here. Black has to be accurate and I will suggest improvements on Bosboom's play for you to think over.
6.g3 Bg4 7.Bg2 e6 8.0–0 c6!? I know Tiviakov likes such moves, but they seem a little passive to me. [Much more in the spirit of the variation is 8...Nc6! 9.Bf4 (9.h3 Bxf3 10.Qxf3 Qxd4 11.Rd1 Qb6) 9...Qb4! when as far as I can see, Black is OK: 10.a3 (10.Bxc7 Rc8 11.Bf4 (11.a3 Qxb2 12.Na4 Qb5 13.c4 Qh5) 11...Qxb2 12.Na4 Qa3 13.c3 Be7) 10...Qb6! 11.Na4 Qb5 12.Nc3= One of the main points of this line is to bombard d4. Thus 8...c6 is a bit too passive for my liking.]
9.Bf4 Qd8 10.h3 Bxf3 11.Qxf3 Be7 12.Ne2N [RR 12.Rad1 0–0 13.Rfe1 Nbd7 14.Bc1 Qa5 15.a3 Rfd8 16.g4 Nd5 17.Ne4 b5 18.g5 Rac8 19.h4 Qb6 20.b3 b4 21.axb4 Nxb4 22.Ba3 c5 23.dxc5 Nxc5 24.Nxc5 Bxc5 25.c3 Nd5 26.Bxc5 Qxc5 Adhiban,B (2421)-Saurabh,K (2259)/Mumbai 2008/CBM 124 Extra/½–½ (49)]
12...0–0 13.Qb3 Ra7 14.c4 b5 15.Rfc1 Bd6 16.Be5 bxc4 17.Rxc4 Nd5 18.Nc3 Bxe5 19.dxe5 Qg5 20.Re1 White has a solid edge because it's difficult for Black to resolve theproblem of his weak pawn on c6. Bosboom elects to sacrifice it to get his Knight out.
20...Nd7 21.Rxc6 Nxe5 22.Bxd5! exd5 23.Qxd5± Re7 24.Re3 h6 25.Rxa6 A couple of pawns is quite enough
25...Qf5 26.Kg2 Qc8 27.Ra4 Rd8 28.Qb5 Rd2 29.Rxe5 Rxb2 30.Rc5 Rxf2+ 31.Kxf2 Qxh3 32.Ra8+ Kh7 33.Rh5 1–0
As far as 6 Bc4 goes then Black must be very careful that accidents do not occur on the f7 and e6 squares. Lets see a game by Tiviakov in this line where he himself gives detailed notes. Further notes by me are marked ‘AM’.
1.e4 Preparing against Kamsky it was impossible to guess which move he would choose. 1.e4 is equally frequently played as the other moves. During the preparation I had to be ready for the everything...
1...d5 Lot of has been written on Internet about my choice of the 'dubious' Scandinavian Defence in the tournament of the highest level possible. But the reputation of the Scandinavian Defence is much worse than the positions arising in it. What else can be worse than the positions arising in the Dragon where Black can lose by force?! Also the Scandinavian Defence is mostly played by the weak players, that's why the statistics doesn't favour Black, but it doesn't reflect the actual way of life here. And in Wijk aan Zee (the same as in all previous tournaments) Scandinavian served me well, both Anand and Kamsy were not able to get out of the opening even with the equal chances! And at my latest tournament - blitz tournament in Dordrecht on 11/02/2006 - it served well as well, I was equalising without any problem in all games played.
2.exd5 Strangely enough my choice of the Scandinavian came as a full surprise for Gata. He sank into thinking for almost half an hour before making this move. Quite strange, I think. 2...Qxd5 3.Nc3 Qd6 4.d4 Nf6 5.Bc4 Anand played 5.Nf3, but there is no much theory here. White can make any normal move.
5...a6 5...c6 is a worthy alternative. But sometimes the square c6 can be used for the development of the knight.
6.Nf3 Bg4!? Not the only good move in the position but since Kamsky was not ready theoretically I wanted to provoke him playing aggressively by h2-h3 and g2-g4, trying to win this game.
[AM The standard move is 6...b5 but Black has to be very careful now: 7.Bb3 e6 8.0–0 Bb7 (8...Be7! This is the most accurate, maintaining protection of e6 9.Ne5 Bb7 10.Bf4 Qd8 (10...Qb6 11.d5!) 11.Re1 0–0 12.Nxf7 Rxf7 13.Bxe6 Nc6 14.Qf3 Rb8 15.Rad1 Nxd4 16.Bxf7+ Kxf7 17.Qh3 (17.Qd3 c5 18.Bxb8 Qxb8 19.h3 Bd6) 17...Rc8 18.Be5 c5) 9.Re1 Be7 (9...Nbd7 10.Ng5!) 10.Ng5! This is the move that gives the White position impetus after Black has played ...Bb7. Black should consider delaying this move as already suggested 10...0–0 11.Nxe6!]
7.h3 Bh5 8.g4 White has to play this move otherwise it is not easy to get rid of the pin. 8...Bg6 9.Ne5 Here 9.Be3, followed by Qd2, 0–0–0, deserved serious attention. After the text Black develops his knight a tempo.
9...Nc6 10.Nxg6 10.Bf4 Ne5, followed by Qc6 is bad for White.
10...hxg6 11.Be3?! After this move White starts experiencing problems. The correct 11.g5 first should have been played, and only then after 12.Be3. The knight f6 is not only driven from an excellent place f6, but the pawn g4 is not hanging anymore.
11...e5 12.d5N Only this is new, but White position is already worse. [RR 12.Qe2 0–0–0 13.d5 Nd4 14.Qd3 Nxg4 15.Bxd4 exd4 16.Qxd4 Qe5+ 17.Qxe5 Nxe5 18.Be2 Bb4 19.f4 Nd7 20.0–0–0 Bxc3 21.bxc3 Nf6 22.c4 Rh4 23.Rdf1 Ne4 24.Rf3 Rd6 25.Bd3 Nc5 26.Rg1 Rf6 Mocchi,T (2352)-Drobne,M (2062)/Nova Gorica 2001/CBM 080 ext/1–0 (67)]
12...Na5 Probably, this move has been missed by Gata. The knight stands badly on a5, but with concrete play Black wins a pawn.
13.Qe2!? [13.Be2 0–0–0 14.Qd2 Nxd5 15.0–0–0 should have been preferred when White has some compensation for the pawn.]
13...Nxc4 The simplest [13...Qb4?! 14.Bb3 Qxg4 15.hxg4 Rxh1+ 16.Kd2 Rxa1 leads to unnecessary complications.]
14.Qxc4 b5 White can't defend both pawns d5 and g4 simultaneously. 15.Qd3 [15.Qc6+ Qxc6 16.dxc6 Nxg4; 15.Qe2 b4 16.Nb1 Qxd5–+] 15...Nxg4 16.0–0–0 Nf6 [16...Nxe3!? 17.fxe3 (or 17.Qxe3 Be7) 17...f5 was also possible, with advantage for Black.]
17.f4! A very strong move, underestimated by me. White sacrifices the 2nd pawn for the initiative. Otherwise Black would play Bf8-e7 and finish his development easily. 17...exf4?! [Fritz 9 gives 17...0–0–0 as the best move with a large advantage for Black, but during the game I was afraid to make this move.]
18.Ne4 Nxe4 19.Qxe4+ Be7 [19...Kd7?! 20.Bxf4 Rh4 21.Rhf1 unfortunately doesn't work for Black(Black wins after 21.Rd4? Qf6!) ] 20.Bd4?! [After 20.Bxf4 Rh4 21.Bxd6 Rxe4 22.Bxc7 Kd7 Black is clearly better in the ending, but White should have gone for this line, since Black has no material advantage anymore, at least. I was surprised than without much thinking Kamsky made 20.Bd4.]
20...f5 21.Qf3 0–0–0 Black has to castle queen's side. His king is not safe anymore, White gets counterplay. 22.Bxg7?! [After 22.Rhe1 Bh4 (22...Qxd5 23.Qxd5 Rxd5 24.Rxe7 Rhd8 25.Rxg7 Rxd4 26.Rxd4 Rxd4 27.Rxg6 is not clear, White keeps drawing chances in an ending) 23.Be5 Qd7 24.Re2 g5 Black keeps his material advantage.]
22...Rhg8 23.Bc3 b4 24.Be1 g5? A serious mistake which costs Black several tempi. After the correct 24...Rge8! followed by Bf6, Re4, Black should win without much problems.
25.Qd3! I missed this move. Now Black has to spend some time to protect the pawn on f5 and develop the bishop to f6 and rook to e4, worsening the position of king c8.
25...Rgf8 26.Bf2 Kb7 27.Rhe1 Bf6 28.Qf3? After this mistake (Gata was already in time-trouble) Black is again on the winning track. [But even after the strongest 28.Qc4 Rfe8 29.Bc5 Qd7 followed by Qb5 Black should eventually win because of the extra passed pawns on the king's side.]
28...Rfe8 29.Rf1 [Missed by Gata was that 29.Re6 Rxe6 30.dxe6+ Qc6 loses] 29...Re4 The rest should be an easy win for Black, since both of the players didn't have enough time until the time control, there were mistakes, which eventually didn't change the correct outcome of this game.
30.Kb1 Qe5 [30...g4! 31.hxg4 Qe5 32.Qb3 fxg4 is an easy win for Black.] 31.Qb3 a5 32.c3 Qd6 33.a3 Ra8!? Black has so many possibilities, that it is not so easy to choose from. 34.axb4 axb4 35.Rfe1 Rae8 [35...Kc8 36.c4 Qa6 wins easily.]
36.c4 Rxe1!? Here I saw a nice trap for White and decided to go for this line. Other moves were possible. 37.Bxe1 [37.Rxe1 Rxe1+ 38.Bxe1 Qb6 is hopeless for White] 37...Re2 38.Bxb4? Loses by force. [38.Bd2 was better]
38...Qb6 39.c5 Qb5 40.c6+ Kb8! The point of the trap! 40...Kc8 draws, but the text wins easily. [40...Kc8? 41.d6!! cxd6 42.Qg8+=]
41.d6 Rxb2+ 42.Qxb2 Bxb2 43.d7 Now it is without check, Black can play Bf6. 43...Bf6 0–1
AM - Summarizing, 6 Bc4 can be met by either 6..Bg4 or 6...b5, however the latter move will require Black to learn some detailed variations.
