[Event "WLCC GM Smul"] [Site "Chiswick Town Hall"] [Date "2005.05.18"] [Round "?"] [White "Tony Bynnersley"] [Black "Alexander Cherniaev"] [Opening "Sicilian: Pelikan/Sveshnikov"] [Result "1-0"] [ECO "B33d"] 1.e4 c5 {Some commentary and computer analysis by Ed.} 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nb3 {It's all book moves up to to this point.} Bb4 7.Bd3 d5 {Clearing the way for King-side castling. Computer: Bd2 is slightly better, followed by Bxc3 8.Bxc3 Nxe4 9.Qg4 Nxc3 10.Qxg7 and Black's King is exposed.} 8.O-O Bxc3 9.bxc3 dxe4 10.Be2 Qxd1 {This Queen exchange was not advantageous for Black. Castling would have been better.} 11.Rxd1 {White now controls the open d file.} O-O 12.a4 {Bg5 is slightly better as Bxf6 would weaken Black's King-side pawn structure.} b6 13.Ba3 Re8 14.Bb5 Bb7 15.Rd6 Rec8 16.Rad1 h6 {Provides safety from back-rank mate and therefore allows the rooks to move more freely.} 17.h3 Rc7 18.a5? {This loses a pawn. The computer suggests c4 is better.} Nxa5 19.Nxa5 bxa5 20.Bb2 a6 21.Bf1 Bc6 22.c4 Rcc8? {Black loses much advantage. Better is Ne8, followed eventually by f6.} 23.Bxe5 a4? {Black loses more advantage! Ne8. White has the initiative...} 24.Bxf6 {Damaging the King-side pawn structure and gaining a pawn.} gxf6 25.Rxf6 Rab8? {Kg7 is better. Black will lose another pawn soon.} 26.Rdd6 a3? {Black miscalculates and loses the Bishop. The pawn cannot be made to Queen. Be8 is better.} 27.Rxc6 Rxc6 28.Rxc6 a5? {Black is lost. Ra8 would have been better.} 29.Ra6 a2 30.Rxa5 Rb2 31.c5 Rxc2 32.c6 {White is a Bishop up after the exchange and Black has a fragmented pawn structure. Black resigns.} 1-0 [Event "WLCC GM Smul"] [Site "Chiswick Town Hall"] [Date "2005.05.18"] [Round "?"] [White "Alexander Cherniaev"] [Black "Colum Jezierski"] [Opening "Pirc"] [Result "0-1"] [ECO "B07d"] 1.e4 {Some computer analysis added by Ed.} d6 2.d4 a6 {This takes the game out of the opeining book early.} 3.Bd3 e5 4.c3 Be7 5.Ne2 Bg5 6.O-O Nc6 7.f4 Bh6 8.d5 Nce7 9.fxe5 dxe5 10.Ng3 Ng6 11.Nd2 Be3+ {Thought hard about Nf6 -this used up a 'pass'. The computer shows little advantage between the two options, although it prefers Qe7.} 12.Kh1 Nf6 13.Qf3 {Nf5 is slightly better, followed by Bxf5 14.Rxf5 Qe7 15.Nc4.} Bf4 14.Nf5 Bxf5 15.exf5 Nh4 16.Qh3 {Computer: Qe2 is slightly better with c4 and g3 to follow shortly.} Nxd5 {Thought about Qxd5. Computer: This leads to an interesting line of play: Qxd5 is followed by 17.Nb3 Nxg2 18.c4 Qd7 19.Kxg2 Bxc1 20.Raxc1 O-O-O. 21.Be2 Qa4. Although Black is a Bishop down, Black has two pawns and a good position as compensation whereas White's King is exposed and White has two isolated pawns.} 17.f6? {This just loses a pawn. Be4 is better.} Nxf6 {If Qxh4, Qxd3.} 18.Nc4 O-O {This effectively gives back the pawn. Better is Bxc1 then e4.} 19.Bxf4 exf4 20.Rxf4 Ng6 21.Rff1 Qd5 22.Rf5 Qe6 23.Qg3 Rad8 24.Raf1 Rfe8 {b5 looks a tad better.} 25.h3? {Oops, this leads to b5 then Qxa2. b3 is better.} b5 26.Na5? {This leads to Qb6 threatening the Night and a fork with Re3. White's best response is Rxf6 followed by Bxg6. Black misses the opportunity though.} Qd6 {As mentioned, either Qxa2 or Qb6 would have been better. Black is still ahead though.} 27.Qxd6 Rxd6 28.Bc2 Rd2 29.R5f2 Ree2 30.Rxe2 Rxe2 31.Bb3 {Bxg6 is better, the exchange disrupting Black's pawn structure.} h6 32.Nc6 Rxb2 33.Nd8 Ne5 34.Re1 Nc4 {Thought about Rd2. Computer: Leads to 35.Rxe5 Rxd8 36.Rc5 Rd7. Nc4 _is_ better.} 35.Re7 Nd5 {The following sequence of 7/8 moves ends up losing material advantage, allowing White back into the game. Now, Rd2 would have been better as it leads to 36.Nc6 Nd5 37.Re8+ Kh7 38.Rd8 f6 39.Nb4 Nxb4 40.Rxd2 Nxd2 41.cxb4 Nxb3 42.axb3 and Black has a winning endgame.} 36.Rxf7 Nde3 37.Rxc7 Rb1+ 38.Kh2 Nf1+ 39.Kg1 Nd2+ 40.Kh2 Nxb3 41.axb3 Rxb3 42.Ne6 a5 43.Rxg7+ Kh8 44.h4? {The game is quite even at this point. Rb7 would have prevented the loss of a pawn.} Rxc3 45.h5 Re3 {b4 or Ne5 is better. This should lead to 46.Rg6 Ne5 47.Rxh6+ Kg8. 48.Kg1 Ra3 and there is still play left in the game.} 46.Re7? {Disaster, a self-pinning move!} Nd6 {Prevents check. With the Rook and Night pinned, the connected passed pawns on a5 and b5 are free to Queen. White resigns.} 0-1 [Event "WLCC GM Smul"] [Site "Chiswick Town Hall"] [Date "2005.05.18"] [Round "?"] [White "Ed Tandi"] [Black "Alex Cherniaev"] [Opening "King's Indian: Smyslov System"] [Result "0-1"] [ECO "E61x"] 1.d4 {Commentary and computer analysis by Ed.} Nf6 2.Nf3 g6 3.c4 Bg7 4.Nc3 O-O 5.Bg5 c5 6.e3 d6 7.Be2 Na6 8.a3 {Here I didn't like the idea of Nb4, but this would be a wasted tempo for black because a3 chases it away again. So this move is effectively a wasted tempo for white, better is O-O to continue natural development in this position.} Bf5 9.O-O Ne4 10.Nxe4 Bxe4 11.Bd3 Bxf3 12.Qxf3 Rb8 {At this point, I have a slight advantage. Black's plan is to gain a pawn by cxd4, exd4 then Bxd4 threatening b2.} 13.Qe4 {To reinforce d4, d6-d5 is no good for black and f7-f5 would be met by Qe6+. The computer reckons Rad1 would have been better as Bxd4 would be met with Bxg6, weakening the Black King's defences.} Re8 {But I still have a slight advantage with 14.Bc2 cxd4 15.exd4 Qb6 16.b4 Bxd4 17.Rad1 e5 18.Be3.} 14.Rab1 Qb6 15.h4 {The idea here is to put pressure on Black's King, which is low on defense. I did think about d5 and the computer thinks it is better. Bxb2 only pins Black's queen and would be followed by Rfd1 and eventually Rxb2.} cxd4 16.b4 {Stops the nasty fork Nc5.} e6 17.h5 {Continuing with the planned King-side offensive.} Nc7 {Black is forced to respond and bring the Night back into play.} 18.h6 Bh8 19.Qf3 {The idea here is to force an exchange of dark-squared Bishops, followed by Qf6 -then Black would be in some trouble with the threat of Qg7#! Unfortunately, I missed the effectiveness of f5. Qh4 would have been better.} f5 {Black first played another move, but came back and corrected it. Damn! Aparrently, it's allowed in Sumuls.} 20.e4 {An attempt to open the f-file, but this move gives Black a passed pawn which has consequences in the endgame. Rfc1 would have been better.} Qc6 {Effectively pinning the pawn -an exchange of Queens would leave White's King-side pawn structure in disarray.} 21.Rfe1 Qd7 22.Rbc1 {Missed winning opportunity! The computer suggests: 22.exf5 exf5 23.Rxe8+ Qxe8 24.c5 now the Black King becomes exposed... d5 25.Bf4 Qf7 26.Bxc7 Qxc7 27.Qxd5+ Qf7 28.Qd6 Rf8 29.c6 Bf6 30.cxb7 Qe8 31.Rc1 and the end is nigh!} f4? {This looks like a mistake.} 23.Qxf4 e5 24.Qg3 Ne6 25.f4 {I should have kept the Bishop, which is needed to protect the pawn on h6. Bd2 would have been much better.} exf4 26.Bxf4 Nxf4 27.Qxf4 Be5 28.Qg5 Qe7 {The game at this point is still fairly eaven, although Black now has a slight edge with the passed pawn.} 29.Qg4 {The computer recommends Qxe7, which leaves White in the driver's seat.} Qf8 {Black now takes the initiative and starts to leverage the advantage of the passed pawn...} 30.Qh3 Qf4 31.Rf1 Qe3+ 32.Qxe3 dxe3 {The pawn is now only two moves from promotion and is easily protected with the Bishop.} 33.Rf3 Rf8 34.Rcf1 {c5 would have been better. The subsequent exchange of both Rooks leaves h6 unprotected. The pawn is lost.} Rxf3 35.Rxf3 Rf8 36.Rxf8+ Kxf8 37.g4 Bf4 38.Kg2 {Much better is c5 -getting a passed pawn the c-file and keeping the Black King busy on the other side of the board.} b6 39.Kf3 Bxh6 40.Bc2 {This is where I choose the wrong strategy. I decided to chase pawns with my Bishop rather than looking for a way of advancing my own pawns. e5 would have been better, followed by dxe5 41.Ke4 Bf4 42.Be2 Ke7 43.Kd5 Kd7 44.c5 bxc5 45.bxc5 Bg3 46.a4 Kc7 47.a5 h6 48.Bf3 Kd7 49.Be2 Bf4 and neither side can progress. The game is drawn.} Ke7 41.Ba4 {The game is all downhill from here. Oh well, I've learnt something at least.} Kf6 42.Bc6 Bg5 43.Bd5 Ke5 44.Bg8 h5 45.gxh5 gxh5 {Black can now start to use the principle of two weaknesses as there are now two passed pawns. If I had kept the Bishop at e2, this exchange wouldn't have happened.} 46.Bh7 h4 47.Bf5 Kd4 {Black's found a third weakness. I'm going to lose another pawn. The end is nigh...} 48.c5 dxc5 49.bxc5 bxc5 50.Ke2 c4 51.Kd1 Ke5 52.a4 Kf4 53.a5 Kg3 54.e5 Kf2 55.e6 e2+ 56.Kc2 e1=Q {White resigns.} 0-1