[Event "2017 Club Championship"]
[Site "Mechanics Institute"]
[Date "2017-06-08"]
[White "Rodney Jacobs"]
[Black "Peter Lumsdon"]
[WhiteElo "1704"]
[BlackElo "1724"]
[Result "1-0"]

1.e4 c5 2.d4 cxd4 3.c3 Nf6 {(RJ) The No. 2 option on Chessbase, after dc.} 4.e5 {(RJ) book.} Nd5 {(RJ) Book.} 5.cxd4 e6 6.Nf3 Nc6 7.a3 {(RJ) A book alternative. But more usual is Bc4. I liked the look of a3 because it takes the critical square b4 away from three minor pieces.} Be7 {(RJ) Given in Chessbase. By far more usual is d6.} 8.Bc4 {(RJ) Again in book, but with Bd3 much more popular and, I think, better, given Peter's reply.} d6! {(RJ) I assumed Black had to play Nb6, but this sharp move is better.} 9.O-O O-O 10.Qe2 {(RJ) Re1 is an alternative.} Nb6 {(RJ) I had been worrying about 10....Qb6, putting pressure on my d and b pawns. I was pleasantly surprised by this. The Black queen now can't go to b6, and in some lines White has the option of putting the black bishop on e3 or f5.} 11.Bd3 {(RJ) With the idea of 12. ed  Bxd6  13. Bxh7ch.} f5 {(RJ) Which presumably didn't appeal to Peter!} 12.exf6 Bxf6 13.Qe4 {(RJ)  A bit crude, but with the idea of forcing a weakening pawn move, and also helping me quickly to develop my languishing Queenside. The engines like the calm Nc3 better.} g6 14.Bh6 {(RJ) I was pretty happy at this point, but the engines say it's dead even.} Rf7 {(RJ) Stockfish 7 indicates this is an inaccuracy and that Re8 is best. From here on Black has perpetual back rank problems.} 15.Nc3 {(RJ) both my programs prefer Nd2.} d5 {(RJ) I had expected e5.} 16.Qe3 Nc4 {(RJ) The engines prefer Qe7.} 17.Bxc4 dxc4 18.Rad1 Qb6? {(RJ) Probably overlooking White's reply,} 19.Nd5! {(RJ) Taking advantage of Black's weak back rank.} Qb3 {(RJ) The queen becomes badly out of play here for the rest of the game. Better was Qd8 to enable the queen to keep an eye on the kingside.} 20.Nxf6+ Rxf6 {(RJ) Having lost his crucial black bishop, Black is now in trouble.} 21.Qe2? {(RJ) I was very pleased with this, and liked my attacking prospects. But the engines give Nd2! with White's domination of the f file after the exchange of queens being decisive.} Bd7 {(RJ) Best,} 22.Rfe1 Re8 {(RJ) Strangely, White's knight is about to wreak havoc. The engines see this well in advance and agree Black has to do something about it now, by playing Rf5!} 23.Ng5! {(RJ) I noticed that, by a stroke of fortune, all of Black's major pieces were vulnerable to future knight forks and that there was seemingly little Black could now do about it.} Rf5! {(RJ) Best, but too late.} 24.Ne4 Re7 25.Nc5 Rxc5 {(RJ) Forced, in view of 26. Nxd7  Rxd7  27. Qxe6ch} 26.dxc5 e5? {(RJ) A bad mistake. The engines give c3, bringing Black's queen into the game.} 27.Rd6? {(RJ) The engines give the crushing sequence 28. Rxd7  Rxd7  29. Qg4  Re7  30. Re3.....something I did not even consider. Even if I had seen it, I would not have had the courage to try it, with any miscalculation resulting in being mated on the back rank.} Bf5 28.Bg5? {(RJ) Qd2 was much stronger. But I only had 7 minutes now to Peter's 23, and was worried about running out of time.} Rf7? {(RJ) The rook needs to keep defending the e pawn.} 29.Rxc6! bxc6 30.Qxe5 Bd7? {(RJ) Qb7} 31.Bh6! {(RJ) There is no defence to the sac and mate on e8.} {#r}