[Event "Southsea"] [White "Thomas,Andrew RB"] [Black "Penrose,Jonathan"] [Site "Southsea"] [Round "2"] [Annotator "Smith,Peter"] [Result "0-1"] [Date "1950.??.??"] [PlyCount "70"] 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Bg5 c5 {We have a form of the QGD Semi-Tarrasch Defence where white has omirred or delayed Nf3.} 5. e3 (5. cxd5 exd5 6. Bxf6 Qxf6 7. Nxd5 Qd8 8. dxc5 Bxc5 $16 {is better for White. He is a Pawn up and Black's two Bishops do not give him enough compensation.} )cxd4 6. Qxd4 $15 {Black could have gained an advantage after this. The exposure of the White Queen to Nc6 gives Black an initiative.} ({instead} 6. exd4 dxc4 7. Bxc4 Be7 {with equality.} )Be7 (6... Nc6 { at once as indicated would be better for Black.} )7. Rd1 $6 { Giving Black another chance to play Nc6 which he does.} (7. cxd5 exd5 8. Rd1 Be6 {and Black has the isolated Quenn's Pawn.} )Nc6 8. Qd2 dxc4 9. Qxd8+ Bxd8 10. Bxc4 Ba5 11. Bxf6 $2 {An unsound positional move. Conceding the two Bishops to Black is not good and the damage to Black's Pawn structure actually benefits Black, giving him a lovely g-file to operate his Rooks on and making Kingside castling uncomfortable for White. White should rather play Nf3 and castle.} gxf6 12. Nge2 Ne5 13. Bb5+ Ke7 {Black's King is very safe here.} 14. 0-0 $2 {White's King is unsafe here with the semi-open g-file.} a6 15. Ba4 Rg8 {Black now just needs to bring his light squared Bishop into play and White will have a bad time. Black is probably already winning.} 16. Bc2 Bd7 $1 17. Nd4 {to cover f3.} (17. Bxh7 {is of no use as} Nf3+ 18. Kh1 Rh8 19. gxf3 Rxh7 { followed by moves like Bc7, Bc6 and Rah8 with a menacing attack.} )f5 18. Nce2 Nc4 19. Nf4 b5 ({Not} 19... Nxb2 $2 20. Rb1 )20. b4 { This sets a little trap but Penrose sees there is nothing to fear.} Bxb4 $1 21. Nxf5+ Ke8 ({Obviously not} 21... exf5 $2 22. Nd5+ $11 )22. Nh6 Rf8 23. Bxh7 { White speeds up his own demise.} Rh8 24. Be4 Rd8 25. Ng4 {Eyeing f6} Bc3 { Preventing Nf6 but missing the finishing blow Black is comfortably winning still. The two Bishops dominate, He has a potential pased pawn on theQueenside, Open files for his Rooks bearing down on White's King, a well posted Knight on c4 and White's Knight on g4 has nowhere to go.} (25... Nd2 $1 26. Nf6+ Ke7 27. N6d5+ exd5 28. Nxd5+ Ke8 29. Nxb4 Nxe4 30. Nxa6 Nc3 $19 )26. Bd3 f5 $2 { Striking at the loose Knight but as Computer analysis shows this is a blunder that could have let White back into the game.} 27. Bxc4 { Luckily White misses his chance and Black now finishes off nicely.} (27. Rc1 Bb2 28. Rc2 Bg7 29. Ng6 fxg4 30. Nxh8 Ne5 (30... Bxh8 31. Bxc4 bxc4 32. Rxc4 { is actually better for White.} )31. Be2 Bxh8 32. Rfc1 {is more or less equal.} )bxc4 ({Disaster would enfold Black with this move} 27... fxg4 28. Bxe6 { winning for White.} )28. Ng6 fxg4 $1 29. Nxh8 Bxh8 30. f3 c3 31. fxg4 c2 { White's Rooks are helpless against the c pawn and are no match for Black's Bishops.} 32. Rd2 Ba4 33. Rxd8+ Kxd8 34. g5 Bb2 35. g6 Ke7 { White's Pawn won't succeed in its mission whereas Black's will!} 0-1