[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Part A4"] [Black "?"] [Result "*"] [Annotator "Martin Simons"] [PlyCount "16"] [SourceVersionDate "2008.07.23"] 1. f4 Nf6 2. b3 d6 3. Bb2 {The start of Part A} e5 $1 $15 4. e3 {The start of Part A4. If White chooses not to swap off the pawns on move 4, then this allows Black the chance to swap the pawns off with advantage.} exf4 5. exf4 Be7 6. Nf3 (6. g3 O-O 7. Bg2 Re8 8. Ne2 d5 $1 {and Black has lots of free play!}) 6... O-O 7. Be2 Nd5 {An excellent and difficult move to meet as it is not easy to defend the pawn on f4 particularly as} 8. g3 Bh3 {leaves black with an advantage} *