[Event "Lone Pine op"] [Site "Lone Pine"] [Date "1976.03.11"] [Round "5"] [White "Martz, William E"] [Black "Petrosian, Tigran V"] [Result "1/2-1/2"] [GameId "QoZvgBiT"] [WhiteElo "2410"] [BlackElo "2635"] [Variant "Standard"] [TimeControl "-"] [ECO "E79"] [Opening "King's Indian Defense: Four Pawns Attack, Exchange Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 { [%eval 0.1] } 1... g6 { [%eval 0.27] } 2. e4 { [%eval 0.22] } 2... Bg7 { [%eval 0.47] } 3. d4 { [%eval 0.3] } 3... d6 { [%eval 0.37] } 4. Nc3 { [%eval 0.45] } 4... Nf6 { [%eval 0.44] } 5. Be2 { [%eval 0.5] } 5... O-O { [%eval 0.71] } 6. f4?! { (0.71 → 0.00) Inaccuracy. Nf3 was best. } { [%eval 0.0] } (6. Nf3 e5 7. O-O exd4 8. Nxd4 Nc6 9. Be3 Nxd4 10. Bxd4 b6) 6... c5 { [%eval 0.27] } 7. Nf3 { [%eval 0.09] } 7... cxd4 { [%eval 0.55] } 8. Nxd4 { [%eval 0.31] } 8... Nc6 { [%eval 0.36] } 9. Be3 { [%eval 0.36] } { E79 King's Indian Defense: Four Pawns Attack, Exchange Variation } 9... Bd7 { [%eval 0.42] } 10. O-O { [%eval 0.35] } 10... Nxd4 { [%eval 0.35] } 11. Bxd4 { [%eval 0.41] } 11... Bc6 { [%eval 0.37] } 12. Bf3 { [%eval 0.39] } 12... a5 { [%eval 0.5] } 13. c5 { [%eval 0.0] } 13... dxc5 { [%eval 0.12] } { The game is a draw. } 1/2-1/2