[Event "Chicago-ch"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "?"]
[White "Schiller, Eric Andrew"]
[Black "Zacher, A."]
[Result "1-0"]
[ECO "A80"]
[PlyCount "41"]
[EventDate "1973.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 f5 2. Qd3 d6 3. g4 fxg4 4. h3 Nf6 5. Bg5 g6 6. Bxf6 exf6 7. hxg4 Nc6 8. Bg2 Bg7 9. Rxh7 Kf7 10. Bd5+ Be6 11. Bxe6+ Kxe6 12. Rxg7 Ne7 13. Nc3 Qf8 14. Qc4+ d5 15. Rxe7+ Kxe7 16. Nxd5+ Kd6 17. Qxc7+ Kxd5 18. c4+ Ke4 19. f3+ Ke3 20. Rd1 Qb4+ 21. Kf1 1-0

[Event "US Open-74"]
[Site "Chicago"]
[Date "1973.??.??"]
[Round "1"]
[White "Zacher, A."]
[Black "De Fotis, Gregory"]
[Result "0-1"]
[ECO "B81"]
[PlyCount "48"]
[EventDate "1973.08.12"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "USA"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 d5 8. Bg2 Nxe4 9. Nxe4 dxe4 10. Bxe4 g6 11. Be3 Bg7 12. c3 Nd7 13. Qa4 0-0 14. 0-0-0 Qc7 15. Nb3 Nf6 16. Bf3 Bd7 17. Qa5 Qc8 18. g5 Nd5 19. Bxd5 exd5 20. Qc5 Re8 21. Rh2 Qb8 22. Rdh1 Bf5 23. Nd2 Qd8 24. Rg1 Rc8 0-1

