[Event "Teton Valley"] [Site "?"] [Round "0"] [White "Schiess, Ervin"] [Black "Cowan, Eugene"] [Result "0-1"] [ECO "A00"] [Opening "Van Kruijs"] 1. e3 e5 2. e4 Nf6 3. Nc3 Bc5 4. Nf3 O-O 5. d3 Ng4 6. Be3 Nxe3 7. fxe3 Bxe3 8. Nxe5 d6 9. Nc4 Bf4 10. Nd5 Qh4+ 11. Ke2 Bg4# 0-1