[Event "US Open"] [Site "Chicago (IL)"] [Round "6.36"] [White "Schlagenhauf M"] [Black "Buckendorf Glen (ID)"] [Result "1/2-1/2"] [ECO "E41"] [Opening "Nimzo-Indian: 4.e3 c5"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 cxd4 6. exd4 O-O 7. a3 Be7 8. d5 d6 9. Ng3 Nbd7 10. Be2 exd5 11. cxd5 Ne5 12. O-O Bg4 13. Be3 a6 14. Qb3 b5 15. a4 bxa4 16. Nxa4 Qb8 17. Nb6 Bd8 18. Ra3 Bxb6 19. Bxb6 Nxd5 20. Qxd5 Qxb6 21. Rfa1 Be6 22. Qe4 Qxb2 23. Rxa6 {#d} 1/2-1/2