[Event "Moscow-ch01 1919/20"]
[Site "Moscow"]
[Date "1919.??.??"]
[Round "?"]
[White "Alekhine, Alexander"]
[Black "Isakov, Konstantin Ivanovic"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "63"]
[EventDate "1919.10.??"]
[EventType "tourn"]
[EventRounds "13"]
[EventCountry "URS"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Nxc3 Bb4 5. Bc4 d6 6. Nf3 Bxc3+ 7. bxc3 Nc6 8. 0-0 Nf6 9. Ba3 0-0 10. e5 Ng4 11. exd6 cxd6 12. Bxd6 Re8 13. Re1 Bf5 14. Bxf7+ Kxf7 15. Qd5+ Kf6 16. h3 Be6 17. Qd2 Nh6 18. g4 g6 19. g5+ Kf7 20. gxh6 Qf6 21. Ng5+ Kg8 22. f4 Rad8 23. Rad1 Bc4 24. Be7 Rxd2 25. Bxf6 Rxe1+ 26. Rxe1 Bf7 27. Ne4 Rxa2 28. Bg7 Bb3 29. Nf6+ Kf7 30. Nxh7 Ra5 31. Ng5+ Rxg5+ 32. fxg5 1-0

[Event "Moscow CC Spring Tournament"]
[Site "Moscow"]
[Date "1907.06.07"]
[Round "4"]
[White "Alekhine, Alexander"]
[Black "Isakov, Konstantin Ivanovic"]
[Result "1-0"]
[ECO "C44"]
[PlyCount "51"]
[EventDate "1907.06.04"]
[EventType "game"]
[EventCountry "RUS"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 f6 5. Bb5 Nge7 6. exd5 Qxd5 7. 0-0 Bd7 8. d4 e4 9. Nfd2 f5 10. Nb3 Ne5 11. Nc5 c6 12. Be2 Bc8 13. Be3 b5 14. Qa5 Nc4 15. Bxc4 Qxc4 16. Nd2 Qd5 17. a4 Ng6 18. f3 Bxc5 19. dxc5 Qd3 20. Bg5 h6 21. Nxe4 hxg5 22. Nd6+ Kd7 23. Rad1 Qe3+ 24. Kh1 Qf4 25. g3 Qxa4 26. Nxb5+ 1-0

