[Event "JPN Colts1 email"]
[Site "ICCF email"]
[Date "2012.06.01"]
[Round "?"]
[White "Kanasaka, Ritsu"]
[Black "Oka, Akifumi"]
[Result "1-0"]
[ECO "B00"]
[PlyCount "43"]
[EventDate "2012.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 Nc6 4. Bd3 e5 5. dxe5 dxe5 6. Bg5 h6 7. Bh4 g5 8. Bg3 Bc5 9. Nf3 Rg8 10. 0-0 Be6 11. Qe2 Ne7 12. Bxe5 Nfd5 13. exd5 Bf5 14. Bxf5 Nxf5 15. Qd3 Qd7 16. Nb5 0-0-0 17. c4 g4 18. Nfd4 g3 19. Nxf5 Rg5 20. Nxg3 Qg4 21. Bf6 Rd7 22. Bxg5 1-0

[Event "JPN Colts1 email"]
[Site "ICCF email"]
[Date "2012.06.01"]
[Round "?"]
[White "Oka, Akifumi"]
[Black "Fujiwara, Josuke"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "50"]
[EventDate "2012.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.12"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.12"]
[SourceQuality "1"]

1. c3 Nf6 2. e3 d5 3. Ne2 e5 4. d4 Nc6 5. dxe5 Nxe5 6. Nd4 Bd6 7. Nd2 0-0 8. N2f3 c5 9. c4 cxd4 10. Qb3 Nxf3+ 11. gxf3 Re8 12. Rg1 Bxh2 13. Rg5 Bf4 14. Qd3 Bxg5 15. Qxd4 Qb6 16. Bd2 Qxd4 17. 0-0-0 Qb6 18. f4 Bh6 19. f3 Be6 20. e4 Rac8 21. Kb1 dxc4 22. e5 Nd7 23. Bg2 Nc5 24. Rc1 Na4 25. f5 Qxb2# 0-1

[Event "JPN Colts1 email"]
[Site "ICCF email"]
[Date "2012.06.01"]
[Round "?"]
[White "Oka, Akifumi"]
[Black "Miyata, Kazunori"]
[Result "0-1"]
[ECO "A07"]
[BlackElo "1683"]
[PlyCount "38"]
[EventDate "2012.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d3 d5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 d4 5. c3 dxc3 6. bxc3 g6 7. 0-0 Bg7 8. e4 Nd7 9. Be3 Nde5 10. d4 Nxf3+ 11. Qxf3 0-0 12. Rd1 b6 13. Na3 Ba6 14. d5 Ne5 15. Qf4 Qc8 16. f3 Qb7 17. Rd2 Rad8 18. Qh4 Rfe8 19. Rf1 Bxf1 0-1

[Event "JPN Colts1 email"]
[Site "ICCF email"]
[Date "2012.06.01"]
[Round "?"]
[White "Oka, Akifumi"]
[Black "Sugimura, Keiko"]
[Result "0-1"]
[ECO "A00"]
[PlyCount "56"]
[EventDate "2012.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. h4 Nf6 2. e3 e5 3. d4 exd4 4. Qxd4 Nc6 5. Qd3 d5 6. f4 Bg4 7. Nf3 Nb4 8. Nc3 Nxd3+ 9. Bxd3 Bd6 10. Bd2 0-0 11. 0-0-0 c6 12. Rdf1 a5 13. Ng5 Bb4 14. h5 d4 15. h6 dxc3 16. Bxc3 Bxc3 17. Nxh7 Bxb2+ 18. Kxb2 Qb6+ 19. Kc1 Rfd8 20. Nxf6+ gxf6 21. h7+ Kh8 22. Rh4 Qxe3+ 23. Kb1 Be2 24. Rf3 Qg1+ 25. Kb2 Bxd3 26. Rg3 Qb6+ 27. Kc1 Bxc2 28. Rhg4 Qb1# 0-1

[Event "JPN Colts1 email"]
[Site "ICCF email"]
[Date "2012.06.01"]
[Round "?"]
[White "Saitou, Tomoe"]
[Black "Oka, Akifumi"]
[Result "1-0"]
[ECO "A46"]
[PlyCount "47"]
[EventDate "2012.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[EventCountry "JPN"]
[SourceTitle "Corr 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.19"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.19"]
[SourceQuality "1"]

1. d4 a6 2. Nf3 Nf6 3. Nc3 Nc6 4. Bf4 d5 5. e4 e5 6. exd5 Nxd4 7. Nxd4 Bd6 8. Qe2 0-0 9. 0-0-0 c5 10. Bxe5 Bg4 11. f3 c4 12. fxg4 Nxd5 13. Nxd5 b5 14. Nf5 Qg5+ 15. Kb1 a5 16. Bxd6 Rfe8 17. Qf2 Qxg4 18. Qf3 Re4 19. Qxg4 g6 20. Qxe4 c3 21. Nxc3 b4 22. Nd5 a4 23. Nf6+ Kh8 24. Qxa8# 1-0

