[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Daatselaar, Jan Bart van"]
[Black "Ypma, Hans"]
[Result "*"]
[WhiteElo "2377"]
[BlackElo "2186"]

1.d4 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Daatselaar, Jan Bart van"]
[Black "Werfhorst, Klaas van de"]
[Result "*"]
[WhiteElo "2377"]
[BlackElo "2176"]

1.d4 Nf6 
2.c4 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Daatselaar, Jan Bart van"]
[Black "Leijen, Peter"]
[Result "*"]
[WhiteElo "2377"]
[BlackElo "2089"]

1.d4 Nf6 
2.c4 e6 
3.Nc3 Bb4 
4.e3 {[%ccsnt 2025.04.20,19:55]} O-O {[%ccsnt 2025.04.21,08:54]} 
5.Bd3 {[%ccsnt 2025.04.21,10:39]} d5 {[%ccsnt 2025.04.22,09:01]} 
6.Nf3 {[%ccsnt 2025.04.22,22:24]} Bxc3+ {[%ccsnt 2025.04.23,10:13]} 
7.bxc3 {[%ccsnt 2025.04.23,22:45]} dxc4 {[%ccsnt 2025.04.24,09:51]} 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Daatselaar, Jan Bart van"]
[Black "Oomen, A. M. J. G. M."]
[Result "*"]
[WhiteElo "2377"]
[BlackElo "1878"]

1.d4 Nf6 
2.c4 e6 
3.Nc3 Bb4 
4.e3 {[%ccsnt 2025.04.20,19:56]} c5 {[%ccsnt 2025.04.24,18:09]} 
5.Nge2 {[%ccsnt 2025.04.24,19:44]} d5 {[%ccsnt 2025.04.24,19:52]} 
6.a3 {[%ccsnt 2025.04.24,22:36]} Ba5 {[%ccsnt 2025.04.25,06:01]} 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Ypma, Hans"]
[Black "Daatselaar, Jan Bart van"]
[Result "*"]
[WhiteElo "2186"]
[BlackElo "2377"]

*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Ypma, Hans"]
[Black "Werfhorst, Klaas van de"]
[Result "*"]
[WhiteElo "2186"]
[BlackElo "2176"]

*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Ypma, Hans"]
[Black "Leijen, Peter"]
[Result "*"]
[WhiteElo "2186"]
[BlackElo "2089"]

*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Ypma, Hans"]
[Black "Oomen, A. M. J. G. M."]
[Result "*"]
[WhiteElo "2186"]
[BlackElo "1878"]

*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Werfhorst, Klaas van de"]
[Black "Daatselaar, Jan Bart van"]
[Result "*"]
[WhiteElo "2176"]
[BlackElo "2377"]

1.d4 Nf6 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Werfhorst, Klaas van de"]
[Black "Ypma, Hans"]
[Result "*"]
[WhiteElo "2176"]
[BlackElo "2186"]

*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Werfhorst, Klaas van de"]
[Black "Leijen, Peter"]
[Result "*"]
[WhiteElo "2176"]
[BlackElo "2089"]

*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Werfhorst, Klaas van de"]
[Black "Oomen, A. M. J. G. M."]
[Result "*"]
[WhiteElo "2176"]
[BlackElo "1878"]

1.d4 Nf6 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Leijen, Peter"]
[Black "Daatselaar, Jan Bart van"]
[Result "*"]
[WhiteElo "2089"]
[BlackElo "2377"]

1.d4 Nf6 
2.c4 e6 
3.Nc3 Bb4 
4.e3 {[%ccsnt 2025.04.21,08:46]} c5 {[%ccsnt 2025.04.21,10:39]} 
5.Bd3 {[%ccsnt 2025.04.22,08:54]} Nc6 {[%ccsnt 2025.04.22,22:25]} 
6.Nf3 {[%ccsnt 2025.04.23,10:11]} Bxc3+ {[%ccsnt 2025.04.23,22:44]} 
7.bxc3 {[%ccsnt 2025.04.24,09:59]} 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Leijen, Peter"]
[Black "Ypma, Hans"]
[Result "*"]
[WhiteElo "2089"]
[BlackElo "2186"]

1.d4 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Leijen, Peter"]
[Black "Werfhorst, Klaas van de"]
[Result "*"]
[WhiteElo "2089"]
[BlackElo "2176"]

1.d4 Nf6 
2.c4 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Leijen, Peter"]
[Black "Oomen, A. M. J. G. M."]
[Result "*"]
[WhiteElo "2089"]
[BlackElo "1878"]

1.d4 Nf6 
2.c4 e6 
3.Nc3 Bb4 
4.e3 {[%ccsnt 2025.04.21,09:12]} c5 {[%ccsnt 2025.04.24,18:08]} 
5.Nge2 {[%ccsnt 2025.04.25,11:04]} d5 {[%ccsnt 2025.04.25,11:35]} 
6.a3 {[%ccsnt 2025.04.26,13:53]} Ba5 {[%ccsnt 2025.04.26,14:19]} 
7.dxc5 {[%ccsnt 2025.04.26,14:24]} dxc4 {[%ccsnt 2025.04.26,14:35]} 
8.Bd2 {[%ccsnt 2025.04.26,16:07]} 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Oomen, A. M. J. G. M."]
[Black "Daatselaar, Jan Bart van"]
[Result "*"]
[WhiteElo "1878"]
[BlackElo "2377"]

1.d4 Nf6 
2.c4 e6 
3.Nc3 Bb4 
4.Qc2 {[%ccsnt 2025.04.23,11:26]} O-O {[%ccsnt 2025.04.23,22:44]} 
5.a3 {[%ccsnt 2025.04.24,17:05]} Bxc3+ {[%ccsnt 2025.04.24,19:44]} 
6.Qxc3 {[%ccsnt 2025.04.24,19:48]} Ne4 {[%ccsnt 2025.04.24,22:35]} 
7.Qc2 {[%ccsnt 2025.04.25,06:00]} 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Oomen, A. M. J. G. M."]
[Black "Ypma, Hans"]
[Result "*"]
[WhiteElo "1878"]
[BlackElo "2186"]

1.d4 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Oomen, A. M. J. G. M."]
[Black "Werfhorst, Klaas van de"]
[Result "*"]
[WhiteElo "1878"]
[BlackElo "2176"]

1.d4 Nf6 
2.c4 
*

[Event "NED/TH/NID F (NED)"]
[Site "ICCF"]
[Date "2025.05.06"]
[Round "-"]
[White "Oomen, A. M. J. G. M."]
[Black "Leijen, Peter"]
[Result "*"]
[WhiteElo "1878"]
[BlackElo "2089"]

1.d4 Nf6 
2.c4 e6 
3.Nc3 Bb4 
4.Qc2 {[%ccsnt 2025.04.23,11:24]} O-O {[%ccsnt 2025.04.24,09:21]} 
5.a3 {[%ccsnt 2025.04.24,17:05]} Bxc3+ {[%ccsnt 2025.04.25,11:24]} 
6.Qxc3 {[%ccsnt 2025.04.25,11:34]} b6 {[%ccsnt 2025.04.26,13:58]} 
7.Bg5 {[%ccsnt 2025.04.26,14:24]} Bb7 {[%ccsnt 2025.04.26,14:30]} 
*

