[Event "Nijmegen Open Gelderland 2018"]
[Site ""]
[White "Boomstra, Roel"]
[Black "Du, Yifu"]
[Annotator "Martin Dolfing"]
[Result "2-0"]
[GameType "20"]
[Round "4"]
[Date "2018.07.24"]
[WhiteTime "1:11:12"]
[BlackTime "0:37:09"]
[TimeControl "4800+60"]
[WhiteUrl "http://toernooibase.kndb.nl/Afbeeldingen/Spelers/3196.jpg"]
[BlackUrl "http://toernooibase.kndb.nl/Afbeeldingen/Spelers/10811.jpg"]
[WhiteTitle "GMI"]
[BlackTitle ""]
[WhiteRating "2398"]
[BlackRating "2104"]
[DamboTopLine "Nijmegen Open Gelderland 2018 Round 4"]
[DamboBottomLine "Boomstra, Roel - Du, Yifu 2-0"]
[FEN "B:W30,31,33,34,35,36,37,38,39,41,42,43,44,45,46,47,48,49,50:B1,2,3,4,5,6,7,8,9,10,11,13,14,15,16,18,19,21,25"] 4. ... 15-20 5. 45-40 07-12 6. 30-24 Liever zo. 15-20 is bijna altijd beter dan 14-20.