5+3 • Frisian • CasualSiwardWalinga1989MartenWalinga2238White resigned, Black is victorious1. 31-26 20-25 2. 37-31 14-20 3. 32-27 17x37 ... 20 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalWillem19612050 +6SiwardWalinga1995 −6White is victorious1. 31-26 20-25 2. 34-30 25x34 3. 40x29 19-24 ... 48 moves
8+7 • Frisian • Rated • Open WC Qualifier finalSiwardWalinga1988 +7patou11968 −12White is victorious1. 32-27 20-25 2. 27-22 17x28 3. 33x22 18x27 ... 34 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalSiwardWalinga1985 +3MennoKamminga1697 −3Black resigned, White is victorious1. 32-27 20-25 2. 27-22 18x27 3. 31x22 12x32 ... 39 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalPorter_Richardson1977 ±0SiwardWalinga1986 −1Draw1. 34-30 20-25 2. 33-28 25x34 3. 35x33 19-23 ... 63 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalFolkert-Groenveld2289 +2SiwardWalinga1988 −2Black resigned, White is victorious1. 31-26 20-25 2. 37-31 14-20 3. 32-27 17x37 ... 42 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalSiwardWalinga1979 +9TiesSlagter1997 −8White is victorious1. 32-27 19-24 2. 27-22 17x28 3. 33x22 18x27 ... 51 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalSiwardWalinga1976 +3MennoKamminga1702 −4Black resigned, White is victorious1. 32-27 17-21 2. 31-26 21x32 3. 33x31 20-25 ... 30 moves Computer analysis available
8+7 • Frisian • Rated • Open WC Qualifier finalSiwardWalinga1985 −9TiesSlagter1985 +8Black is victorious1. 32-27 19-24 2. 27-22 17x28 3. 33x22 18x27 ... 38 moves Computer analysis available
3+0 • Frisian • RatedSiwardWalinga1989 −4LaPerchPsa2211 +3Time out, Black is victorious1. 32-27 17-21 2. 31-26 21x32 3. 33x31 16-21 ... 47 moves
3+0 • Frisian • RatedLaPerchPsa2208 +3SiwardWalinga1993 −4White is victorious1. 31-26 19-24 2. 34-30 20-25 3. 30x19 18x20 ... 58 moves
1.5+0 • Frisian • RatedSiwardWalinga1997 −4LaPerchPsa2205 +3White resigned, Black is victorious1. 31-26 20-25 2. 32-27 14-20 3. 37-31 17x37 ... 26 moves