Parties de Jongsma, Alexander

• Jongsma,+Alexander vs Bronstein,+David+I IBM 1968. . 1-2-1-2
• Gaprindashvili,+Nona vs Jongsma,+Alexander Hoogovens-B 1969. . 1-0
• Geller,+Efim+P vs Jongsma,+Alexander IBM 1970. . 1-0
• Gligoric,+Svetozar vs Jongsma,+Alexander IBM 1970. . 1-2-1-2
• Jongsma,+Alexander vs Hort,+Vlastimil IBM 1970. . 0-1
• Ivkov,+Borislav vs Jongsma,+Alexander IBM 1968. . 1-2-1-2
• Jongsma,+Alexander vs Kavalek,+Lubomir IBM 1968. . 0-1
• Jongsma,+Alexander vs Kavalek,+Lubomir The+Haag 1968. . 0-1
• Kotov,+Alexander vs Jongsma,+Alexander IBM 1968. . 1-0
• Polugaevsky,+Lev vs Jongsma,+Alexander IBM 1970. . 1-0