Saragossa Opening vs Dutch Leningrad (A00) 1/2-1/2 H Lieff vs J Dueball, 1981 (A00) Uncommon Opening, 17 moves, 1/2-1/2 Polish Opening: Czech Def (A00) 0-1 Pawn issues H Westerinen vs J Dueball, 1973 (A00) Uncommon Opening, 50 moves, 0-1 Hungarian Opening/Na3 Reti (A00) 1/2-1/2 Quick agreement A Zwaig vs J Dueball, 1969 (A00) Uncommon Opening, 14 moves, 1/2-1/2 $Double King Pawn Big Clamp 0-0 vs 0-0-0 (B00) 1-0 P grabs J Dueball vs R Cassidy, 1974  (B00) Uncommon King's Pawn Opening, 42 moves, 1-0 Uncommon/3 Pawns Attk vs Pirc Def (B00) 1-0 J Dueball vs R Hartoch, 1969 (B00) Uncommon King's Pawn Opening, 81 moves, 1-0 Alekhine Def. Scandinavian Var (B02) 0-1 Overloaded Defender J Dueball vs B Jansson, 1969 (B02) Alekhine's Defense, 31 moves, 0-1 Alekhine Defense: Modern. Schmid Variation (B04) · 1-0 J Dueball vs L Ogaard, 1973 (B04) Alekhine's Defense, Modern, 64 moves, 1-0 Modern Defense: Pseudo-Austrian Attack (B06) · 0-1 J Dueball vs A Matanovic, 1969 (B06) Robatsch, 46 moves, 0-1 Modern Defense: Pseudo-Austrian Attack (B06) 1/2-1/2 J Dueball vs I Bilek, 1970 (B06) Robatsch, 33 moves, 1/2-1/2 Pirc Defense: Classical. Quiet System Chigorin Line (B08) 1/2 J Dueball vs Keene, 1971  (B08) Pirc, Classical, 8 moves, 1/2-1/2 Pirc Defense: Classical. Quiet System Czech Def (B08) 0-1 J Dueball vs A Planinc, 1974 (B08) Pirc, Classical, 40 moves, 0-1 Pirc Defense: Austrian Attack. Dragon Formation (B09) 1/2-1/2 J Dueball vs G Sigurjonsson, 1975 (B09) Pirc, Austrian Attack, 22 moves, 1/2-1/2 Caro-Kann Def: 2 Knts Attk. Mindeno Variation Exchange (B11)1-0 J Dueball vs Kolbak, 1968 (B11) Caro-Kann, Two Knights, 3...Bg4, 41 moves, 1-0 Caro-Kann Defense: Gurgenidze System (B15) 1/2-1/2 J Dueball vs V Ciocaltea, 1973 (B15) Caro-Kann, 8 moves, 1/2-1/2 Caro-Kann Def: Gurgenidze System (B15) 1/2-1/2 J Dueball vs M Czerniak, 1975 (B15) Caro-Kann, 26 moves, 1/2-1/2 Sicilian Grand Prix Attack (B23) 1/2-1/2 J Dueball vs Parma, 1971 (B00) Uncommon King's Pawn Opening, 24 moves, 1/2-1/2 Sicilian Defense: UnClosed Variation (B23) 1-0 J Dueball vs G Capelan, 1971 (B23) Sicilian, Closed, 64 moves, 1-0 Sicilian Defense: Closed Bg2 vs Dragon (B25) 1/2-1/2 Ulf Andersson vs J Dueball, 1969 (B25) Sicilian, Closed, 26 moves, 1/2-1/2 Sicilian Defense: Nimzowitsch. Closed Variation (B29) 1-0 J Dueball vs K Schiffer, 1971 (B29) Sicilian, Nimzovich-Rubinstein, 62 moves, 1-0 Sicilian Defense: Dragon. Modern Bc4 Variation (B35) 1-0 J Dueball vs L Mista, 1968 (B35) Sicilian, Accelerated Fianchetto, Modern Variation with Bc4, 39 moves, 1-0 Sicilian Defense: Classical. General (B56) 1-0 noteable J Dueball vs R Wittmann, 1981 (B56) Sicilian, 29 moves, 1-0 Sicilian Defense: Richter-Rauzer. Modern Variation (B61) 0-1 J Dueball vs D Drimer, 1969  (B61) Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2, 22 moves, 0-1 Sicilian Defense: Dragon. Yugoslav Attack (B77) 1-0 J Dueball vs H Camilleri, 1969 (B77) Sicilian, Dragon, Yugoslav Attack, 23 moves, 1-0 French Defense: Steinitz. Boleslavsky Variation (C11) 0-1 J Dueball vs Smejkal, 1969 (C11) French, 47 moves, 0-1 French Def: Classical. Burn Variation Morozevich Line (C11) 1/2 J Dueball vs R Debarnot, 1972 (C11) French, 23 moves, 1/2-1/2 French Defense: Winawer. Petrosian Variation (C16) 1-0 J Dueball vs G Sigurjonsson, 1969 (C16) French, Winawer, 41 moves, 1-0 French Defense: Winawer. Poisoned Pawn Main Line (C18) 0-1 J Dueball vs Uhlmann, 1969  (C18) French, Winawer, 30 moves, 0-1 French Defense: Winawer. Classical Variation (C18) 1/2-1/2 J Dueball vs A J Whiteley, 1973 (C18) French, Winawer, 23 moves, 1/2-1/2 French Defense: Winawer. Advance Var (C19) 1-0 24.? J Dueball vs G Jacoby, 1976  (C19) French, Winawer, Advance, 24 moves, 1-0 KGA. Allgaier Gambit Thorold Attk (C39) 1-0 Superb Mating Combo Maroczy vs G V R Exner, 1894  (C39) King's Gambit Accepted, 24 moves, 1-0 Russian Game: Modern Attack. Center Var (C43) 1-0 B skewers Rs J Dueball vs E Paoli, 1973 (C43) Petrov, Modern Attack, 30 moves, 1-0 Spanish Game: Closed. Worrall Attk Castling line (C86) 1/2-1/2 J Dueball vs Ivkov, 1969 (C86) Ruy Lopez, Worrall Attack, 43 moves, 1/2-1/2 32 games