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Jon Halfdanarson

Number of games in database: 34
Years covered: 1965 to 2017
Last FIDE rating: 2109
Highest rating achieved in database: 2176
Overall record: +12 -18 =4 (41.2%)*
   * Overall winning percentage = (wins+draws/2) / total games.

Repertoire Explorer
Most played openings
A56 Benoni Defense (4 games)
A04 Reti Opening (2 games)
A11 English, Caro-Kann Defensive System (2 games)

RECENT GAMES:
   🏆 ISL-chT Div 1 2017/18
   Hjartarson vs J Halfdanarson (Oct-22-17) 1-0

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JON HALFDANARSON
(born 1947) Iceland

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 page 1 of 2; games 1-25 of 34  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. L Bronstein vs J Halfdanarson  1-0311965Wch U20 q-2A17 English
2. J Halfdanarson vs B Kurajica  0-1321965Wch U20 q-2B28 Sicilian, O'Kelly Variation
3. J Halfdanarson vs Suttles  ½-½471965Wch U20 q-2B09 Pirc, Austrian Attack
4. J Halfdanarson vs R Brent  1-0271965Wch U20 f-CD20 Queen's Gambit Accepted
5. B Thorsteinsson vs J Halfdanarson  1-0181966ReykjavikC50 Giuoco Piano
6. J Halfdanarson vs F Olafsson  0-1211966ReykjavikA07 King's Indian Attack
7. Vasiukov vs J Halfdanarson  1-0261966ReykjavikC70 Ruy Lopez
8. J Halfdanarson vs J Kristinsson  0-1381966ReykjavikE81 King's Indian, Samisch
9. F Thorbergsson vs J Halfdanarson  1-0561966ReykjavikA08 King's Indian Attack
10. G Palmason vs J Halfdanarson  ½-½301966ReykjavikD52 Queen's Gambit Declined
11. J Halfdanarson vs R G Wade  0-1331966ReykjavikA56 Benoni Defense
12. G Kieninger vs J Halfdanarson  0-1641966ReykjavikC20 King's Pawn Game
13. J Halfdanarson vs G Sigurjonsson  ½-½161966ReykjavikE46 Nimzo-Indian
14. E Book vs J Halfdanarson 1-0271966ReykjavikD51 Queen's Gambit Declined
15. J Halfdanarson vs O'Kelly  0-1351966ReykjavikB80 Sicilian, Scheveningen
16. J F Gibson vs J Halfdanarson  0-1311967World Student Team Championship Final-BB97 Sicilian, Najdorf
17. J Halfdanarson vs A Soltis  0-1341967World Student Team Championship qual-5E83 King's Indian, Samisch
18. J Kolbak vs J Halfdanarson  0-1641968WchT U26 15th qual-DA02 Bird's Opening
19. J Halfdanarson vs Kupreichik  0-1371969World Student Team Championship qual-1A04 Reti Opening
20. S Grunberg vs J Halfdanarson  0-1331969World Student Team Championship qual-1A56 Benoni Defense
21. J Halfdanarson vs M Kennefick  1-0251969World Student Team Championship qual-1A04 Reti Opening
22. D Sioris vs J Halfdanarson  0-1231969World Student Team Championship qual-1A56 Benoni Defense
23. J Halfdanarson vs P Balaskas  1-0391969World Student Team Championship Final-BA05 Reti Opening
24. J Halfdanarson vs F Strobel  ½-½191969World Student Team Championship Final-BA89 Dutch, Leningrad, Main Variation with Nc6
25. O Sande vs J Halfdanarson  0-1321969World Student Team Championship Final-BA10 English
 page 1 of 2; games 1-25 of 34  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Halfdanarson wins | Halfdanarson loses  

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