B28j — Sicilian: O’Kelly, 3.c3 d5
1.e4 c5 2.Nf3 a6 3.c3 d5 * ○ Trait aux Blancs
Ouverture — Tension centrale
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Plans. exd5 (Capture en d5, Occuper le centre — 93 % des parties) ; e5 (Occuper le centre — 6 % des parties).
♚ Point de vue Noirs
1
2
3
4
5
6
7
8
hgfedcba
Plans. ...Nf6 (Développer g8 — 9 % des parties) ; ...Nc6 (Développer b8 — 3 % des parties).
Avantages
Faiblesses
Diagonale active
Plans
Structure de pions
| ♔ Blancs | ♚ Noirs | |
| Pions doublés | — | — |
| Pions isolés | — | — |
| Arriérés | — | — |
| Chaînes | ● b2→c3, d2→c3 | ● b7→a6 |
| Passés | — | — |
| Majorité | — | — |
Cases
| ♔ Blancs | ♚ Noirs | |
| Cases fortes | — | — |
| Cases faibles | — | — |
| Centre | ● d4 (2v1), ● e5 (1v0) | ● e4 (1v0) |
Colonnes et diagonales
| ♔ Blancs | ♚ Noirs |
Pièces
| ♔ Blancs | ♚ Noirs | |
| Bc1 | ● Bc1 Non développé (mob. 0) | |
| Bf1 | ● Bf1 Non développé (mob. 5) | |
| Bc8 | ● Bc8 Non développé (mob. 5) | |
| Bf8 | ● Bf8 Non développé (mob. 0) | |
| Paire de fous | ● Oui | ● Oui |
| Non développées | 5 (● b1, ● c1, ● f1, ● a1, ● h1) | 6 (● b8, ● g8, ● c8, ● f8, ● a8, ● h8) |
Sécurité du roi
| ♔ Blancs | ♚ Noirs | |
| Statut | ● Au centre | ● Au centre |
| Droits de roque | O-O / O-O-O | O-O / O-O-O |
Thèmes
| ♔ Blancs | ♚ Noirs | |
| Phase | Ouverture | |
| Centre | tension | |
| Ruptures | ● c3-c4, ● d2-d4 | ● …d5-d4, ● …f7-f5 |
| Partie |
|---|
| ? 1984 – Round ? – Tal, Mikhail – 0-1 – Csom, Istvan – G13 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nf6 7. O-O Be7 8. c4 Qd6 9. dxc5 Qxc5 10. Bf4 b6 |
| 1949 Venice – Round 12 – Foltys, Jan – 1/2-1/2 – Prins, Lodewijk – G91 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nc6 6. Be2 cxd4 7. cxd4 Bf5 8. Nc3 Qa5 9. O-O e6 10. Bf4 Rd8 |
| 1950 Dubrovnik olm – Round 6 – Unzicker, Wolfgang – 1-0 – Beni, Alfred – G80 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 e6 7. O-O Nf6 8. Be3 cxd4 9. cxd4 Nc6 10. Nc3 Qd7 |
| 1950 Interzonal – Round 13 – Rellstab, Ludwig – 1/2-1/2 – O'Kelly, Albéric de Galway – G24 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O Be7 8. Be3 cxd4 9. Nxd4 e5 10. c4 Qd8 |
| 1950 Venice – Round 3 – Pachman, Ludek – 1-0 – Mueller, Hans – G36 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nf6 7. O-O Be7 8. Qe2 O-O 9. dxc5 Qxc5 10. Nbd2 Nbd7 |
| 1951 GER Ch U20 – Round 8 – Bialas, Wolfram – 1/2-1/2 – Musmann, Lothar – G25 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nc6 6. Be2 Bf5 7. O-O cxd4 8. cxd4 Nf6 9. Nc3 Qa5 10. Bf4 Rd8 |
| 1951 Reggio Emilia – Round 1 – Canal, Esteban – 0-1 – Decreton Keller, Henrique – G13 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Bb4 9. O-O Bxc3 10. bxc3 Ne7 |
| 1951 Reggio Emilia – Round 10 – Canal, Esteban – 1/2-1/2 – De Paoli, Emilio – G52 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 e6 7. Nc3 Qd8 8. Bc4 Nf6 9. O-O Be7 10. Qe2 O-O |
| 1952 Helsinki olm – Round 1 – Stoltz, Gabriel – 1-0 – Carvalho Da Costa, Fabiano – G105 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nf6 7. O-O Be7 8. Na3 O-O 9. Nc4 Qd8 10. a4 Nbd7 |
| 1952 POL-ch10 – Round 2 – Szukszta, Janus – 1/2-1/2 – Grynfeld, Izaak – G12 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nc6 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Bb4 9. O-O Qa5 10. Ne4 Be7 |
| 1955 Long Beach US Open – Round 5 – Addison, William Grady – 1/2-1/2 – Zalys, Ignas – G5 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 e6 7. Be3 cxd4 8. cxd4 Nc6 9. Nc3 Qa5 10. h3 Bh5 |
| 1955 URS Team Ch fin – Round 1 – Gipslis, Aivars – 1/2-1/2 – Mukhitdinov, Mamadzhan – G1 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. O-O Be7 8. Be3 Nbd7 9. c4 Qd6 10. Nc3 O-O |
| 1956 Moscow olm prel – Round 3 – Padevsky, Nikola – 1-0 – Blau, Max – G89 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be3 cxd4 7. cxd4 Nf6 8. Nc3 Qa5 9. Bd3 Nbd7 10. O-O Be7 |
| 1957 USSR ch-04 5760 – Round ? – Dubinin, Peter – 1-0 – Kryukov, Vladimir – G2 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be3 Nd7 7. c4 Qc6 8. Nbd2 Ngf6 9. Qc2 Be7 10. h3 O-O |
| 1958 Danmarksmesterskabet – Round 5 – Haahr, Thorkild – 1/2-1/2 – Enevoldsen, Harald – G16 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. O-O Be7 8. c4 Qd8 9. dxc5 Qxd1 10. Rxd1 Bxc5 |
| 1958 Danmarksmesterskabet – Round 7 – Larsen, Ole Scholler – 1/2-1/2 – Enevoldsen, Harald – G26 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be3 Qc6 7. Bd3 Nf6 8. O-O Nbd7 9. c4 cxd4 10. Nxd4 Qc7 |
| 1959 Riga – Round 1 – Teschner, Rudolf – 1-0 – Witkowski, Stefan – G34 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 cxd4 7. cxd4 Nf6 8. Nc3 Qd8 9. Bg5 Be7 10. O-O Nbd7 |
| 1960 Leningrad ch-URS – Round 8 – Bagirov, Vladimir – 1/2-1/2 – Taimanov, Mark E – G73 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 cxd4 7. Qxd4 Nc6 8. Qxd5 Nxd5 9. Na3 e5 10. Nc4 f6 |
| 1960 Mar del Plata – Round 13 – Olafsson, Fridrik – 1-0 – Aguilera Bazan, Oscar – G102 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6 5. c4 e6 6. dxe6 Bxe6 7. Nc3 Nc6 8. Be2 Nd4 9. d3 Nxe2 10. Qxe2 Be7 |
| 1961 Baku ch-URS – Round 4 – Lein, Anatoly – 1/2-1/2 – Bronstein, David I – G43 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O cxd4 8. cxd4 Nc6 9. Nc3 Qd6 10. Bg5 Be7 |
| 1961 Helsinki – Round 4.4 – Hansen, Jens Haagen – 1/2-1/2 – Spiridonov, Nikola – G7 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nc6 6. Be3 cxd4 7. cxd4 e6 8. Nc3 Bb4 9. Be2 Nf6 10. O-O Qa5 |
| 1961 Rostov on Don – Round 1 – Ciric, Dragoljub M – 1/2-1/2 – Taimanov, Mark E – G4 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 cxd4 7. cxd4 e6 8. O-O Nc6 9. Be3 Be7 10. Nc3 Qd6 |
| 1961 URS Ch sf Batumi GEO – Round ? – Gipslis, Aivars – 1-0 – Mosionzhik, Ilya – G25 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nc6 7. O-O Nf6 8. Be3 c4 9. Be2 b5 10. b3 cxb3 |
| 1961 WchT U26 08th – Round 2.2 – Jakobsen, Ole – 1-0 – Westerinen, Heikki M.J. – G13 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. O-O Nc6 8. Be3 cxd4 9. cxd4 Be7 10. Nc3 Qd8 |
| 1962 Stockholm Interzonal – Round 6 – Stein, Leon Rico – 1-0 – Bolbochan, J. – G49 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O Be7 8. Bf4 Nc6 9. Ne5 Nxe5 10. Bxe5 O-O |
| 1963 Leningrad ch-URS – Round 1 – Gufeld, Eduard – 1-0 – Taimanov, Mark E – G70 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O cxd4 8. cxd4 Nc6 9. Nc3 Qd6 10. Be3 Be7 |
| 1965 Hastings ch-BCF – Round 8 – Cafferty, Bernard – 0-1 – Franklin Sheunesu Mhembere – G86 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nf6 7. O-O Be7 8. Re1 Nc6 9. Bf4 O-O 10. Nbd2 b5 |
| 1965 URS-JUG – Round 2 – Matulovic, Milan – 0-1 – Taimanov, Mark E – G7 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. O-O cxd4 8. cxd4 Be7 9. Nc3 Qd6 10. Bg5 Nbd7 |
| 1966 Tbilisi ch-URS – Round 19 – Gipslis, Aivars – 1-0 – Taimanov, Mark E – G173 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O cxd4 8. Nxd4 Be7 9. Nd2 O-O 10. Nc4 Qd8 |
| 1966 Tbilisi ch-URS – Round 6 – Geller, Efim P – 1/2-1/2 – Taimanov, Mark E – G56 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O Be7 8. Be3 cxd4 9. Nxd4 Nbd7 10. Nd2 Qd6 |
| 1966 URS Team Ch – Round ? – Klovans, Janis – 1/2-1/2 – Taimanov, Mark E – G21 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O Be7 8. Ne5 O-O 9. Bf3 Qd8 10. Qe2 Nfd7 |
| 1966 US Open – Round 13 – Formanek, Eduard – 1-0 – Zalys, Ignas – G82 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 cxd4 7. cxd4 e6 8. Nc3 Qd8 9. Qb3 b6 10. O-O Nf6 |
| 1967 Havana Armies Ch 4th – Round 2 – Adamski, Jan – 1/2-1/2 – Ozsvath, Andras – G10 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 Nf6 7. Nc3 Qd6 8. Bc4 e6 9. O-O Be7 10. Bg5 Nbd7 |
| 1967 It Agio – Round 7 – Limbos, Paul – 1-0 – Orbaan, Constant – G16 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be3 cxd4 7. cxd4 Nf6 8. Nc3 Qd8 9. Ne5 Be7 10. Be2 Nbd7 |
| 1967 October Revolution 50 – Round ? – Fuchs, Reinhart – 1/2-1/2 – Taimanov, Mark E – G98 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O Nbd7 8. c4 Qd6 9. Nc3 cxd4 10. Nxd4 Be7 |
| 1967 US Open – Round 12 – Rossolimo, Nicolas – 1-0 – Long Richard – G39 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 e6 7. O-O Nd7 8. c4 Qd6 9. Be3 Ngf6 10. Nc3 Be7 |
| 1967 YUG-URS women – Round 7 – Liljak, Milka – 1-0 – Zatulovskaya, Tatiana – G10 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O cxd4 8. cxd4 Nc6 9. Nc3 Qd6 10. Be3 Be7 |
| 1967 Zierikzee ch-NED – Round 10 – Zuidema, Coen – 1/2-1/2 – Bakker, Piet – G50 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. O-O Be7 8. Ne5 O-O 9. Bf3 Qd8 10. Qe2 Nbd7 |
| 1969 Vrsac – Round 5 – Damjanovic, Marko – 1-0 – Rossolimo, Nicolas – G37 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. Be2 e6 7. O-O Nf6 8. h3 Bh5 9. c4 Qd8 10. Be3 cxd4 |
| 36. Olympiad 2004 – Round 12 – Illescas Cordoba, Miguel – 1/2-1/2 – Kurajica, Bojan – G429 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 g6 7. O-O Bg7 8. Ne5 O-O 9. Bf3 Qd8 10. dxc5 Qc7 |
| FIDE WCh KO 2000 – Round 1.3 – Grischuk, Alexander – 1-0 – Lima, Darcyrcy – G33 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O Nc6 8. Be3 cxd4 9. Nxd4 Bd7 10. Bf3 Qd6 |
| Petrosian Memorial 2014 – Round 1.2 – Leko, Peter – 1/2-1/2 – Morozevich, Alexander – G2 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 e6 7. O-O cxd4 8. cxd4 Nc6 9. Nc3 Qd6 10. Be3 Be7 |
| SportAccord Blindfold Men 2012 – Round 3.3 – Leko, Peter – 1-0 – Nakamura, Hikaru – G19 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. Be2 cxd4 7. cxd4 g6 8. Nc3 Qd6 9. Ne5 Bg7 10. Bf4 Qd8 |
| Superbet Blitz 2019 – Round 11.1 – Caruana, Fabiano – 0-1 – Artemiev, Vladislav – G51 1. e4 c5 2. Nf3 a6 3. c3 d5 4. e5 Nc6 5. d4 cxd4 6. cxd4 Bg4 7. Be2 e6 8. Nbd2 Bb4 9. O-O Nge7 10. Nb3 O-O |
| Thessaloniki olm 1988 – Round 12 – Freitag, Roland – 1/2-1/2 – von Kiedrowski, Klemens – G105 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. O-O Nc6 8. Be3 cxd4 9. Nxd4 Nxd4 10. Bxd4 Bc5 |
| USA Ch 2022 – Round 11.7 – So, Wesley – 1-0 – Moradiabadi, Elshan – G76 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6 5. d4 cxd4 6. Qa4+ Qd7 7. Qxd7+ Bxd7 8. c4 e6 9. dxe6 fxe6 10. Nxd4 e5 |
| World Blitz 2016 – Round 18.46 – Neelotpal, Das – 0-1 – Zhang, Zhong – G729 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Be2 Nf6 7. Be3 cxd4 8. cxd4 Nc6 9. Nc3 Qd6 10. O-O Be7 |
| World Blitz 2017 – Round 14.6 – Anand, Viswanathan – 1/2-1/2 – Artemiev, Vladislav – G760 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 Bg4 6. dxc5 Qxc5 7. Be3 Qc7 8. Nbd2 Nf6 9. h3 Bh5 10. Qa4+ Nc6 |
| World Blitz 2019 – Round 11.79 – Piorun, Kacper – 1/2-1/2 – Novikov, Stanislav – G782 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Qxd5 5. d4 e6 6. Bd3 Nf6 7. O-O Nc6 8. Re1 Be7 9. dxc5 Bxc5 10. h3 h6 |
| World Blitz 2021 – Round 4.29 – Hovhannisyan, Razmik – 1/2-1/2 – Van Foreest, Lucas – G216 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6 5. d4 cxd4 6. c4 e6 7. dxe6 Bxe6 8. Nxd4 Nc6 9. Nxe6 fxe6 10. Be2 Qa5+ |













Tal, Mikhail — 1 partie
Kasparov, Garry — 1 partie
Carlsen, Magnus — 1 partie
Ju, Wenjun — 1 partie
Anand, Viswanathan — 1 partie
1950 — Pachman, Ludek vs Mueller, Hans — 1-0 — Venice ITA
1950 — Rellstab, Ludwig vs O'Kelly, Albéric de Galway — 1/2-1/2 — Bled SLO
1951 — Canal, Esteban vs Paoli, Enrico — 1/2-1/2 — Reggio Emilia ITA
1951 — Canal, Esteban vs Keller, Hans — 0-1 — Reggio Emilia ITA
1978 — Vasconocellos vs Jordan, James — 0-1 — US Open
1982 — Kilgour, Ian A. vs Kleinplatz, Sam — 1-0 — Toronto CAN
1982 — Coerts, Marten vs Driessen, Wim — 0-1 — Alkmaar open
1986 — Roji, Cwenga vs Andres Francisco Jimenez Rodriguez — 0-1 — Colonia cadetes
1976 — Dermitzoglou vs Bousios, Hristos — 0-1 — Thessaloniki GRE
1996 — Abaza, Marin vs Gonzalez, Fabian — 0-1 — Barcelona ESP
1999 — Lo Curto, Emanuele vs Racioppo, Paolo — 0-1 — Turin ITA
2008 — Castaignet, Laurent vs Van Rompu, Alexandre — 1/2-1/2 — France
1992 — Barnes, Courtney vs Fabio, Ferreira — 0-1 — Manila ol women
1992 — Frankot, E. vs Boonman, P. — 1-0 — Nijmegen NED
2010 — Kostov, Nikolay vs Yordanov, Boris — 0-1 — Sofia BUL
2013 — Soler, Soraya vs Castrillon Gomez, Melissa — 0-1 — Ibague