Structure de pions
| ♔ Blancs | ♚ Noirs | |
| Pions doublés | — | — |
| Pions isolés | — | — |
| Arriérés | — | — |
| Chaînes | ● d2→e3, f2→e3 | — |
| Passés | — | — |
| Majorité | — | — |
Cases
| ♔ Blancs | ♚ Noirs | |
| Cases fortes | ● e4 (2v1), ● b5 (2v0), ● d5 (2v1) | — |
| Cases faibles | — | — |
| Centre | ● d5 (2v1), ● e4 (2v1) | — |
Colonnes et diagonales
| ♔ Blancs | ♚ Noirs |
Pièces
| ♔ Blancs | ♚ Noirs | |
| Bc1 | ● Bc1 Non développé (mob. 0) | |
| Bf1 | ● Bf1 Non développé (mob. 2) | |
| Bb4 | ● Bb4 Actif (mob. 7) | |
| Bc8 | ● Bc8 Non développé (mob. 0) | |
| Paire de fous | ● Oui | ● Oui |
| Non développées | 4 (● c1, ● f1, ● a1, ● h1) | 3 (● c8, ● 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 | mobile | |
| Ruptures | ● d2-d4 | ● …d7-d5 |
A28i — Four Knights
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.e3 Bb4 5.Qc2 ● Trait aux Noirs
Ouverture — Centre mobile
♔ Point de vue Blancs
8
7
6
5
4
3
2
1
abcdefgh
Plans. d3 (Libérer Bc1) ; Bd3 (Développer Bf1) ; h3 (Empêcher ...Bg4) ; d4 (Occuper le centre) ; c5 (Frapper le centre adverse).
♚ Point de vue Noirs
1
2
3
4
5
6
7
8
hgfedcba
Plans. ...O-O (Mettre le roi en sécurité, connecter les tours) ; ...d6 (Libérer Bc8) ; ...d5 (Occuper le centre) ; ...e4 (Occuper le centre).
Avantages
Faiblesses
Diagonale active
Plans
| Partie |
|---|
| ? 2000 – Round ? – Dos Reis, Pollyana Goncalves – 0-1 – Avrukh, Boris – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. a3 d6 8. Nxe7+ Qxe7 9. d3 a5 10. b3 d5 |
| 1935 Warsaw olm – Round 7 – Pirc, Vasja – 0-1 – Lilienthal, Andor – G21 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. a3 d6 8. Be2 Nxd5 9. cxd5 Nb8 10. b4 Nd7 |
| 1936 Nottingham – Round 1 – Flohr, Salo – 1/2-1/2 – Fine, Reuben – G8 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Be2 Re8 7. O-O d6 8. Ne1 Be6 9. a3 Bxc3 10. Qxc3 a5 |
| 1951 Augsburg – Round 3 – Heinicke, Herbert – 0-1 – Bogoljubow, Efim – G15 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 d5 8. cxd5 Nxd5 9. a3 Bf8 10. Be2 Nf6 |
| 1952 Tatranska ch CZE – Round 6 – Filip, Miroslav – 1-0 – Potucek, Ludovit – G16 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Be2 Re8 7. O-O e4 8. Ne1 Bxc3 9. bxc3 Qe7 10. f3 b6 |
| 1957 Manhattan CC Ch 5657 fin – Round 5 – Feuerstein, Arthur – 1/2-1/2 – Shipman, Walter – G14 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. a3 Bxc3 7. Qxc3 Re8 8. d3 d5 9. cxd5 Qxd5 10. Be2 e4 |
| 1958 HUN Ch 13th – Round 19 – Barcza, Gedeon – 1/2-1/2 – Szily, Jozsef – G158 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 Bf8 8. Be2 d5 9. cxd5 Nb4 10. Qb3 Nbxd5 |
| 1960 Buenos Aires ch-ARG – Round 15 – Benko, Francisco – 1-0 – Espinosa Flores, Rafael Emilio – G104 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. a3 d6 8. Be2 Nxd5 9. cxd5 Nb8 10. d4 Nd7 |
| 1961 Warsaw – Round 1 – Lengyel, Laszlo – 1-0 – Zinn, Lothar – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 d5 7. cxd5 Nxd5 8. a3 Nxc3 9. bxc3 Bd6 10. d4 Bg4 |
| 1964 Capablanca Memorial – Round 17 – Bielicki, Carlos – 0-1 – Smyslov, Vasily – G166 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. b3 Bxc3 7. Qxc3 Re8 8. d3 d5 9. cxd5 Qxd5 10. Be2 e4 |
| 1964 Capablanca Memorial – Round 17 – Bielicki, Carlos – 0-1 – Smyslov, Vladimir – G167 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. a3 Bxc3 7. Qxc3 Re8 8. d3 d5 9. cxd5 Qxd5 10. Be2 e4 |
| 1965 Leipzig Inter-1 – Round 6 – Barcza, Gedeon – 1/2-1/2 – Liebert, Heinz – G21 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. a3 Bf8 8. d3 d6 9. Nc3 a5 10. Be2 Bf5 |
| 1965 Tallinn ch-URS – Round 1 – Bukhman, Eduard – 1-0 – Sakharov, Yuri G. – G10 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Bd3 h6 8. O-O Bf8 9. a3 a5 10. Nxf6+ Qxf6 |
| 1965 Tallinn ch-URS – Round 1 – Mikenas, Vladas – 1-0 – Sakharov, Yuri G. – G11 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Nxb4 Nxb4 8. Qb3 a5 9. d3 d5 10. a3 Na6 |
| 1967 Rubinstein Memorial – Round 3 – Doda, Zbigniew – 1/2-1/2 – Flohr, Salo – G11 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Be2 Re8 7. d3 d5 8. cxd5 Nxd5 9. O-O Nf6 10. Bd2 Bg4 |
| 1968 Reggio Emilia – Round 9 – Ghitescu, Theodor – 1/2-1/2 – Paoli, Enrico – G12 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 d5 7. cxd5 Nxd5 8. a3 Be7 9. Bd2 a5 10. Be2 Nb6 |
| 1972 Skopje ol (Men) fin-A – Round 1 – Garcia Rodriguez, Raimundo – 0-1 – Malich, Burkhard, Dr. – G40 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 Bf8 8. Be2 d6 9. O-O h6 10. Rfd1 Bf5 |
| 1972 Skopje ol (Men) fin-A – Round 11 – Malich, Burkhard, Dr. – 1/2-1/2 – Smejkal, Jan – G32 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 Bxc3 8. Bxc3 d5 9. cxd5 Nxd5 10. Be2 Bf5 |
| 1972 Skopje ol (Men) fin-A – Round 4 – Darga, Klaus – 1/2-1/2 – Uhlmann, Wolfgang – G41 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 Bf8 8. Be2 d6 9. O-O h6 10. a3 Bf5 |
| 1975 Portoroz/Ljubljana – Round 7 – Ribli, Zoltan – 1/2-1/2 – Portisch, Lajos – G4 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 d6 8. Be2 Bf5 9. Ne4 Bxe4 10. dxe4 Bxd2+ |
| 40. Olympiad Open 2012 – Round 3.3 – Rodgaard, John – 0-1 – Mamedov, Rauf – G191 1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. Nf3 Bb4 5. Qc2 O-O 6. d3 d5 7. cxd5 Nxd5 8. Be2 Be7 9. a3 Kh8 10. Nxd5 Qxd5 |
| 43. Olympiad 2018 – Round 11.5 – Laznicka, Viktor – 1/2-1/2 – Eljanov, Pavel – G749 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. a3 d6 8. Ng5 g6 9. Nxe7+ Qxe7 10. d3 Ng4 |
| Amber-blindfold 02nd 1993 – Round 4 – Ljubojevic, Ljubomir – 1/2-1/2 – Anand, Viswanathan – G2 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Bd3 g6 8. a3 Bf8 9. Rb1 Bg7 10. b4 d6 |
| Hoogovens 1978 – Round 1 – Miles, Anthony J – 1/2-1/2 – Portisch, Lajos – G3 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 a5 7. a3 Be7 8. d4 exd4 9. exd4 Re8 10. Be3 Bf8 |
| Linares 1993 – Round 9 – Ljubojevic, Ljubomir – 0-1 – Karpov, Anatoly – G35 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. Bd3 g6 8. Nxf6+ Qxf6 9. a3 Bf8 10. Be4 d6 |
| Lindores Abbey Tal Memorial 2021 – Round 3.8 – Howell, David W L – 1-0 – Maghsoodloo, Parham – G166 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. a3 d6 8. Nxe7+ Qxe7 9. d3 a5 10. b3 d5 |
| Moskou ch-URS 1973 – Round 11 – Smyslov, Vassily – 0-1 – Kuzmin, Gennadi – G70 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 Bxc3 8. Bxc3 d5 9. cxd5 Nxd5 10. Be2 Qd6 |
| OHRA 1988 – Round 1 – Korchnoi, Viktor – 0-1 – Nikolic, Predrag – G2 1. c4 e5 2. Nc3 Nc6 3. e3 Nf6 4. Nf3 Bb4 5. Qc2 O-O 6. Nd5 Re8 7. a3 Bf8 8. Bd3 g6 9. O-O Bg7 10. Nxf6+ Qxf6 |
| PCA Qualifiers 1993 – Round 8 – Ljubojevic, Ljubomir – 0-1 – Illescas Cordoba, Miguel – G142 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. a3 Bxc3+ 8. Qxc3 d5 9. cxd5 Qxd5 10. e4 Qd6 |
| Petropolis Interzonal 1973 – Round 10 – Panno, Oscar – 1/2-1/2 – Portisch, Lajos – G37 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. d3 Re8 7. Bd2 d6 8. Be2 Bf5 9. O-O e4 10. Ne1 Bg6 |
| Siegen olm 1970 – Round 12 – Bobotsov, Milko G – 0-1 – Portisch, Lajos – G19 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Be2 Re8 7. O-O e4 8. Nd4 Nxd4 9. exd4 d5 10. cxd5 Bf5 |
| Turin ol (Men) 37th 2006 – Round 10 – Nogueiras Santiago, Jesus – 1/2-1/2 – Harikrishna, Pentala – G124 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 Qe7 6. Nd5 Nxd5 7. cxd5 e4 8. Ng1 Nb8 9. Qxc7 O-O 10. Qc2 b6 |
| World Blitz 2017 – Round 11.14 – Cheparinov, Ivan – 1/2-1/2 – Kryvoruchko, Yuriy – G555 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 Be7 7. a3 d6 8. Be2 Be6 9. Ng5 Bxd5 10. cxd5 Nb8 |
| World Blitz 2017 – Round 5.48 – Ganguly, Surya Shekhar – 0-1 – Khismatullin, Denis – G274 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 d6 6. d3 O-O 7. Be2 a6 8. O-O Bc5 9. a3 Ba7 10. b4 Ne7 |
| World Blitz 2018 – Round 12.25 – Inarkiev, Ernesto – 1-0 – Kevlishvili, Robby – G708 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 d6 6. Nd5 Nxd5 7. cxd5 O-O 8. dxc6 bxc6 9. Be2 Rb8 10. O-O Bc5 |
| World Blitz 2019 – Round 1.50 – Harsha Bharathakoti – 0-1 – Firouzja, Alireza – G44 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 d6 6. Ne2 O-O 7. a3 Ba5 8. Ng3 Re8 9. Bd3 Qe7 10. Ne4 g6 |
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