Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, g2→h3, c3→d4	● a6→b5, d6→c5, d6→e5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● c4 (2v1)
Cases faibles	—	—
Centre	● e4 (3v1), ● e5 (2v1)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Bc2	● Bc2 Actif (mob. 4)
Be7		● Be7 Ok (mob. 2)
Bc8		● Bc8 Non développé (mob. 6)
Paire de fous	● Oui	● Oui
Non développées	2 (● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c3-c4	● …d6-d5

C97f — Spanish: Closed, Chigorin, 12…Re8

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Re8 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plan principal. Jeu au centre (rupture c3-c4).

Atouts. Les Blancs s'appuient sur un fou actif en c2.

En contrepartie. Plusieurs pièces dorment encore (le fou c1 et la tour a1).

Plans. Nf1 (77 % des parties) ; d5 (Occuper le centre — 11 % des parties) ; b4 (Expansion aile dame — 7 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plan principal. Jeu sur l'aile dame.

Atouts. Les Noirs s'appuient sur un contrôle dominant de c4 et un avant-poste en c4.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...Bf8 (32 % des parties) ; ...h6 (15 % des parties) ; ...Bd7 (Fou actif (mobilité 6), Développer c8 — 12 % des parties) ; ...Nc4 (Cavalier actif en c4 — 10 % des parties) ; ...g6 (10 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1909 BCF Ch 6th – Round 1 – Sergeant, Edward – 1/2-1/2 – Mackenzie, Arthur J – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1924 BCF Ch 17th – Round 10 – Atkins, Henry Ernest – 1/2-1/2 – Thomas, George Alan – G46 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1925 Debrecen – Round 1 – Asztalos, Lajos – 1/2-1/2 – Havasi, Kornel – G61 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1928 The Hague – Round 8 – Steiner, Lajos – 0-1 – Przepiorka, Dawid – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 b5 7. Bb3 Be7 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1928 The Hague ol (Men) – Round 5 – Steiner, Endre – 1-0 – Sapira, Emmanuel – G33 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. c3 Be7 8. Re1 Na5 9. Bc2 c5 10. d4 Qc7
1945 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1-0 – Smyslov, Vladimir – G115 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1945 Moskou ch-URS – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Koblencs, Alexander – G114 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1954 Hastings5455 – Round 4 – Unzicker, Wolfgang – 1-0 – Donner, Jan-Hein – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1954 Olympiad final A – Round 1 – Schmid, Leo – 1/2-1/2 – Donner, H. – G73 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1955 Buenos Aires CA – Round 8 – Reinhardt, Enrique – 0-1 – Donner, Jan-Hein – G57 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1955 Hoogovens – Round 1 – Bouwmeester, Hans – 1-0 – Donner, Jan-Hein – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1955 Hoogovens – Round 3 – Bergsma, KM. – 0-1 – Donner, Jan-Hein – G22 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1955 Novi Sad – Round 10 – Bertok, Mario Jr. – 0-1 – Milic, Borislav – G84 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1955 Novi Sad – Round 12 – Djurasevic, Bozidar – 1/2-1/2 – Matanovic, Aleksandar – G98 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1955 Novi Sad – Round 17 – Milic, Borislav – 1-0 – Vospernik, Zdravko – G128 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1955 URS Team Ch fin – Round 8 – Shamkovich, Leonid – 1-0 – Chukaev, Egor – G33 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Candidats Tournament – Round 17 – Keres, Paul – 0-1 – Filip, Marius Liviu – G82 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Hoogovens – Round 5 – Kramer, Hanspeter – 1/2-1/2 – Bouwmeester, Hans – G24 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Moscow olm fin-B – Round 4 – Dueckstein, Andreas – 1-0 – Boutteville, Cesar – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Moscow olm prel – Round 5 – Safvat, Younus – 0-1 – Cuellar Gacharna, Miguel – G159 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Moscow olm prel – Round 7 – Siaperas, Triantafyllos – 0-1 – Balanel, Ion – G237 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 Olympiad, Moscow RUS – Round 1 – Matanovic, Anto – 1/2-1/2 – Bolbochan, J. – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 YUG-GER – Round 2.2 – Darga, Klaus – 1-0 – Matanovic, Aleksandar – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1957 Hoogovens – Round 1 – Toran Albero, Roman – 1-0 – Donner, Jan-Hein – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1957 Mar del Plata – Round 12 – Ader Hausman, Walter – 0-1 – Najdorf, Miguel – G109 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1957 Mar del Plata – Round 15 – Albert Seguer, Eladio – 1/2-1/2 – Mangini, Jose Henrique de Mello – G131 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. h3 O-O 9. c3 Na5 10. Bc2 c5
1957 Sao Paulo Sao Paulo BRA – Round 6 – Sanguineti, Raúl Carlos – 1-0 – Zacharias Guardia, Jose Bismarck – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 O-O 8. h3 d6 9. c3 Na5 10. Bc2 c5
1957 WchT U26 04th – Round 13.1 – Olafsson, Fridrik – 1/2-1/2 – Filip, Miroslav – G163 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1958 It Kienbaum GER – Round 10 – Kostro, Jerzy – 1-0 – Kozma, Julius – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1958 JUG-13ch Sarajevo BIH – Round 14 – Vukcevich, Milan – 1/2-1/2 – Ivkov, Borislav – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1958 Mar del Plata – Round 7 – Sanguinetti, Ricardo – 1/2-1/2 – Letelier Martner, Rene – G55 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1959 Mar del Plata – Round ? – Fischer, Robert J – 0-1 – Letelier Martner, Rene – G103 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Mar del Plata – Round 1 – Fischer, Robert – 1-0 – Sanguineti, Raúl Carlos – G60 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Mar del Plata – Round 11 – Abreu Sanchez, Leonel Jesus – 1/2-1/2 – Letelier Martner, Rene – G76 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7
1959 Mar del Plata – Round 9 – Fischer, Robert – 1-0 – Sanguineti, Raúl Carlos – G73 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1959 Santiago – Round 7 – Fischer, Robert J – 1-0 – Letelier Martner, Rene – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1960 Nimzowitsch Memorial – Round ? – Geller, Efim P – 1-0 – Kolvig, Bent – G46 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1961 Baku ch-URS – Round 14 – Kots, Yuri I – 0-1 – Keres, Paul – G134 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1961 URS-ch29 – Round 16 – Tal, Mikhail – 1-0 – Gurgenidze, Bukhuti – G11 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1962 Match – Round 1 – Mack Lee, Aizyleen – 0-1 – Glicker, J. – G22 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1962 Spartak Ch – Round 15 – Kondratiev, Pavel E – 1/2-1/2 – Gurgenidze, Bukhuti – G118 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1962 Spartak Ch – Round 17 – Zaitsev, Alexander – 1/2-1/2 – Gurgenidze, Bukhuti – G132 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1963 Kiev Avantgard Ch – Round ? – Bannik, Anatolij – 1/2-1/2 – Bakhmatov, Eduard – G47 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1964 Belgrade – Round 9 – Matanovic, Aleksandar – 1-0 – Milic, Borislav – G67 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Belgrade – Round 9 – Matulovic, Milan – 0-1 – Ivkov, Borislav – G66 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 O-O 10. h3 c5
1964 Bordeaux Open Bordeaux FRA – Round 4 – Matanovic, Aleksandar – 1-0 – Boutteville, Cesar – G27 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Ilford qual – Round 9 – Barden, Leonard – 1/2-1/2 – Haygarth, Michael J – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Tel Aviv olm prel – Round 2 – Gragger, Anton Fritz – 0-1 – Matanovic, Aleksandar – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Tel Aviv olm prel – Round 5 – Mazzoni, Guy – 1/2-1/2 – Kraidman, Yair – G196 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Tel Aviv olm prel – Round 7 – Johansson Rexner, Melker – 1-0 – Kraidman, Yair – G275 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Berlin tt – Round 1 – Hecht, Hans-Joachim – 1-0 – Zuidema, Coen – G6 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Hungary – Round 1 – Barczay, Laszlo – 1-0 – Kovacs, Laszlo M – G99 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1966 Ch (Men) Budapest HUN – Round 9 – Szilagyi, Peter – 1/2-1/2 – Kurtesch Laszlo – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1966 La Habana olm prel – Round 2 – Ujtumen, Tudev – 0-1 – Ivkov, Borislav – G73 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1966 Tel Aviv 6th – Round 8 – Yanofsky, Daniel Abraham – 1/2-1/2 – Kraidman, Yair – G29 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1967 IBM – Round 5 – Ciric, Dimitrije – 1/2-1/2 – Portisch, Lajos – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1967 Vrnjacka Banja zt – Round 3 – Kostro, Jerzy – 1/2-1/2 – Bilyap, Siracettin – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Be7 7. Re1 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1967 Vrnjacka Banja zt – Round 9 – Jansa, Vlastimil – 1/2-1/2 – Kostro, Jerzy – G64 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1967 YUG-URS – Round 5 – Geller, Efim P – 1-0 – Ivkov, Borislav – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1967 YUG-URS women – Round 6 – Nedeljkovic, Verica – 0-1 – Zatulovskaya, Tatiana – G7 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. h3 O-O
1968 Amsterdam m1 – Round 3 – Cuijpers, Frans Andre – 0-1 – Ivkov, Borislav – G3 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1969 JUG-URS – Round 1 – Geller, Efim P – 1-0 – Ivkov, Borislav – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
1969 Rubinstein Memorial – Round 6 – Kostro, Jerzy – 1/2-1/2 – Ivkov, Borislav – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1969 Rubinstein Memorial – Round 8 – Jansa, Vlastimil – 1/2-1/2 – Ivkov, Borislav – G31 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1970 Vinkovci – Round 15 – Parma, Bruno – 1-0 – Ozanic, Marijan – G102 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1972 Skopje ol (Men) fin-A – Round 5 – Byrne, Robert – 1/2-1/2 – Ivkov, Borislav – G324 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
Erevan ch-URS 1975 – Round 1 – Bronstein, David Ionovich – 1/2-1/2 – Geller, Efim P – G26 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
Moskou ch-URS 1973 – Round 1 – Korchnoi, Viktor – 1-0 – Smyslov, Vassily – G56 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
Moskou ch-URS 1973 – Round 14 – Tukmakov, Vladimir B – 1/2-1/2 – Smyslov, Vassily – G86 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
Petropolis Interzonal 1973 – Round 7 – Keres, Paul – 0-1 – Smyslov, Vassily – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 9. h3 Na5 10. Bc2 c5
Rio de Janeiro Interzonal 1979 – Round 18 – Balashov, Yuri S – 1/2-1/2 – Ivkov, Borislav – G57 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5

C97f —

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Re8

Les coups candidats

13.Nf1 — 78.6% (690 parties)

Ambassadeurs : Malmstroem, Jan Hendrik (10x), Ivkov, Borislav (8x), Matanovic, Aleksandar (6x), Donner, Jan-Hein (5x), Milic, Borislav (5x), Geller, Efim P. (5x), Fischer, Robert J (4x), Matulovic, Milan (3x)

13.d5 — 10.7% (94 parties)

Ambassadeurs : Hlavnicka, Karel (2x), Mack, Andrew L (1x), Glicker, J. (1x), Siaperas, Triantafyllos (1x), Balanel, Ion (1x), Unruh, Harrison (1x), Sauermann, Wilfried (1x), Bellin, Robert (1x)

13.b3 — 4.8% (42 parties)

Ambassadeurs : Smyslov, Vladimir (2x), Pinter, Jozsef (2x), Bortnyk, Mariia (2x), Kortchnoi, V. (1x), Korchnoi, Viktor (1x), Tosic, Miroslav (1x), Kostic, Vladimir (1x), Balashov, Yuri (1x)

13.b4 — 3.5% (31 parties)

Ambassadeurs : Ivkov, Borislav (3x), Kostro, Jerzy (2x), Jansa, Vlastimil (2x), Matulovic, Milan (2x), Zagorovsky (1x), Nyman, Aino (1x), Vukcevich, Milan (1x), Tal, Mikhail (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	13.Nf1	13.d5	13.b3	13.b4
<1800	62	74%	18%	—	3%
1800-2200	416	82%	10%	5%	2%
2200-2600	203	77%	9%	9%	1%
2600+	10	50%	20%	20%	10%

Évolution par décennie (% des parties)

Décennie	N parties	13.Nf1	13.d5	13.b3	13.b4
1950s	47	85%	4%	—	4%
1960s	44	82%	2%	—	14%
1970s	43	63%	5%	9%	14%
1980s	36	78%	14%	3%	3%
1990s	99	75%	20%	1%	4%
2000s	274	87%	8%	1%	2%
2010s	291	74%	11%	10%	2%
2020s	44	68%	25%	5%	2%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
13.Nf1	74%	68%	▼ -6.0%
13.d5	11%	25%	▲ +14.3%
13.b3	10%	5%	▼ -5.8%
13.b4	2%	2%	+0.2%

Joueurs célèbres

Champions du monde dans cette position

Smyslov, Vladimir — 2 parties
Tal, Mikhail — 1 partie

Parties historiques

13.Nf1 — 78.6% (690 parties)

1953 — Pachman, Ludek vs Ujtelky, Maximilian — 0-1 — Teplitz-Schoenau GER
1954 — Nilsson, Zandor vs Carlsson, Henrik 1978 — 1-0 — Stockholm SWE
1954 — Unzicker, Ferdinand, Dr. vs Donner, Jan-Hein — 1-0 — Hastings ENG
1955 — Bertok, Mario Jr. vs Milic, Borislav — 0-1 — Novi Sad SRB
1955 — Barges, Lucas vs Donner, Jan-Hein — 0-1 — Beverwijk NED

13.d5 — 10.7% (94 parties)

1956 — Siaperas, Triantafyllos vs Balanel, Ion — 0-1 — Moskou olm
1956 — Unruh, Harrison vs Sauermann, Wilfried — 0-1 — cr.
1962 — Mack, Andrew L vs Glicker, J. — 0-1 — match
1973 — Cosulich, Roberto vs Ivkov, Borislav — 1/2-1/2 — Madonna di Campiglio
1979 — Bellin, Robert vs Pytel, Krzysztof — 1/2-1/2 — Graz Graz AUT

13.b3 — 4.8% (42 parties)

1973 — Kortchnoi, V. vs Smyslov, Vladimir — 1-0 — Moskou ch-URS
1973 — Korchnoi, Viktor vs Smyslov, Vladimir — 1-0 — URS
1977 — Pineault, Denis vs Berube, Richard — 1/2-1/2 — CAN
1979 — Balashov, Yuri vs Ivkov, Borislav — 1/2-1/2 — Rio de Janeiro izt
1982 — Tosic, Miroslav vs Kostic, Vladimir — 0-1 — Vrnjacka Banja SRB

13.b4 — 3.5% (31 parties)

1955 — Shamkovich, Leonid vs Chukaev, Egor — 1-0 — Voroshilovgrad
1958 — Vukcevich, Milan vs Ivkov, Borislav — 1/2-1/2 — JUG-13ch Sarajevo BIH
1961 — Tal, Mikhail vs Gurgenidze, Bukhuti — 1-0 — Baku AZE
1964 — Johansson, Martin 1979 vs Kraidman, Yair — 1-0 — Tel Aviv olm
1965 — Zagorovsky vs Nyman, Aino — 1-0 — cr.

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