C82n — Spanish: Open, Baguio, 12.Nb3

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2 O-O 11.Bc2 Bf5 12.Nb3 * ● Trait aux Noirs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte d4, la paire de fous et la colonne semi-ouverte d.

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

Plans. Be3 (Développer Bc1) ; h3 (Empêcher ...Bg4) ; Tour sur colonne d.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur les cases fortes c4 et e4, des fous actifs en c5 et f5, la paire de fous et la colonne semi-ouverte e.

Côté adverse. Le fou enfermé en c1.

Plans. ...Bg4 (Clouer Nf3) ; ...d4 (Rupture) ; ...f6 (Rupture) ; Tour sur colonne e.

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3	● a6→b5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (4v2)	● c4 (2v0), ● e4 (2v1)
Cases faibles	● f2	● g5
Centre	● d4 (4v2)	● e4 (2v1)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● e

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bc2	● Bc2 Ok (mob. 3)
Bc5		● Bc5 Actif (mob. 9)
Bf5		● Bf5 Actif (mob. 6)
Paire de fous	● Oui	● Oui
Clouages	● pawn f2	—
Non développées	2 (c1, a1)	1 (a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c3-c4	● …d5-d4, ● …f7-f6

Partie
1927 Bremen – Round 4 – Brinckmann, Alfred – 1-0 – Krueger, Paul – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1944 URS-ch13 – Round ? – Bronstein, David I – 0-1 – Flohr, Salo – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1947 Mar del Plata – Round 16 – Euwe, Max – 1-0 – Eliskases, Erich – G140 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1952 POL-ch10 – Round 1 – Szymanski, Aleksander – 1-0 – Szukszta, Janus – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1952 URS Ch sf – Round ? – Byvshev, Vasily – 1-0 – Kondratiev, Pavel E – G21 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1963 Europe Team Ch qual – Round 2.11 – Unzicker, Wolfgang – 1-0 – Beni, Alfred – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1964 Moscow Ch – Round ? – Zaitsev, Igor A – 1/2-1/2 – Bebchuk, Evgeni – G87 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1966 Santa Monica – Round 6 – Fischer, Raphael – 0-1 – Larsen, Benjamin Holsko – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1967 Hastings6768 – Round 8 – Hartston, William R – 1/2-1/2 – Kaplan, Julio – G39 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1967 It II Beverwijk NED – Round 10 – Scholl, Eddie C – 1-0 – Medina-Garcia, Antonio – G20 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1967 Venice – Round 4 – Robatsch, Karl – 1-0 – Zinser, Sylvain – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1968 Corr – Round ? – Johansson, Martin 1979 – 1-0 – Hultquist Per Anders Torsten – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1968 Lugano ol (Men) fin-D – Round 7 – Constantinou, Agathoclis – 1/2-1/2 – Boutteville, Cesar – G9 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1968 Lugano ol (Men) qual-B – Round 1 – Reshevsky, Samuel – 1-0 – Boutteville, Cesar – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1969 Moskou ch-URS – Round 1 – Tukmakov, Vladimir B – 0-1 – Savon, Vladimir – G159 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1971 Moscow – Round 17 – Karpov, Anatoly – 1-0 – Savon, Vladimir Andreevichndreevich – G180 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
1975 URS Team Ch – Round 2 – Katalymov, Boris – 1/2-1/2 – Tukmakov, Vladimir B – G418 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
Bugojno 1984 – Round ? – Ljubojevic, Ljubomir – 1/2-1/2 – Timman, Jan H – G69 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
Karpov - Korchnoi World Championship Match 1978 – Round 14 – Karpov, Anatoly – 1-0 – Korchnoi, Viktor – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
KRO-tweekamp 1987 – Round 6 – Ljubojevic, Ljubomir – 0-1 – Timman, Jan H – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Bc2 O-O
Melody Amber, Rapidplay, Monaco 1995 – Round 2 – Polgar, Judit – 1/2-1/2 – Anand, Viswanathan – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
Moskou 1981 – Round 1 – Timman, Jan H – 1-0 – Geller, Efim P – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
Niksic 1983 – Round 1 – Ljubojevic, Ljubomir – 1/2-1/2 – Tal, Mikhail – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
Tilburg 1988 – Round ? – Short, Nigel D – 1/2-1/2 – Timman, Jan H – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
World Blitz 2021 – Round 7.47 – Pichot, Alan – 1-0 – Bologan, Victor – G420 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
World Championship 29th 1978 – Round 2 – Karpov, Anatoly – 1/2-1/2 – Korchnoi, Viktor – G1 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
World Championship 29th 1978 – Round 4 – Karpov, Anatoly – 1/2-1/2 – Korchnoi, Viktor – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
World Championship 30th 1981 – Round 6 – Karpov, Anatoly – 0-1 – Korchnoi, Viktor – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O
World Cup 1988 – Round ? – Short, Nigel D – 1-0 – Jussupow, Artur – G89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O

C82n — Open Baguio

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.c3 Bc5 10.Nbd2 O-O 11.Bc2 Bf5 12.Nb3

Eval: [+0.57]

Les coups candidats

12…Bg6 — 63.5% (413 parties)

Ambassadeurs : Timman, Jan H (12x), Jussupow, Artur (8x), Korchnoi, Viktor (8x), Heiermann, Ludger (7x), Ernst, Thomas (6x), Korneev, Oleg (6x), Ljubojevic, Ljubomir (5x), Armani, Giuseppe (5x)

12…Bg4 — 20.3% (132 parties)

Ambassadeurs : Karpov, Anatoly (6x), Semeniuk, Alexander A (4x), Beliavsky, Alexander G (4x), Timoscenko, Gennadij (4x), Korchnoi, Viktor (3x), Tukmakov, Vladimir B (3x), Ellinger, Peter (3x), Muehling, Werner (3x)

12…Bb6 — 9.8% (64 parties)

Ambassadeurs : Smeets, Jan (2x), Ragger, Markus (2x), Lombart, Philippe (2x), Rabovszky, Gyorgy (2x), White, Max (1x), Gossip, George (1x), Brinckmann, Alfred (1x), Krueger, Paul (1x)

12…Bxf2+ — 4.6% (30 parties)

Ambassadeurs : Murey, Jacob (6x), Seirawan, Yasser (2x), Oren, Itamar (2x), Piket, Jeroen (2x), ? (2x), Mascarenhas, Alberto Pinheiro (2x), Zak, Vladimir G (1x), Morovic Fernandez, Ivan (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12…Bg6	12…Bg4	12…Bb6	12…Bxf2+
<1800	12	67%	25%	8%	—
1800-2200	155	65%	15%	12%	5%
2200-2600	207	69%	13%	11%	6%
2600+	37	73%	16%	5%	5%

Évolution par décennie (% des parties)

Décennie	N parties	12…Bg6	12…Bg4	12…Bb6	12…Bxf2+
1880s	1	—	—	100%	—
1920s	2	—	50%	50%	—
1940s	5	—	80%	20%	—
1950s	5	—	80%	20%	—
1960s	20	15%	80%	5%	—
1970s	42	7%	83%	10%	—
1980s	160	72%	16%	6%	5%
1990s	171	74%	11%	8%	6%
2000s	97	59%	14%	15%	8%
2010s	121	74%	12%	9%	2%
2020s	26	77%	—	23%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12…Bg6	74%	77%	▲ +3.4%
12…Bg4	12%	0%	▼ -11.6%
12…Bb6	9%	23%	▲ +14.0%
12…Bxf2+	2%	0%	▼ -2.5%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 9 parties
Tal, Mikhail — 2 parties
Euwe, Max — 1 partie
Anand, Viswanathan — 1 partie
Carlsen, Magnus — 1 partie

Parties historiques

12…Bg6 — 63.5% (413 parties)

1960 — Schneider, Klaus vs Illgen, Hans — 1/2-1/2 — Detmold
1964 — Zaitsev, Igor A vs Bebchuk, Evgeni — 1/2-1/2 — Moscow RUS
1969 — Tukmakov, Vladimir B vs Savon, Vladimir A — 0-1 — ?
1971 — Karpov, Anatoly vs Savon, Vladimir — 1-0 — Moscow RUS
1975 — Georgsson, Harvey vs Pioch, Thomas — 0-1 — corr C

12…Bg4 — 20.3% (132 parties)

1922 — Rabinovich, Ilya Mar vs Platz, R. — 0-1 — Petrograd
1941 — Muilwijk, Marco vs Wijnans, Arthur — 0-1 — NED
1944 — Bronstein, David I vs Flohr, Salo — 0-1 — Moscow RUS
1947 — Ribas Hector vs Peixoto Carlos — 1-0 — Porto Alegre
1947 — Euwe, Max vs Eliskases, Erich — 1-0 — Mar del Plata ARG

12…Bb6 — 9.8% (64 parties)

1889 — White, Max vs Gossip, George — 1-0 — New York, NY USA
1927 — Brinckmann, Alfred vs Krueger, Paul — 1-0 — Bremen GER
1946 — Alvarez Martin, Pedro vs Maderna, Carlos — 0-1 — Buenos Aires ARG
1955 — Tringov, Georgi P vs Bobotsov, Milko G — 1/2-1/2 — Bulgaria ch
1969 — Tukmakov, Vladimir B vs Savon, Vladimir — 0-1 — Moskou ch-URS

12…Bxf2+ — 4.6% (30 parties)

1980 — Gruenfeld, Yehuda vs Murey, Jacob — 1/2-1/2 — Beer Sheba ISR
1982 — Arnason, Jon L vs Murey, Jacob — 0-1 — Brighton ENG
1982 — Arnason, Aevar vs Murey, Jacob — 0-1 — Brighton ENG
1984 — Morovic Fernandez, Ivan vs Murey, Jacob — 1-0 — Thessaloniki GRE
1989 — Seirawan, Yasser vs Zak, Vladimir G — 0-1 — Lugano op

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