B45w — Sicilian: Taimanov, Four Knights, 6.Ndb5 Bb4 7.a3, 10.Bd3 O-O 11.O-O d4 12.Ne2

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.Nxc3 d5 9.exd5 exd5 10.Bd3 O-O 11.O-O d4 12.Ne2 * ● Trait aux Noirs

Ouverture — Centre asymétrique

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : majorité aile_dame (3v2), case forte f4, Bd3 actif, paire de fous, colonne d.
Faiblesses adverses : isolé d4, Bc8 enfermé.
Problèmes : Bc1 enfermé.
Plans :
● Bg5 — Clouer Nf6
● Re — Tour sur colonne e
● Rd — Tour sur colonne d

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : majorité centre (1v0), case forte d4, case forte g4, case forte d5, colonne c.
Faiblesses adverses : Bc1 enfermé.
Problèmes : Bc8 enfermé, isolé d4.
Plans :
● ...Bf5 — Développer Bc8
● ...Re — Tour sur colonne e
● ...Rc — Tour sur colonne c

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

B45w — Taimanov Four Knights

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.Nxc3 d5 9.exd5 exd5 10.Bd3 O-O 11.O-O d4 12.Ne2

Eval: [+0.28]

Les coups candidats

12…Bg4 — 61.5% (1265 parties)

Ambassadeurs : Van Riemsdijk, Herman C. (21x), Dovzik, Juri (12x), Federic, Jozef (10x), Ptacnikova, Lenka (8x), Demchenko, Igor Nikolaevich (8x), Karasinska, Magdalena (8x), Tregubov, Pavel V. (8x), Fareh, Youness (7x)

12…Qd5 — 17.2% (355 parties)

Ambassadeurs : Goncharenko, Georgy (12x), Khenkin, Igor (10x), Lots, Stepan (6x), Baron Isanta, Jose Maria (6x), Maljutin, Evgeni (5x), Boguslawsky, Maxim (4x), Faldt, Magnus (4x), Mellado Trivino, Juan (4x)

12…Re8 — 11.5% (236 parties)

Ambassadeurs : Baciu, Diana (7x), Doibani, Lilia (5x), Moreno Tejera, Emilio (4x), Andres Gonzalez, Ivan (4x), Recuero Guerra, David (4x), Rusev, Krasimir (4x), Zurkowski, Andrzej (4x), Petrov, Marian (4x)

12…h6 — 4.7% (97 parties)

Ambassadeurs : Grobler, David (3x), Winants, Luc (2x), Ros, Aksel (2x), Bangiev, Alexander (2x), Dutreeuw, Marc (2x), Gaertner, Guntram (2x), Lahdenmaeki, Leo (2x), Zhang, Yuanchen (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	12…Bg4	12…Qd5	12…Re8	12…h6
<1800	52	71%	13%	4%	8%
1800-2200	743	66%	13%	12%	3%
2200-2600	1041	61%	19%	11%	4%
2600+	27	63%	26%	11%	—

Évolution par décennie (% des parties)

Décennie	N parties	12…Bg4	12…Qd5	12…Re8	12…h6
1940s	1	—	100%	—	—
1950s	3	67%	33%	—	—
1960s	18	33%	33%	6%	22%
1970s	26	31%	23%	4%	31%
1980s	71	46%	13%	1%	24%
1990s	270	27%	48%	11%	8%
2000s	710	57%	19%	17%	3%
2010s	755	73%	9%	10%	2%
2020s	204	91%	1%	2%	3%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
12…Bg4	73%	91%	▲ +18.2%
12…Qd5	9%	1%	▼ -7.9%
12…Re8	10%	2%	▼ -8.0%
12…h6	2%	3%	▲ +1.3%

Joueurs célèbres

Champions du monde dans cette position

Karpov, Anatoly — 1 partie
Anand, Viswanathan — 1 partie
Kramnik, Vladimir — 1 partie
Kasparov, Garry — 1 partie

Parties historiques

12…Bg4 — 61.5% (1265 parties)

1957 — Lendl, Jiri vs Sedlacek, Petr — 1/2-1/2 — Brno CZE
1959 — Kostro, Jerzy vs Szpakowski, Marek — 1-0 — Lodz ch POL
1962 — Aronin, Lev vs Zaitsev, Alexander — 1-0 — Erevan ch-URS
1962 — Kirillov, Vladimir vs Zaitsev, Alexander — 1/2-1/2 — Minsk BLR
1962 — Khasin, Abram vs Zaitsev, Alexander — 1/2-1/2 — Minsk BLR

12…Qd5 — 17.2% (355 parties)

1942 — Pilnik, Herman vs Corte, Cesar J — 1-0 — Mar del Plata ARG
1952 — Bobotsov, Milko G vs Karastoichev, Emil — 1/2-1/2 — Sofia BUL
1965 — Stephenson, Frederick Norman vs Scholes, James Edward — 1-0 — Whitby
1967 — Sakharov, Yuri N vs Alburt, Lev — 0-1 — Kharkov UKR
1967 — Kirpichnikov, Vladimir vs Adler, Viktor — 0-1 — Soviet Union

12…Re8 — 11.5% (236 parties)

1962 — Freidin vs Ignatiev, Aleksey — 0-1 — Moscow RUS
1971 — Cross, Robert Gary vs Bornholz Robert — 1-0 — corr NAICCC I
1988 — Seirawan, Yasser vs Comp Leonardo Maestro — 1-0 — Zurich simultaan
1991 — Kranabetter Anton vs Anreiter, Alois — 1/2-1/2 — corr
1991 — Brandl, Josef vs Anreiter, Alois — 1-0 — ?

12…h6 — 4.7% (97 parties)

1966 — Adamski, Jan vs Filipowicz, Andrzej — 1/2-1/2 — Rzeszow ch POL
1966 — Larusson, Gudmundur vs Mertens, Paul — 1/2-1/2 — Orebro SWE
1969 — Schmid, Lothar vs Browne, Walter Shawn — 1/2-1/2 — San Juan
1969 — McKay, Roderick M vs Urzica, Aurel — 1/2-1/2 — Stockholm SWE
1972 — Kastner, Jeffrey vs Martin, Thomas — 1-0 — Atlantic City

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	● d4
Arriérés	—	—
Chaînes	● b2→a3	—
Passés	—	—
Majorité	● aile_dame 3v2	● centre 1v0

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0)	● d4 (2v1), ● g4 (2v0), ● d5 (2v0)
Cases faibles	—	—
Centre	—	● d4 (2v1), ● d5 (2v0), ● e5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● e	● e
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bd3	● Bd3 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	Non
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	asymétrique
Ruptures	● c2-c3, ● c2-c4, ● f2-f3	—

Partie
1942 Mar del Plata – Round 9 – Pilnik, Herman – 1-0 – Corte, Cesar J – G78 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1959 Lodz ch POL – Round 1 – Kostro, Jerzy – 1-0 – Szpakowski, Marek – G4 1. e4 c5 2. Nf3 e6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1962 Erevan ch-URS – Round 1 – Aronin, Lev – 1-0 – Zaitsev, Alexander – G87 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1962 Spartak Ch – Round 1 – Khasin, Abram – 1/2-1/2 – Zaitsev, Alexander – G5 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 d4
1962 Spartak Ch – Round 12 – Kirillov, Vladimir – 1/2-1/2 – Zaitsev, Alexander – G95 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1965 Mar del Plata – Round 2 – Stein, Leon Rico – 1/2-1/2 – Acosta Garcia, Rafael Isaac – G18 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 d4
1965 Rubinstein Memorial – Round 8 – Matulovic, Milan – 1-0 – Filipowicz, Andrzej – G34 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1966 Rzeszow ch POL – Round 5 – Adamski, Jan – 1/2-1/2 – Filipowicz, Andrzej – G30 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1968 Varna BUL – Round 9 – Sakharov, Yuri N – 1/2-1/2 – Nikolaevsky, Yuri V – G25 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1969 Rubinstein Memorial – Round 6 – Bednarski, Jacek – 1/2-1/2 – Barczay, Laszlo – G22 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
1969 San Juan – Round 2 – Schmid, Lothar – 1/2-1/2 – Browne, Walter S – G15 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 d4
40. Olympiad Open 2012 – Round 6.2 – Palac, Mladen – 1/2-1/2 – Safarli, Eltaj – G362 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
40. Olympiad Open 2012 – Round 7.1 – Grischuk, Alexander – 1-0 – Safarli, Elmir – G396 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
63. ch-USA 2019 – Round 7.4 – Dominguez Perez, Leinier – 1-0 – Lenderman, Aleksandr – G40 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
FIDE WCh KO 2000 – Round 2.5 – Macieja, Bartlomiej – 0-1 – Krasenkow, Michal – G88 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Bb4 6. Nb5 Nf6 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
FIDE WCh KO 2001 – Round 1.3 – Asrian, Karen – 1/2-1/2 – Khenkin, Igor – G125 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
Munich Express 1994 – Round ? – Short, Nigel D – 1/2-1/2 – Kramnik, Vladimir – G7 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
Paris Immopar rapid 1992 – Round 1 – Kamsky, Gata – 1-0 – Lautier, Joel – G7 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
PCA/Intel-GP 1994 – Round 1 – Anand, Viswanathan – 1/2-1/2 – Smirin, Ilia – G8 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
Pearl Spring 2008 – Round 8 – Topalov, Veselin – 1-0 – Ivanchuk, Vasyl – G20 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
SuperGM 2001 – Round 8 – Leko, Peter – 1/2-1/2 – Grischuk, Alexander – G17 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
World Blitz 2016 – Round 14.39 – Adhiban, B. – 0-1 – Tregubov, Pavel V. – G570 1. e4 c5 2. Nc3 e6 3. Nge2 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O
World Blitz 2016 – Round 2.46 – Volokitin, Andrei – 1/2-1/2 – Tregubov, Pavel V. – G87 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. a3 Bxc3+ 8. Nxc3 d5 9. exd5 exd5 10. Bd3 O-O

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