B22q — Alapin

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Nf3 Nc6 7.Qe4 f5 8.Qe2 Qc7 9.g3 ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Bg2 (Fianchetto, fou sur la grande diagonale — 53 % des parties) ; Na3 (Développer b1 — 12 % des parties) ; c4 (Frapper le centre adverse — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...b5 (Expansion aile dame — 32 % des parties) ; ...d6 (Libérer Bc8 — 24 % des parties) ; ...b6 (Préparer le fianchetto — 23 % des parties) ; ...Nde7 (18 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● d7
Chaînes	● b2→c3, f2→g3, h2→g3	● e6→f5, d7→e6
Passés	—	—
Majorité	● aile dame 3v2	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● d4 (2v1), ● f4 (2v1), ● g5 (2v0)	—
Cases faibles	—	● e5
Centre	● d4 (2v1)	● d5 (1v0)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● d	● c

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bf1	● Bf1 Non développé (mob. 2)
Bc8		● Bc8 Non développé (mob. 0)
Bf8		● Bf8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	5 (● b1, ● c1, ● f1, ● a1, ● h1)	4 (● 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	fermé
Ruptures	—	● …d7-d6, ● …f5-f4

Partie
1963 Hoogovens-C – Round 1 – Canal, Esteban – 1-0 – Kramer, Hanspeter – G4 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 f5 8. Qe2 Qc7 9. g3 b5 10. Bg2 a5
1967 Mar del Plata Open – Round 4 – Benko, Francisco – 1-0 – Quinteros, Miguel A. – G14 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 f5 8. Qe2 Qc7 9. g3 Nde7 10. Na3 Ng6
Tal Memorial Blitz 2008 – Round 26 – Kamsky, Gata – 1/2-1/2 – Grischuk, Alexander – G216 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Qxd4 e6 6. Nf3 Nc6 7. Qe4 f5 8. Qe2 Qc7 9. g3 Nde7 10. Na3 Ng6

B22q — Alapin (1963)

1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Qxd4 e6 6.Nf3 Nc6 7.Qe4 f5 8.Qe2 Qc7 9.g3

Les coups candidats

9…b5 — 31.7% (132 parties)

Ambassadeurs : Deviatkin, Andrei (6x), Terao, Juliana Sayumi (6x), Boe, Mads (4x), Naiditsch, Jevgenija (4x), Klyuner, Vyacheslav (4x), Peterson, Eric (3x), Tondo, Salvatore (3x), Zaitsev, Mikhail (3x)

9…d6 — 23.8% (99 parties)

Ambassadeurs : Vorotnikov, Vladislav V (4x), Deviatkin, Andrei (4x), Shishkov, Pavel Aleksandrovic (4x), Oaker, William R (3x), Kranzl, Peter (3x), Peterson, Eric (3x), Lukin, Andrei M (2x), Langlois, Charles (2x)

9…b6 — 23.1% (96 parties)

Ambassadeurs : Terao, Juliana Sayumi (4x), Maccagno, Giancarlo (3x), Jackson, Oliver A (3x), Kitces, Edward (2x), Zaitsev, Mikhail (2x), Deviatkin, Andrei (2x), Terao, Rodrigo Akira (2x), Tsuboi, Edson Kenji (2x)

9…Nde7 — 18.3% (76 parties)

Ambassadeurs : Rozentalis, Eduardas (5x), Vorotnikov, Vladislav V (2x), Yakovich, Yuri (2x), Mellado Trivino, Juan (2x), Benko, Francisco (1x), Quinteros, Miguel A. (1x), Thompson, Dexter (1x), Vehre, John (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…b5	9…d6	9…b6	9…Nde7
<1800	17	41%	12%	29%	12%
1800-2200	130	33%	22%	31%	12%
2200-2600	219	32%	23%	20%	23%
2600+	1	—	—	—	100%

Évolution par décennie (% des parties)

Décennie	N parties	9…b5	9…d6	9…b6	9…Nde7
1960s	2	50%	—	—	50%
1970s	9	22%	44%	11%	11%
1980s	25	4%	24%	28%	40%
1990s	70	17%	36%	17%	26%
2000s	188	41%	23%	16%	15%
2010s	109	31%	17%	39%	11%
2020s	13	31%	8%	23%	38%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…b5	31%	31%	-0.4%
9…d6	17%	8%	▼ -9.7%
9…b6	39%	23%	▼ -15.5%
9…Nde7	11%	38%	▲ +27.5%

Parties historiques

9…b5 — 31.7% (132 parties)

1963 — Canal, Esteban vs Kramer, Hanspeter — 1-0 — Beverwijk NED
1972 — Benko, Francisco vs Soria Villen, Alejandro — 0-1 — Mar del Plata ARG
1978 — Rogers, Ian vs Van der Sterren, Paul — 0-1 — Eerbeek NED
1981 — Kappler, Jean-Marie vs Duche, Jean — 0-1 — Vitrolles
1991 — Tondo, Salvatore vs Agnello, Giuseppe — 0-1 — Siracusa op

9…d6 — 23.8% (99 parties)

1975 — Haubt, Georg vs Gmeiner, Peter — 1-0 — Stadtallendorf
1978 — Vorotnikov, Vladislav V vs Tseitlin, Mark D — 1/2-1/2 — Leningrad ch-city
1978 — Vorotnikov, Vladislav V vs Zilberstein, Valery I — 1/2-1/2 — Daugavpils LAT
1979 — Sveshnikov, Evgeny vs Ungureanu, Emil — 0-1 — Dubna
1980 — Vorotnikov, Vladislav V vs Lukin, Andrei M — 1/2-1/2 — Leningrad ch-city

9…b6 — 23.1% (96 parties)

1976 — Baker, Calum vs Basman, Michael J — 0-1 — London ENG
1981 — Krivun, Nikolay Minovich vs Friedman, Aviv — 1/2-1/2 — USSR corr
1983 — Boulle, Antoine vs Henning, Martin — 1-0 — South Africa
1986 — Hardy, Otto Henry vs Hills, KB. — 1-0 — Derby
1986 — McCormick, Alan vs London, Alexander H — 0-1 — New Jersey

9…Nde7 — 18.3% (76 parties)

1967 — Benko, Francisco vs Quinteros, Miguel A. — 1-0 — Mar del Plata ARG
1974 — Vorotnikov, Vladislav V vs Lukin, Andrei M — 1-0 — Tbilisi GEO
1980 — Schulien, Charles vs Benko, Pal — 0-1 — Ohio
1983 — Vorotnikov, Vladislav V vs Ionov, Sergey — 1/2-1/2 — Moscow RUS
1984 — Thompson, Dexter vs Vehre, John — 0-1 — USA

1963 Hoogovens-C – Round 1 – Canal, Esteban – 1-0 – Kramer, Hanspeter – G4

1967 Mar del Plata Open – Round 4 – Benko, Francisco – 1-0 – Quinteros, Miguel A. – G14

Tal Memorial Blitz 2008 – Round 26 – Kamsky, Gata – 1/2-1/2 – Grischuk, Alexander – G216