Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, d3→e4	● a6→b5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	—
Cases faibles	—	● d5
Centre	—	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb3	● Bb3 Actif (mob. 5)
Bb7		● Bb7 Mauvais (mob. 1)
Be7		● Be7 Actif (mob. 4)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	1 (● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c3-c4, ● d3-d4	● …d5-d4

C86l — Spanish: Worrall Attack, 7…O-O 8.c3 d5 9.d3 Bb7

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.c3 d5 9.d3 Bb7 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. Rd1 (33 % des parties) ; Bg5 (Fou actif (mobilité 7), Développer c1 — 21 % des parties) ; Re1 (21 % des parties) ; exd5 (Capture en d5, Occuper le centre — 17 % des parties) ; Nbd2 (Développer b1 — 8 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Re8 (54 % des parties) ; ...d4 (Occuper le centre — 12 % des parties) ; ...Na5 (Attaquer Bb3 — 8 % des parties) ; ...dxe4 (Capture en e4, Occuper le centre — 8 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1947 Kassel – Round 6 – Niephaus, Walter – 0-1 – Schmidt, Paul Felix – G24 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. exd5 Nxd5
1970 Palma de Mallorca Interzonal – Round 15 – Huebner, Robert – 0-1 – Geller, Efim P – G212 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. Rd1 Re8
4. World Blitz 2008 – Round 4 – Amin, Bassem – 1-0 – Tkachiev, Vladislav – G27 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. Bg5 Na5
6. Euwe Memorial 1992 – Round 5 – Short, Nigel D – 1-0 – Timman, Jan H – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. Nbd2 Re8
Corus A 2010 – Round 5 – Tiviakov, Sergei – 1/2-1/2 – Karjakin, Sergey – G32 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 d5 8. d3 O-O 9. O-O Bb7 10. Re1 Re8
Corus A 2010 – Round 7 – Tiviakov, Sergei – 1/2-1/2 – Leko, Peter – G47 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Be7 7. c3 d5 8. d3 O-O 9. O-O Bb7 10. Re1 Re8
Dortmund 1995 – Round 2 – Beliavsky, Alexander G – 1-0 – Bareev, Evgeny – G10 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. Bg5 Na5
Manila Interzonal 1990 – Round 7 – Short, Nigel D – 1-0 – Huebner, Robert – G125 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. Re1 Re8
RUS vs. ROW 2002 – Round 1 – Polgar, Judit – 0-1 – Grischuk, Alexander – G7 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 O-O 8. c3 d5 9. d3 Bb7 10. Nbd2 Re8

C86l — Spanish: Worrall Attack (1947)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Qe2 b5 7.Bb3 O-O 8.c3 d5 9.d3 Bb7

Les coups candidats

10.Nbd2 — 38.1% (189 parties)

Ambassadeurs : Short, Nigel D (5x), Munguntuul, Batkhuyag (4x), Chorfi, Khaled (3x), Fernando, Diogo (3x), Almasi, Zoltan (2x), Van Riemsdijk, Herman C. (2x), Mortensen, Erling (2x), Sandehn, Kenth (2x)

10.Rd1 — 31.5% (156 parties)

Ambassadeurs : Barlov, Dragan (4x), De Groote, Ewoud (3x), Krivonosov, Oleg (2x), Safarli, Eltaj (2x), Garcia, Gildardo (2x), Vlasak, Lukas (2x), Ruiz Castillo, Joshua Daniel (2x), Lengyel, Bela (2x)

10.Bg5 — 13.5% (67 parties)

Ambassadeurs : Nunn, John D M (2x), Thipsay, Praveen M (2x), Wittal, Werner (2x), Hou, Qiang (2x), Rivise, Irving (1x), Madrid, Brixe Xander Navacilia (1x), Kadriov, Shukri (1x), Daskalov, Georgi (1x)

10.Re1 — 11.7% (58 parties)

Ambassadeurs : Tiviakov, Sergei (4x), Pietruske, Siegfried (2x), Keres, Paul (1x), Geller, Efim P. (1x), Rhodin, Bodo (1x), Homuth, Wolfgang (1x), Pantaleoni, Leone (1x), Passeri, Marco (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Nbd2	10.Rd1	10.Bg5	10.Re1
<1800	20	35%	25%	10%	15%
1800-2200	149	38%	34%	14%	11%
2200-2600	260	40%	33%	12%	10%
2600+	16	50%	19%	12%	19%

Évolution par décennie (% des parties)

Décennie	N parties	10.Nbd2	10.Rd1	10.Bg5	10.Re1
1950s	3	—	—	67%	33%
1970s	8	12%	25%	12%	25%
1980s	20	10%	45%	20%	15%
1990s	96	39%	24%	19%	11%
2000s	122	37%	35%	9%	16%
2010s	221	44%	29%	14%	8%
2020s	26	23%	54%	4%	19%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Nbd2	44%	23%	▼ -21.3%
10.Rd1	29%	54%	▲ +24.4%
10.Bg5	14%	4%	▼ -9.7%
10.Re1	8%	19%	▲ +11.5%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 1 partie

Parties historiques

10.Nbd2 — 38.1% (189 parties)

1978 — Schuck, Sebastian vs Djuric, Stefan — 0-1 — Cup Mitropa Europe
1983 — Gagarin, Vadim vs Melnikov, Vadim — 1/2-1/2 — Moscow RUS
1987 — King, Daniel J vs Howell, James C — 1-0 — Swansea ch-BCF
1990 — Galdunts, Sergey vs Sygulski, Boguslaw — 1-0 — Katowice POL
1991 — Mortensen, Erling vs Almasi, Zoltan — 1/2-1/2 — Aarhus DEN

10.Rd1 — 31.5% (156 parties)

1970 — Huebner, Robert vs Geller, Efim P. — 0-1 — Palma de Majorca ESP
1974 — Blatny, Frantisek vs Kluger, Gyula — 1/2-1/2 — Leipzig GER
1981 — Barlov, Dragan vs Trois, Francisco R.T. — 1/2-1/2 — Prague Bohemians
1984 — Eslon, Jaan vs Robertson, Ian C. — 0-1 — Ramsgate/Margate
1984 — Barlov, Dragan vs Lechtynsky, Jiri — 1/2-1/2 — Smederevska Palanka

10.Bg5 — 13.5% (67 parties)

1954 — Rivise, Irving vs Madrid, Brixe Xander Navacilia — 1-0 — Los Angeles, CA USA
1958 — Kadriov, Shukri vs Daskalov, Georgi — 1-0 — Sofia BUL
1972 — Coudari, Camille vs Bray, Ronald — 1/2-1/2 — Quebec op Montreal
1985 — Martinovic, Slobodan vs Nunn, John D M — 1/2-1/2 — Amsterdam NED
1985 — Martinovic, Jan Dominik vs Nunn, John D M — 1/2-1/2 — 04, Amsterdam OHRA

10.Re1 — 11.7% (58 parties)

1952 — Keres, Paul vs Geller, Efim P. — 1-0 — Budapest HUN
1975 — Pantaleoni, Leone vs Passeri, Marco — 1-0 — ITA corr
1975 — Pietruske, Siegfried vs Schwibbe, Rudolf — 1-0 — ?
1982 — Everett, Morgan vs Moody, David W — 1/2-1/2 — Southfield ch-MI M/X
1982 — Pares Vives, Natalia vs Casares Ripol, Fernando Jose — 1-0 — ?