Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● b2→c3, c3→d4	● a6→b5, c6→b5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1)	● f4 (3v1), ● g4 (2v1)
Cases faibles	—	—
Centre	● d4 (2v1), ● e5 (2v1)	—

Colonnes et diagonales

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

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bb3	● Bb3 Actif (mob. 4)
Bd6		● Bd6 Actif (mob. 10)
Bc8		● Bc8 Non développé (mob. 6)
Paire de fous	● Oui	● Oui
Non développées	3 (● b1, ● c1, ● a1)	2 (● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	semi-ouvert
Ruptures	● c3-c4	● …c6-c5

C89m — Spanish: Marshall, Main Line, 13.Re1 Qh4

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 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4 * ○ Trait aux Blancs

Ouverture — Centre semi-ouvert

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. g3 (100 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Qh3 (Dame très active (16 cases) — 100 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

└── C89m - 14.g3 - Marshall, Main Line [+0.67] · 126 parties

└── C89n - 14…Qh3 - Ruy Lopez: Marshall Attack, Modern Main Line (1943) [+0.69] · 126 parties

├── C89p - 15.Be3 - Marshall, Main Line (1964) [+0.00] · 76 parties

│ ├── C89p - 15…Bg4 - Marshall, Main Line [+0.09] · 74 parties

│ │ └── C89p - 16.Qd3 - Marshall, Main Line (1949) [+0.11] · 74 parties

│ │ ├── C89q - 16…Rae8 - Marshall, Main Line (1960) [+0.06] · 52 parties

│ │ │ ├── C89q - 17.Nd2 - Marshall, Main Line (1956) [+0.01] · 50 parties

│ │ │ │ ├── C89s - 17…Re6 - Classical Variation (1964) [+0.31] · 39 parties

│ │ │ │ │ ├── C89w - 18.a4 - Marshall, Main Line, Classical (1938) [+0.00] · 20 parties

│ │ │ │ │ │ ├── C89x - 18…Qh5 - Ruy Lopez: Marshall Attack, Main Line, Spassky Variation (1965) [+0.00] · 10 parties

│ │ │ │ │ │ ├── C89w - 18…* - Marshall, Main Line, Classical · 8 parties

│ │ │ │ │ │ └── C89y - 18…f5 - Marshall, Main Line, Classical (1963) [+0.77] · 2 parties

│ │ │ │ │ ├── C89v - 18.Qf1 - Marshall, Main Line, Classical (1952) [+0.24] · 11 parties

│ │ │ │ │ ├── C89u - 18.Bxd5 - Marshall, Main Line, Classical (1964) [-1.03] · 4 parties

│ │ │ │ │ ├── C89s - 18.* - Marshall, Main Line, Classical Variation · 3 parties

│ │ │ │ │ └── C89t - 18.c4 - Marshall, Main Line, Classical (1963) [-0.70] · 1 partie

│ │ │ │ ├── C89q - 17…* - Marshall, Main Line · 6 parties

│ │ │ │ └── C89r - 17…f5 - Pawn Push Variation (1960) [+0.22] · 5 parties

│ │ │ └── C89q - 17.* - Marshall, Main Line · 2 parties

│ │ └── C89p - 16…* - Marshall, Main Line · 22 parties

│ └── C89p - 15…* - Marshall, Main Line · 2 parties

├── C89n - 15.* - Marshall Attack, Modern Main Line · 27 parties

└── C89o - 15.Re4 - Marshall, Main Line (1947) [+0.76] · 23 parties

Les parties, variante par variante

1126 partiesC89m - 14.g3 - Marshall, Main Line

C89m — Marshall, Main Line

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 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4

Les coups candidats

14.g3 — 99.6% (10032 parties) →

Ambassadeurs : Simmelink, Joop Theo (124x), Kireev, Sergey (91x), Herzog, Klaus (61x), Wiesinger, Johann (52x), Moody, David W (47x), Beckett, Phillip J (45x), Potrata, Janko (41x), Tanti, Joseph G (40x)

14.h3 — 0.4% (37 parties)

Ambassadeurs : Mackay, Donald G (1x), McKelvie, Neil (1x), Cseleszki, Gabor (1x), Hornyak, Anthony A (1x), Sturgis, Derreck (1x), Moody, David W (1x), Aguirre Medina, Francisco (1x), Fels, Karl-Heinz (1x)

14.Be3 — 0.0% (2 parties)

Ambassadeurs : Castro Salguero, Robert Gerardo (1x), Macayo, Ricardo Luis (1x), Williams, Richard (1x), Thompson, Brian (1x)

14.Qd3 — 0.0% (2 parties)

Ambassadeurs : Lanz Calavia, José María (2x), Martins, Sérgio A. (1x), Tkachenko, Yuliya (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	14.g3	14.h3	14.Be3	14.Qd3
<1800	684	99%	1%	—	—
1800-2200	4109	100%	0%	0%	—
2200-2600	3025	100%	—	0%	0%
2600+	151	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	14.g3	14.h3	14.Be3	14.Qd3
1950s	48	98%	2%	—	—
1960s	200	100%	0%	—	—
1970s	233	100%	—	—	—
1980s	580	100%	0%	—	—
1990s	1289	100%	0%	—	—
2000s	2430	99%	1%	—	—
2010s	4209	100%	0%	0%	0%
2020s	1084	100%	0%	0%	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
14.g3	100%	100%	+0.1%
14.h3	0%	0%	-0.1%
14.Be3	0%	0%	+0.1%
14.Qd3	0%	0%	-0.0%

Joueurs célèbres

Champions du monde dans cette position

Anand, Viswanathan — 10 parties
Tal, Mikhail — 8 parties
Hou, Yifan — 5 parties
Kramnik, Vladimir — 4 parties
Karpov, Anatoly — 2 parties
Carlsen, Magnus — 1 partie

Parties historiques

14.g3 — 99.6% (10032 parties)

1950 — Makarov, Andrei vs Novotelnov, Nikolai — 0-1 — Memorial M.Chigorin, Cheliabi
1950 — Boleslavsky, Isaac vs Szabo, Laszlo — 1/2-1/2 — ?
1950 — Bely, Miklos vs Pogats, Jozsef Jr. — 1-0 — Budapest HUN
1950 — Eken, Max vs Donner, Jan-Hein — 1-0 — 15th championship
1950 — Puc, Stojan vs O'Kelly de Galway, Alberic — 1/2-1/2 — Bled SLO

14.h3 — 0.4% (37 parties)

1954 — Mackay, Donald G vs McKelvie, Neil — 0-1 — Ilford
1965 — Cseleszki, Gabor vs Hornyak, Anthony A — 0-1 — ?
1985 — Sturgis, Derreck vs Moody, David W — 0-1 — Dearborn, Mich.
1991 — De Visser, Arno vs Jong, J. de — 0-1 — NLD-Cup sf M33
1992 — Miron, Lucian-Costin vs Collins, Danielle — 0-1 — Duisburg

14.Be3 — 0.0% (2 parties)

2017 — Castro Salguero, Robert Gerardo vs Macayo, Ricardo Luis — 0-1 — ICCF
2021 — Williams, Richard vs Thompson, Brian — 0-1 — ICCF

14.Qd3 — 0.0% (2 parties)

2018 — Martins, Sérgio A. vs Lanz Calavia, José María — 0-1 — ICCF
2019 — Tkachenko, Yuliya vs Lanz Calavia, José María — 0-1 — ICCF