Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	● a2	—
Arriérés	—	—
Chaînes	● c3→d4	● a7→b6, c7→b6, f7→g6, h7→g6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● f4 (2v0), ● d5 (2v1)	—
Cases faibles	—	—
Centre	● d4 (3v2), ● d5 (2v1)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● b	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 7)
Bc4	● Bc4 Actif (mob. 7)
Bg7		● Bg7 Actif (mob. 5)
Bc8		● Bc8 Non développé (mob. 7)
Paire de fous	● Oui	● Oui
Clouages	—	● pawn f7
Non développées	2 (● c1, ● a1)	3 (● b8, ● c8, ● a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	mobile
Ruptures	—	● …c7-c5, ● …e7-e5, ● …f7-f5

D86i — Gruenfeld: Classical Exchange, Simagin, 9.O-O

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 b6 9.O-O * ● Trait aux Noirs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. f3 (Poussée — 54 % des parties) ; Qd3 (Centraliser la dame — 12 % des parties) ; Qc2 (10 % des parties) ; Be3 (Fou actif (mobilité 5), Développer c1 — 7 % des parties) ; e5 (Occuper le centre — 6 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Bb7 (Fianchetto, fou sur la grande diagonale — 87 % des parties) ; ...Nc6 (Développer b8 — 6 % des parties) ; ...Ba6 (Développer c8 — 6 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1924 BCF Ch 17th – Round 7 – Michell, Reginald – 0-1 – Price, Hubert E – G29 1. d4 1. ... Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 Nd7
1952 Helsinki olm – Round ? – Trifunovic, Petar – 1/2-1/2 – Evans, Larry M – G230 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 Nc6
1952 Rio de Janeiro – Round 8 – Szentkiralyi Toth, Vince – 0-1 – Trifunovic, Petar – G42 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. Qc2 c5
1954 Amsterdam olm – Round 1 – Porreca, Giorgio – 0-1 – Filip, Marius Liviu – G84 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1954 Bucharest – Round 14 – Wade, Robert G – 0-1 – Filip, Marius Liviu – G116 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. Qc2 Nc6
1954 Kiev ch-URS – Round 1 – Sokolsky, Alexey – 1/2-1/2 – Suetin, Alexey S – G83 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. Bd3 c5
1954 Olympiad final A – Round 1 – Arnlaugsson, Gudmundur – 1/2-1/2 – Sajtar, Jaroslav – G49 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1954 Prague zt – Round 18 – Uhlmann, Wolfgang – 1/2-1/2 – Pachman, Ludek – G103 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1954 Prague zt Prague CZE – Round 10 – Balanel, Ion – 1/2-1/2 – Sajtar, Jaroslav – G35 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. Qd3 Nc6
1954 Prague zt Prague CZE – Round 3 – Kluger, Gyula – 1/2-1/2 – Sajtar, Jaroslav – G12 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 Nc6
1954 World Championship 20th – Round 6 – Botvinnik, Mikhail – 1/2-1/2 – Smyslov, Vladimir – G6 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1955 Buenos Aires CA – Round 15 – Gligoric, Svetozar – 1-0 – Pachman, Ludek – G10 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1956 Corr – Round ? – Mastichiadis, Fotis – 1/2-1/2 – Heemsoth, Hermann – G6 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1957 It Gotha GER – Round 6 – Sliwa, Bogdan – 1/2-1/2 – Robatsch, Karl – G16 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Ba6 10. Bxa6 Nxa6
1958 Buenos Aires V – Round 8 – Buj, Pablo – 0-1 – Sanguinetti, Raul – G36 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Ba6 10. Bxa6 Nxa6
1962 Clare Benedict Cup 09th – Round 4 – Franco Raymundo, Eduardo – 1/2-1/2 – Hollis, Adrian – G12 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1963 Amsterdam – Round 3 – Kool, Gerard – 0-1 – Lehmann, Heinz – G17 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Ba6 10. Bxa6 Nxa6
1963 Bath ch-BCF – Round 7 – Bowen Solines, Alec – 0-1 – Hollis, Adrian – G60 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1964 Buenos Aires Ch – Round ? – Cruz, Raul C. – 1-0 – Reinhardt, Enrique – G30 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. Qd3 Qc8
1965 Hastings ENG – Round ? – Balashov, Yuri S – 1-0 – Hollis, Adrian – G11 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 c5
1967 GBR-ch54 Major Open – Round 11 – Griffiths, Peter C – 1-0 – Damant, C.A.S – G10 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b6 9. O-O Bb7 10. f3 Na6

D86i — Classical Exchange, Simagin (1952)

1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 O-O 8.Ne2 b6 9.O-O

Les coups candidats

9…Bb7 — 86.7% (143 parties)

Ambassadeurs : Douven, Rudy (4x), Hadi, Adrian (3x), Sajtar, Jaroslav (3x), Kindermann, Stefan (3x), Ohse, Andreas, Dr. (3x), Pachman, Ludek (2x), Lehmann, Heinz (2x), Simagin, Vladimir (2x)

9…Nc6 — 6.1% (10 parties) →

Ambassadeurs : Kalnins, Aleksandrs Alans (1x), Klovans, Janis (1x), Maier, Peter (1x), Gikas, Andreas Basilius (1x), Razuvaev, Yuri S (1x), Kupreichik, Viktor D (1x), Nicoara, Malina (1x), Leconte, Maria (1x)

9…Ba6 — 5.5% (9 parties)

Ambassadeurs : Sliwa, Bogdan (1x), Robatsch, Karl (1x), Buj, Pablo (1x), Sanguinetti, Raul (1x), Kool, Gerard (1x), Lehmann, Heinz (1x), Debarnot, Roberto (1x), Pilnick, Carl (1x)

9…e6 — 1.2% (2 parties)

Ambassadeurs : Maly, Marek (1x), Seidl, Stepan (1x), Babychuk, Vladimir (1x), Williams, Rufus H. (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	9…Bb7	9…Nc6	9…Ba6	9…e6
<1800	8	75%	—	12%	12%
1800-2200	40	80%	10%	8%	2%
2200-2600	73	89%	7%	3%	—

Évolution par décennie (% des parties)

Décennie	N parties	9…Bb7	9…Nc6	9…Ba6	9…e6
1950s	25	92%	—	8%	—
1960s	9	78%	11%	11%	—
1970s	26	88%	4%	4%	—
1980s	14	93%	7%	—	—
1990s	29	100%	—	—	—
2000s	34	85%	9%	6%	—
2010s	23	65%	17%	13%	4%
2020s	5	80%	—	—	20%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
9…Bb7	65%	80%	▲ +14.8%
9…Nc6	17%	0%	▼ -17.4%
9…Ba6	13%	0%	▼ -13.0%
9…e6	4%	20%	▲ +15.7%

Joueurs célèbres

Champions du monde dans cette position

Botvinnik, Mikhail — 2 parties
Kasparov, Garry — 1 partie

Parties historiques

9…Bb7 — 86.7% (143 parties)

1950 — Moiseev, Oleg vs Simagin, Vladimir — 0-1 — URS-ch sf Tula
1950 — Moiseev, Aleksandr vs Simagin, Vladimir — 0-1 — Tula RUS
1951 — Perez Perez, Francisco Jose vs Pilnik, Herman — 0-1 — Madrid ESP
1952 — Szentkiralyi Toth, Vince vs Trifunovic, Petar — 0-1 — Rio de Janeiro BRA
1952 — Trifunovic, Petar vs Evans, Larry — 1/2-1/2 — Helsinki olm

9…Nc6 — 6.1% (10 parties)

1963 — Kalnins, Aleksandrs Alans vs Klovans, Janis — 0-1 — ?
1971 — Razuvaev, Yuri S vs Kupreichik, Viktor D — 1-0 — USSR
1988 — Maier, Peter vs Gikas, Andreas Basilius — 0-1 — Liechtenstein
2000 — Flear, Christine vs Leconte, Jean-Olivier — 0-1 — Vichy FRA
2002 — Nicoara, Malina vs Leconte, Maria — 1-0 — France

9…Ba6 — 5.5% (9 parties)

1957 — Sliwa, Bogdan vs Robatsch, Karl — 1/2-1/2 — It Gotha GER
1958 — Buj, Pablo vs Sanguinetti, Raul — 0-1 — Buenos Aires ARG
1963 — Kool, Gerard vs Lehmann, Heinz — 0-1 — Amsterdam NED
1972 — Debarnot, Roberto vs Pilnick, Carl — 0-1 — Buenos Aires ARG
2006 — Hempson, Peter W vs Rety, John — 0-1 — Paignton

9…e6 — 1.2% (2 parties)

2013 — Maly, Marek vs Seidl, Stepan — 1/2-1/2 — Kouty nad Desnou
2020 — Babychuk, Vladimir vs Williams, Rufus H. — 1-0 — ICCF