C99m — Spanish: Closed, Chigorin, 13…Nc6 14.Nb3 a5 15.Be3 a4

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 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Atouts. Les Blancs s'appuient sur la case forte g5, un fou actif en e3 et la paire de fous.

Côté adverse. Les fous enfermés en e7 et c8.

Plans. Tour sur colonne c.

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Atouts. Les Noirs s'appuient sur la paire de fous.

Côté adverse. Le fou enfermé en c2.

En contrepartie. Plusieurs pièces dorment encore (le fou c8 et la tour a8).

Plans. ...Bg4 (Développer Bc8, clouer Nf3) ; ...d5 (Rupture) ; Tour sur colonne c.

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	● g2→h3	● b5→a4, d6→e5
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● g5 (2v0)	—
Cases faibles	● d4	—
Centre	● d4 (4v2)	—

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Ouvertes	● c	● c

Pièces

	♔ Blancs	♚ Noirs
Bc2	● Bc2 Enfermé (mob. 2)
Be3	● Be3 Actif (mob. 5)
Be7		● Be7 Enfermé (mob. 1)
Bc8		● Bc8 Non développé (mob. 7)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	2 (c8, a8)

Sécurité du roi

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

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● d4-d5	● …d6-d5

Partie
1945 Mar del Plata – Round 11 – Luckis, Marcos – 1/2-1/2 – Najdorf, Miguel – G32 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. h3 O-O
1953 Candidats Tournament – Round 7 – Boleslavsky, Isaac – 1/2-1/2 – Reshevsky, Samuel – G45 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1954 Moscow Ch 32th – Round ? – Ravinsky, Grigory – 1-0 – Zagorovsky, Vladimir – G8 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 d6 9. h3 Na5 10. Bc2 c5
1956 URS Ch sf – Round ? – Nezhmetdinov, Rashid – 1/2-1/2 – Tarasov, Vitaly – G105 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1956 USSR Ch Semifinal – Round 5 – Kotkov, Yuri – 1/2-1/2 – Polugaevsky, Lev – G7 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 d6 9. h3 Na5 10. Bc2 c5
1958 Jonkoping – Round 6 – Koskinen, Heikki – 1-0 – Nilsson, Zandor – G15 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1964 Hastings6465 – Round 8 – Gligoric, Svetozar – 0-1 – Keres, Paul Petrovich – G37 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Capablanca Memorial – Round 3 – Geller, Efim P – 1/2-1/2 – Ivkov, Borislav – G30 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Capablanca Memorial – Round 8 – Parma, Bruno – 1/2-1/2 – Haro Garcia, Gilberto – G83 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Chigorin Memorial – Round 13 – Krogius, Nikolai V – 1/2-1/2 – Antoshin, Vladimir S – G65 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Chigorin Memorial – Round 3 – Ciric, Dragoljub M – 1/2-1/2 – Antoshin, Vladimir S – G13 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 HUN Ch 20th – Round ? – Haag, Ervin – 1/2-1/2 – Pogats, Jozsef Jr. – G19 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Novi Sad – Round 3 – Parma, Bruno – 1-0 – Sokolov, Vladimir – G40 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Tbilisi Tbilisi GEO – Round ? – Jansa, Vlastimil – 1/2-1/2 – Gipslis, Aivars – G69 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1965 Zagreb – Round 16 – Parma, Bruno – 1/2-1/2 – Antoshin, Vladimir S – G164 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1966 Ch (Men) Budapest HUN – Round 3 – Szilagyi, Peter – 1-0 – Forintos, Gyozo V – G4 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1966 La Habana olm prel – Round 5 – Petrosian, Tigran V – 1/2-1/2 – Alvarez del Monte, Jose – G203 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1966 Student Olympiad fA – Round 8 – Spassov, Liuben – 1/2-1/2 – Scholl, Eddie C – G12 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1966 URS Team Ch – Round ? – Shianovsky, Vladislav I – 1/2-1/2 – Klovans, Janis – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1968 Capablanca Memorial – Round ? – O'Kelly, Albéric de Galway – 1/2-1/2 – Antoshin, Vladimir S – G82 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1968 CB Cup Bad Aibling GER – Round 1 – Clarke, Peter H – 1/2-1/2 – Glauser, Hansruediger – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1968 Clare Benedict Cup 15th – Round 1 – Clarke, Peter H – 1/2-1/2 – Glauser, Hansruediger – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1968 Lugano ol (Men) – Round ? – Penrose, Jonathan – 1-0 – Porath, Yosef – G98 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
1969 Zagreb – Round 13 – Barczay, Laszlo – 1/2-1/2 – Zinser, Sylvain – G92 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5
Moscow Interzonal 1982 – Round 4 – Murey, Jacob – 1-0 – Beliavsky, Alexander G – G18 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5

C99m — Closed Chigorin

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 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4

Eval: [+0.36]

Les coups candidats

16.Nbd2 — 99.5% (4050 parties)

Ambassadeurs : Zielinski, Sergej (142x), Pott, Brian (47x), Wiesinger, Johann (33x), Gromotka, Harry (31x), Detela, Walter (30x), Malyshev, Vladimir Pavlovich (30x), Salzmann, Stefan (24x), Sorcinelli, Andrea (24x)

16.Nc1 — 0.4% (17 parties)

Ambassadeurs : Zapata, Alonso (2x), Henao, Raul Fernando (2x), Litsberger, Rune (1x), Santesson Kjell (1x), Blackstone, John (1x), Almgren, Sven (1x), Tringov, Georgi P (1x), Simic, Radoslav K (1x)

16.Rc1 — 0.0% (1 parties)

Ambassadeurs : ? (1x), QUARK (1x)

16.dxe5 — 0.0% (1 parties)

Ambassadeurs : Flecher, Joseph (1x), Shaw, Sidney S (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	16.Nbd2	16.Nc1	16.Rc1	16.dxe5
<1800	79	100%	—	—	—
1800-2200	1269	100%	0%	—	0%
2200-2600	2035	100%	0%	—	—
2600+	85	100%	—	—	—

Évolution par décennie (% des parties)

Décennie	N parties	16.Nbd2	16.Nc1	16.Rc1	16.dxe5
1940s	15	100%	—	—	—
1950s	17	100%	—	—	—
1960s	52	96%	4%	—	—
1970s	66	100%	—	—	—
1980s	155	97%	3%	—	—
1990s	206	99%	1%	—	—
2000s	1484	100%	0%	0%	—
2010s	1852	100%	0%	—	0%
2020s	223	99%	0%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
16.Nbd2	100%	99%	▼ -0.7%
16.Nc1	0%	0%	+0.3%
16.Rc1	0%	0%	+0.0%
16.dxe5	0%	0%	-0.1%

Joueurs célèbres

Champions du monde dans cette position

Tal, Mikhail — 2 parties
Anand, Viswanathan — 2 parties
Karpov, Anatoly — 1 partie
Kramnik, Vladimir — 1 partie

Parties historiques

16.Nbd2 — 99.5% (4050 parties)

1942 — Pinkus, Albert vs Levin, Jerome A — 1-0 — Ventnor City
1944 — EBUK EMMANUEL JACKSON vs Reshevsky, Samuel — 0-1 — Boston, MA USA
1945 — Luckis, Marcos vs Najdorf, Miguel — 1/2-1/2 — Mar del Plata ARG
1945 — Benko, Francisco vs Najdorf, Miguel — 1/2-1/2 — mem R.Grau Buenos Ai
1945 — Benko, Francisco vs Najdorf, Miguel — 1/2-1/2 — Buenos Aires ARG

16.Nc1 — 0.4% (17 parties)

1962 — Blackstone, John vs Almgren, Sven — 1-0 — Fresno, CA
1967 — Litsberger, Rune vs Santesson Kjell — 0-1 — Stockholm SWE
1982 — Tringov, Georgi P vs Simic, Radoslav K — 1/2-1/2 — Vrnjacka Banja SRB
1982 — Martinovic, Slobodan vs Padevsky, Nikola — 1/2-1/2 — Pamporovo
1988 — Zapata, Alonso vs Henao, Raul Fernando — 1/2-1/2 — Saint John

16.Rc1 — 0.0% (1 parties)

2003 — ? vs QUARK — 0-1 — Graz AUT

16.dxe5 — 0.0% (1 parties)

2010 — Flecher, Joseph vs Shaw, Sidney S — 0-1 — ICCF