D48j — Semi-Slav: Meran, Pirc Variation

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 b4 * ○ Trait aux Blancs

Ouverture — Centre mobile

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

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Plans. Na4 (78 % des parties) ; Ne2 (16 % des parties) ; e5 (Occuper le centre — 5 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

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Plans. ...c5 (Frapper le centre adverse — 74 % des parties) ; ...Bb7 (Développer c8 — 16 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● c6
Chaînes	—	● f7→e6
Passés	—	—
Majorité	—	● aile dame 3v2

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● e5 (2v1), ● g5 (2v0)	—
Cases faibles	—	—
Centre	● d4 (1v0), ● e4 (2v1), ● e5 (2v1)	● d5 (3v2)

Colonnes et diagonales

	♔ Blancs	♚ Noirs
Semi-ouvertes	● c	● d

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 5)
Bd3	● Bd3 Actif (mob. 7)
Bc8		● Bc8 Non développé (mob. 1)
Bf8		● Bf8 Non développé (mob. 3)
Paire de fous	● Oui	● Oui
Non développées	3 (● c1, ● 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	mobile
Ruptures	● d4-d5	● …c6-c5, ● …e6-e5

Partie
1931 Bled – Round 1 – Stoltz, Gosta – 1/2-1/2 – Vidmar Milan – G28 1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Ne2 c5
1931 Prague CSR – Round 16 – Erdelyi, Sandor – 0-1 – Vidmar, Marjeta – G49 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. Nc3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1932 Bad Sliac – Round 1 – Spielmann, Rudolf – 1-0 – Pirc, Vasja – G29 1. d4 Nf6 2. c4 c6 3. Nc3 d5 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Ne2 c5
1932 Bern – Round 4 – Voellmy, Erwin – 0-1 – Alekhine, Alexander – G38 1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Nc3 Nbd7 6. Bd3 a6 7. e4 dxc4 8. Bxc4 b5 9. Bd3 b4 10. e5 bxc3
1932 Trebitsch mem15 – Round 5 – Glass, Eduard – 1-0 – Kmoch, Hans – G10 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 a6 7. e4 dxc4 8. Bxc4 b5 9. Bd3 b4 10. Na4 c5
1933 Folkestone Olympiad 5th – Round 13.21 – Gruenfeld, Ernst – 1/2-1/2 – Soultanbeieff, Victor – G111 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. Nc3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 Bb7
1933 Folkestone Olympiad 5th – Round 8.25 – Stahlberg, Gideon – 1-0 – Soultanbeieff, Victor – G74 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. Nc3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. e5 bxc3
1934 Ujpest – Round 1 – Eliskases, Erich – 1/2-1/2 – Pirc, Vasja – G18 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1934 Ujpest – Round 1 – Eliskases, Erich – 1/2-1/2 – Vidmar Milan – G17 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1934 Ujpest – Round 1 – Gruenfeld, Ernst – 0-1 – Vidmar Milan – G34 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Bd3 dxc4 6. Bxc4 Nbd7 7. Nc3 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1934 Zuerich – Round 1 – Gygli, Fritz – 1-0 – Stahlberg, Gideon – G12 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1935 Moscow – Round 2 – Chekhover, Vitaly – 0-1 – Pirc, Vasja – G9 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 dxc4 6. Bxc4 Nbd7 7. Nc3 b5 8. Bd3 a6 9. e4 b4 10. Ne2 c5
1935 Moskou – Round 16 – Ragozin, Viacheslav – 1-0 – Pirc, Vasja – G77 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1935 Moskou – Round 9 – Ragozin, Viacheslav – 1/2-1/2 – Levenfish, Grigory – G51 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1936 Mar del Plata – Round 7 – Schwartzman, Alejandro – 1-0 – Bolbochan, J. – G49 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Ne2 Bb7
1936 Nottingham – Round 5 – Fine, Reuben – 1/2-1/2 – Vidmar, Milan Sr – G71 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1938 Krefeld – Round 10 – Hussong, H. – 0-1 – Diemer, Emil – G36 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1938 NED-ch10 – Round 6 – Van Scheltinga, Theo – 1-0 – Van Doesburgh, Gerrit – G6 1. d4 d5 2. c4 c6 3. Nc3 e6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Nb1 c5
1939 Amsterdam KNSB – Round 3 – Flohr, Salo – 1-0 – Fontein, J. – G6 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1939 Amsterdam VARA – Round 2 – Euwe, Max – 1-0 – Fontein, George – G3 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1941 Ventnor City – Round 4 – Mengarini, Ariel – 0-1 – Santasiere, Anthony – G10 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1946 POL Ch – Round 5 – Makarczyk, Kazimierz – 1-0 – Gadalinski, Jan – G26 1. d4 d5 2. c4 c6 3. e3 e6 4. Nc3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 Bb7
1947 Hermanis Matisons Memorial – Round 13 – Zemgalis, Elmars – 1/2-1/2 – Bogoljubow, Efim – G12 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1949 Schlechter Memorial – Round 1 – Cs. Kovacs, Laszlo – 0-1 – Puc, Stojan – G5 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Ne2 c5
1949 Venice – Round 9 – Szabados, Eugenio – 1/2-1/2 – Foltys, Jan – G66 1. d4 d5 2. Nf3 c6 3. c4 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. e5 bxc3
1956 Moscow olm fin-B – Round 7 – Prameshuber, Alexander – 1-0 – Aguilar Reyes, Lizardo de Jesus – G81 1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Ne2 c5
1961 Maroczy Memorial Budapest HUN – Round 1 – Uhlmann, Wolfgang – 1/2-1/2 – Drimer, Dolfi – G12 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1961 ROM Ch – Round 11 – Fischer, Johann – 0-1 – Drimer, Dolfi – G66 1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. e5 bxc3
1962 Torremolinos zt – Round 1 – Durão, Joaquim Manuel – 1/2-1/2 – Gereben, Erno – G9 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 Bb7
1963 Capablanca Memorial – Round 1 – Uhlmann, Wolfgang – 1/2-1/2 – Wade, Robert G – G2 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1964 Capablanca Memorial – Round 18 – Portisch, Lajos – 1/2-1/2 – Wade, Robert G – G179 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1964 HUN-YUG – Round 2.7 – Forintos, Gyozo V – 1/2-1/2 – Ciric, Dragoljub M – G13 1. c4 e6 2. Nc3 d5 3. d4 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 c5
1967 ROM Ch – Round 9 – Partos, Charles – 1-0 – Fischer, Johann – G57 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Nbd7 5. e3 c6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4 10. Na4 Bb7

D48j — Meran, Pirc Variation (1931)

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 b4

Les coups candidats

10.Na4 — 78.0% (78 parties)

Ambassadeurs : Forintos, Gyozo V (2x), Uhlmann, Wolfgang (2x), Drimer, Dolfi (2x), Wade, Robert G (2x), Ciric, Dragoljub M (1x), Kamensky, Vitaly (1x), Muravin, Ilya (1x), Aijala, Jouko (1x)

10.Ne2 — 16.0% (16 parties)

Ambassadeurs : Prameshuber, Alexander (1x), Lambert Reyes (1x), Servaty, Rudolf (1x), Striefler, Erich (1x), Stohl, Igor (1x), Slobodjan, Roman (1x), Leenders, Chris (1x), Humphrys, Phil (1x)

10.e5 — 5.0% (5 parties)

Ambassadeurs : Fischer, Johann (1x), Drimer, Dolfi (1x), Vishomirskis, Romanas (1x), Mikenas, Vladas (1x), Villeneuve, Alain (1x), Fodre, Sandor (1x), Thingstad, Even (1x), Jessen, Simon Pind (1x)

10.Ng1 — 1.0% (1 parties)

Ambassadeurs : Acebal Muniz, Antonio (1x), Cantero, A (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10.Na4	10.Ne2	10.e5	10.Ng1
<1800	1	100%	—	—	—
1800-2200	44	64%	30%	5%	2%
2200-2600	31	94%	3%	3%	—

Évolution par décennie (% des parties)

Décennie	N parties	10.Na4	10.Ne2	10.e5	10.Ng1
1950s	3	33%	33%	33%	—
1960s	11	91%	—	9%	—
1970s	5	100%	—	—	—
1980s	7	86%	—	14%	—
1990s	8	75%	25%	—	—
2000s	32	81%	16%	3%	—
2010s	28	75%	18%	4%	4%
2020s	6	50%	50%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10.Na4	75%	50%	▼ -25.0%
10.Ne2	18%	50%	▲ +32.1%
10.e5	4%	0%	▼ -3.6%
10.Ng1	4%	0%	▼ -3.6%

Parties historiques

10.Na4 — 78.0% (78 parties)

1957 — Kamensky, Vitaly vs Muravin, Ilya — 1/2-1/2 — ?
1961 — Uhlmann, Wolfgang vs Drimer, Dolfi — 1/2-1/2 — Maroczy mem Budapest HUN
1962 — Durão, Joaquim Manuel vs Gereben, Erno — 1/2-1/2 — Torremolinos ESP
1962 — Christensen, Marcus vs Balogh, Janos — 1/2-1/2 — corr ol4
1963 — Uhlmann, Wolfgang vs Wade, Robert G — 1/2-1/2 — Havana CUB

10.Ne2 — 16.0% (16 parties)

1956 — Prameshuber, Alexander vs Lambert Reyes — 1-0 — Moskou olm
1994 — Servaty, Rudolf vs Striefler, Erich — 1/2-1/2 — Bad Schussenried
1997 — Stohl, Igor vs Slobodjan, Roman — 1-0 — GER
2001 — Issakainen, Ari vs Pechenizkiy, Mykola — 1-0 — Jyvaskyla FIN
2002 — Gelzenleichter, Siegfried vs Hansen, Hans — 1-0 — Bad Sooden (21.04.-30.04)

10.e5 — 5.0% (5 parties)

1951 — Vishomirskis, Romanas vs Mikenas, Vladas — 1-0 — Vilnius LTU
1961 — Fischer, Johann vs Drimer, Dolfi — 0-1 — Romania
1987 — Villeneuve, Alain vs Fodre, Sandor — 1-0 — ?
2007 — Thingstad, Even vs Jessen, Simon Pind — 1-0 — Tromso NOR
2019 — Husák, Ján vs Vodicka, Milan — 1/2-1/2 — ICCF

10.Ng1 — 1.0% (1 parties)

2017 — Acebal Muniz, Antonio vs Cantero, A — 1/2-1/2 — Altea ESP

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