A92k - 6.O-O d5 7.Qc2 - Stonewall (1959)

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A92k — Stonewall (1959)
1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 O-O 6.O-O d5 7.Qc2
Les coups candidats
Ambassadeurs : Zwaneveld, Ansel (6x), Guimard, Carlos E (5x), Bakheet Farag (4x), Mariotti, Sergio (4x), Rapaka Samuel Paul (3x), Stoppel, Franz (3x), Chistiakov, Alexander (3x), Schmidt, Wlodzimierz (3x)
7…Nc6 — 11.2% (39 parties)
Ambassadeurs : Lengyel, Levente (2x), Oppedal, David (2x), Katz, Stewart (2x), Spassky, Boris V. (2x), Bern, Ivar (2x), Lheureux, Joseph (2x), Zwaneveld, Ansel (2x), Bellin, Robert (2x)
7…Ne4 — 8.3% (29 parties)
Ambassadeurs : Gleizerov, Evgeny (3x), Ulybin, Mikhail (2x), Akguney, Hasim (2x), Coutrea, K (1x), Kopec, Danny (1x), Arbinger, Roland, Dr. (1x), Weigand, Bernhard, Prof. Dr. (1x), Peregudov, Y. (1x)
7…Bd7 — 1.7% (6 parties)
Ambassadeurs : Malmstroem, Jan Hendrik (2x), Speelman, Jon S (1x), Short, Nigel D (1x), Slipak, Sergio (1x), Minzer, Claudio Javier (1x), Zwaneveld, Ansel (1x), Lheureux, Joseph (1x), Kozak, Milos (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 7…c6 7…Nc6 7…Ne4 7…Bd7
<1800 16 75% 19% — 6%
1800-2200 106 75% 8% 11% 2%
2200-2600 134 71% 16% 11% 1%
2600+ 2 — — 50% 50%
Évolution par décennie (% des parties)
Décennie N parties 7…c6 7…Nc6 7…Ne4 7…Bd7
1950s 17 94% — — —
1960s 23 96% — — —
1970s 29 76% 17% — —
1980s 40 85% 8% 2% —
1990s 71 77% 13% 4% 3%
2000s 80 64% 16% 6% 4%
2010s 70 74% 11% 13% 1%
2020s 19 26% 5% 58% —
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
7…c6 74% 26% ▼ -48.0%
7…Nc6 11% 5% ▼ -6.2%
7…Ne4 13% 58% ▲ +45.0%
7…Bd7 1% 0% ▼ -1.4%
Parties historiques
7…c6 — 73.6% (257 parties)
1950 — Ricci, Giorgio vs Staldi, Cherubino — 0-1 — Sorrento ITA
1950 — Ricci, Marco vs Staldi, Cherubino — 0-1 — Sorrento ch
1951 — Rapaka Samuel Paul vs Byrne, Robert E — 1-0 — New York, NY USA
1951 — Rapaka Samuel Paul vs Byrne, Robert E — 1-0 — New York, NY USA
1952 — Geller, Efim P. vs Prado, Lucas Muller — 1-0 — Helsinki olm
7…Nc6 — 11.2% (39 parties)
1971 — Oppedal, David vs Katz, Stewart — 1-0 — Sacramento,CA HS ch
1971 — Lengyel, Levente vs Spassky, Boris V. — 0-1 — Moscow RUS
1971 — Lengyel, Laszlo vs Spassky, Boris V. — 0-1 — Moscow RUS
1971 — Oppedal, David vs Katz, Stewart — 1-0 — Rio Americano HS Team;Califor
1972 — Lengyel, Levente vs Kriz, Miroslav — 1/2-1/2 — Reggio Emilia ITA
7…Ne4 — 8.3% (29 parties)
1989 — Coutrea, K vs Kopec, Danny — 0-1 — New Hampshire op
1991 — Arbinger, Roland, Dr. vs Weigand, Bernhard, Prof. Dr. — 0-1 — Hessen
1992 — Michaelsen, Nils vs Weissenbeck, Manuel — 1/2-1/2 — Oberwart AUT
1998 — Peregudov, Y. vs Pres, Grigorij — 1/2-1/2 — Tomsk RUS
2002 — Lohmann, Heinrich vs Koch, Hans-Georg — 1/2-1/2 — ICCF Email
7…Bd7 — 1.7% (6 parties)
1991 — Speelman, Jon S vs Short, Nigel D — 1-0 — London ENG
1995 — Slipak, Sergio vs Minzer, Claudio Javier — 1-0 — Buenos Aires ARG
2000 — Lheureux, Joseph vs Malmstroem, Jan Hendrik — 0-1 — IECG
2002 — Zwaneveld, Ansel vs Malmstroem, Jan Hendrik — 0-1 — IECG
2006 — Kozak, Milos vs Maliszewski, Jaroslaw — 1/2-1/2 — ?