Structure de pions

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	—
Chaînes	—	● b7→a6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	—	● d4 (2v1)
Cases faibles	—	—
Centre	● d5 (1v0)	● d4 (2v1)

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Bc1	● Bc1 Non développé (mob. 0)
Ba4	● Ba4 Ok (mob. 3)
Bb4		● Bb4 Actif (mob. 8)
Bc8		● Bc8 Non développé (mob. 0)
Paire de fous	● Oui	● Oui
Clouages	● pawn d2	—
Non développées	4 (● b1, ● c1, ● a1, ● h1)	4 (● g8, ● c8, ● 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	fermé
Ruptures	● d2-d4	● …d7-d5, ● …f7-f5

C70g — Spanish: Alapin Deferred

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Bb4 * ○ Trait aux Blancs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Plans. c3 (Renforcer le centre — 66 % des parties) ; O-O (Mettre le roi en sécurité, connecter les tours — 30 % des parties).

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Plans. ...Ba5 (Clouer d2 — 43 % des parties) ; ...Nge7 (Développer g8 — 23 % des parties) ; ...Bc5 (Fou actif (mobilité 10) — 14 % des parties) ; ...Be7 (Fou actif (mobilité 8) — 7 % des parties).

Avantages

Faiblesses

Diagonale active

Plans

Partie
1905 Ostende – Round 7 – D Marco, Gianni – 1/2-1/2 – Alapin, Simon – G23 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. c3 Ba5 6. Bxc6 dxc6 7. Nxe5 Qe7 8. d4 f6 9. Nc4 Qxe4+ 10. Qe2 Qxe2+
1908 Prague – Round 3 – Prokes, Jaromir – 1-0 – Alapin, Simon – G36 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. c3 Ba5 6. O-O Nge7 7. d4 exd4 8. cxd4 d5 9. exd5 Qxd5 10. Bb3 Qh5
1945 London Championship – Round 1 – Aitken, James – 1-0 – Diggle, Geoffrey Harber – G2 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. c3 Ba5 7. d4 exd4 8. cxd4 d5 9. exd5 Qxd5 10. Nc3 Bxc3
1948 GBR Ch 35th – Round 5 – Aitken, James – 1/2-1/2 – Ritson-Morry, William – G16 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. c3 Ba5 7. Qe2 O-O 8. d3 d6 9. b4 Bb6 10. Na3 Bg4
1948 Saltsjobaden Interzonal – Round 5 – Boleslavsky, Isaac – 1/2-1/2 – Tartakower, Savielly – G44 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. d4 exd4 7. Nxd4 b5 8. Bb3 O-O 9. c3 Nxd4 10. Qxd4 Nc6
1948 Stockholm – Round 1 – Boleslavsky, Isaac – 1/2-1/2 – Tartakower, Savielly – G17 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. d4 exd4 7. Nxd4 b5 8. Bb3 O-O 9. c3 Nxd4 10. Qxd4 Nc6
1950 Bled – Round 11 – Fuderer, Andrija – 1-0 – Tartakower, Savielly – G58 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. c3 Ba5 7. d4 exd4 8. b4 Bb6 9. cxd4 O-O 10. d5 Na7
1952 Hollywood – Round 1 – Dake, Arthur William – 1/2-1/2 – Steiner, Heinrich Jun. – G28 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. Nc3 O-O 7. Nd5 Bc5 8. Bb3 d6 9. d4 exd4 10. Bg5 Bg4
1952 USA Ch playoff – Round 7 – Evans, Larry M – 1/2-1/2 – Steiner, Herman – G5 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. c3 Ba5 6. Na3 b5 7. Bb3 Nf6 8. O-O O-O 9. d4 d6 10. dxe5 Nxe5
1953 Mar del Plata – Round 13 – Medina-Garcia, Antonio – 1/2-1/2 – Steiner, Heinrich Jun. – G137 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. c3 Ba5 7. d4 exd4 8. e5 O-O 9. Bg5 dxc3 10. Nxc3 Bxc3
1953 Mar del Plata – Round 17 – Bolbochan, J. – 1/2-1/2 – Steiner, Heinrich Jun. – G169 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. c3 Ba5 6. O-O Nge7 7. d4 exd4 8. Nxd4 O-O 9. Bb3 Nxd4 10. Qxd4 Bb6
1955 URS Ch sf – Round 1 – Kholmov, Ratmir D – 1/2-1/2 – Gusev, Aleksandr – G56 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. O-O Nge7 6. c3 Ba5 7. d4 exd4 8. Nxd4 O-O 9. Bg5 Qe8 10. Nd2 b5
1958 WchT U26 fin-A 05th – Round 4 – Bogdanovic, Rajko – 1-0 – Foldi, Jozsef – G41 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. c3 Ba5 6. O-O Nge7 7. b4 Bb6 8. Na3 Ba7 9. Bb3 O-O 10. Nc4 d6
1965 Budapest HUN – Round 1 – Filipowicz, Andrzej – 1-0 – Meleghegyi, Csaba – G8 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. c3 Ba5 6. O-O Nge7 7. d3 O-O 8. Be3 b5 9. Bc2 Rb8 10. Nbd2 d6
1968 Lugano olm - Round 1 - Rubinetti, Jorge - 1-0 - Roebuck, E. - G418 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bb4 5. Bb3 Bc5 6. c3 d6 7. d4 exd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Nbxd2 Na5

C70g — Ruy Lopez: Morphy Defense, Alapin's Defense Deferred (1905)

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Bb4

Les coups candidats

5.c3 — 66.3% (55 parties)

Ambassadeurs : Babits, Andras (7x), Steiner, Herman (2x), Meleghegyi, Csaba (2x), Vecsey, Dr. Zoltan (2x), Evans, Larry (1x), Hadi, Adrian (1x), Sifton, It (1x), Peckar, Mark (1x)

5.O-O — 30.1% (25 parties)

Ambassadeurs : Babits, Andras (3x), Steiner, Herman (2x), Janata, Michael (1x), Nilsson, Nils S (1x), Burger, Robert (1x), Rankis, August (1x), Kaufman, Allen J (1x), Fuderer, Andrija (1x)

5.Bb3 — 1.2% (1 parties)

Ambassadeurs : Rubinetti, Jorge (1x), Roebuck, Ector (1x)

5.a3 — 1.2% (1 parties)

Ambassadeurs : Buhr, Thomas (1x), Calhoun, Frank H (1x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	5.c3	5.O-O	5.Bb3	5.a3
<1800	6	67%	33%	—	—
1800-2200	24	71%	29%	—	—
2200-2600	4	75%	25%	—	—

Évolution par décennie (% des parties)

Décennie	N parties	5.c3	5.O-O	5.Bb3	5.a3
1950s	13	38%	54%	—	8%
1960s	8	75%	12%	12%	—
1970s	3	33%	67%	—	—
1980s	3	100%	—	—	—
1990s	9	67%	22%	—	—
2000s	18	67%	33%	—	—
2010s	24	79%	21%	—	—
2020s	5	60%	40%	—	—

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
5.c3	79%	60%	▼ -19.2%
5.O-O	21%	40%	▲ +19.2%
5.Bb3	0%	0%	+0.0%
5.a3	0%	0%	+0.0%

Parties historiques

5.c3 — 66.3% (55 parties)

1952 — Evans, Larry vs Steiner, Herman — 1/2-1/2 — USA
1953 — Bolbochan, Jacobo vs Steiner, Herman — 1/2-1/2 — Mar del Plata ARG
1955 — Drakert, William vs Kaufmann, Allan — 0-1 — New York, NY USA
1957 — Peckar, Mark vs Kaufman, Alan — 0-1 — New York, NY USA
1958 — Bogdanovic, Rajko vs Foldi, Jozsef — 1-0 — Varna BUL

5.O-O — 30.1% (25 parties)

1950 — Fuderer, Andrija vs Tartakower, Savielly — 1-0 — Bled SLO
1952 — Dake, Arthur William vs Steiner, Heinrich Jun. — 1/2-1/2 — Hollywood
1953 — Burger, Robert vs Steiner, Herman — 1/2-1/2 — Los Angeles, CA USA
1953 — Medina-Garcia, Antonio vs Steiner, Herman — 1/2-1/2 — Mar del Plata ARG
1954 — Fertesagy vs Vecsey, Z. — 1-0 — Budapest HUN

5.Bb3 — 1.2% (1 parties)

1968 — Rubinetti, Jorge vs Roebuck, Ector — 1-0 — Lugano SUI

5.a3 — 1.2% (1 parties)

1950 — Buhr, Thomas vs Calhoun, Frank H — 0-1 — Vancouver