OPENINGS THEORY

- ECBX: ECO CODES BASE -
(ECB Classification)


- C43 i - a to q**



[C43-a] - PD: Petrov's defence
Modern (Steinitz) Attack
1.e4 e5 2.Nf3 Nf6 3.d4
(d6 (see: C41))


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[C43-b] - PD: Petrov's defence
Modern (Steinitz) Attack
Napier-Ruth Retort (3...d5)
1.e4 e5 2.Nf3 Nf6 3.d4 d5?!
(CA: d4,e4-d5,e5 (Center Anvil))


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[C43-c] - PD: Petrov's defence
Modern (Steinitz) Attack
Gloeckner Retort (3...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nc6
(see also: C42, C44, C45, C47,
C50, C55, C56, C62, C65, C66)


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[C43-d] - PD: Petrov's defence
Modern (Steinitz) Attack
Jaenisch Retort (3...exd4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
(4.Bc4 (see: C24, C41, C44,
C45, C47, C50, C56))


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[C43-e] - PD: Petrov's defence
Modern (Steinitz) Attack
Jaenisch Retort (3...exd4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.Nxd4 (Nxe4)+(d6 (see: B07,
C41,C45, C50, C66))+(Nc6
(see: C45, C47))


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[C43-f] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5!


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[C43-g] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5)
Ackermann Retort (4...Bb4+)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Bb4+? +/-


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[C43-h] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5)
Marshall Retort (4...Qe7)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Qe7? +/-


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[C43-i] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5)
Van der Linden Retort (4...Nd5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Nd5?! +/=


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[C43-j] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Nd5?! +/-


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[C43-k] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 +/=


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[C43-l] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
Tal Retort (5.Bb5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Bb5! +/=


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[C43-m] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
Tal Retort (5.Bb5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Bb5! Nc6 +/=


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[C43-n] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
Tal Retort (5.Bb5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Bb5! Nc6 6.0-0 +/=
(a6 (see also: C65, C77, C84)
+(Be7 (see: C65))


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[C43-o] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
Fischer (Steinitz) Retort (5.Qe2)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qe2!? (Nc5 6.Nxd4
Nc6 (Fischer-German)) +/=


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[C43-p] - PD: Petrov's defence
Modern (Steinitz) Attack
Heydebrand-Jaenisch var. (4.e5 Ne4)
Chigorin Retort (5.Qxd4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! +/=


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[C43-q] - PD: Petrov's defence
Modern (Steinitz) Attack
Fleissig-Bauer var. (6.exd6 Nxd6)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
+/=


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[C43-r] - PD: Petrov's defence
Modern (Steinitz) Attack
Fleissig-Bauer var. (6.exd6 Nxd6)
Loman Retort (7.Bf4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bf4 +/=


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[C43-s] - PD: Petrov's defence
Modern (Steinitz) Attack
Fleissig-Bauer var. (6.exd6 Nxd6)
Fleissig Retort (7.Bg5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bg5 (Nc6) +/=


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[C43-t] - PD: Petrov's defence
Modern (Steinitz) Attack
Fleissig-Bauer var. (6.exd6 Nxd6)
Fleissig Retort (7.Bg5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bg5 f6 (8.Bf4) +/=


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[C43-u] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (7.Bd3)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 (Qe7) +/=


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[C43-v] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (7.Bd3)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 +/=


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[C43-w] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 +/=


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[C43-x] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
Freile Martin Retort (Qe7+)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 Qe7+ +/=


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[C43-y] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
Kinzel Retort (Be6)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 Be6!? (9.Nc3) =


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[C43-z] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
Kan (Schowalter) Retort (Be7)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 Be7!? (9.0-0) +/=


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[C43-a*] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
Kan (Showalter) Retort (Be7)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 Be7!? 9.Nc3 +/=


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[C43-b*] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
Brieger Retort (8...g6)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 g6 (9.Nc3) +/=


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[C43-c*] - PD: Petrov's defence
Modern (Steinitz) Attack
Smyslov-Kan var. (Nc6 8.Qf4)
Brieger Retort (8...g6)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Bd3 Nc6 8.Qf4 g6 9.0-0 +/=


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[C43-d*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (7.Nc3)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 +/=


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[C43-e*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (7.Nc3 Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 +/=


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[C43-f*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (7.Nc3 Nc6)
Ruth Retort (8...Be7)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 Be7 (9.Bd3) +/=


1. «Zumsande, Martin (2407) - Beikert, Guenther (2361) C43 (66) 1/2-1/2 Laenderkampf Baden Osnabrueck (1.1), 2002»
«xBCGA: www.Rochadekuppenheim.de: eee Zumsande, Martin (2407) - Beikert, Guenther (2361) C43 (66) 1/2-1/2 Laenderkampf Baden Osnabrueck (1.1), 2002 - Commented by: Herbrechtsmeier»


[C43-g*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (7.Nc3 Nc6)
Karpov (Mokry) Retort (8...Nf5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 Nf5?! +/=


1. «Kasparov, Garry (2800) - Karpov, Anatoly (2730) C43 (18) 1/2-1/2 World Ch 35th-KK5, 1990»
«xNCGA: xRGMG: Tchecmeet.free.fr: eee Kasparov, Garry (2800) - Karpov, Anatoly (2730) C43 (18) 1/2-1/2 World Ch 35th-KK5, 1990»


[C43-h*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (8...Bf5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 Bf5 +/=


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[C43-i*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (9.Bb5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 Bf5 9.Bb5 +/=


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[C43-j*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (9.Bb5)
Basjuni Retort (9...Qe7+)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 Bf5 9.Bb5 Qe7+
(10.Rf1!? (Tal)) +/=


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[C43-k*] - PD: Petrov's defence
Modern (Steinitz) Attack
Chigorin-Pillsbury var. (9.Bb5)
Basjuni Retort (9...Qe7+)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 Bf5 9.Bb5 Qe7+
10.Be3 +/=


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[C43-l*] - PD: Petrov's defence
Modern (Steinitz) Attack
Boleslavsky-Alatorsev var. (8.Qf4 g6)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 g6 +/=


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[C43-m*] - PD: Petrov's defence
Modern (Steinitz) Attack
Boleslavsky-Alatorsev var. (8.Qf4 g6)
Bronstein Retort (9.Bb5)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 g6 9.Bb5 (Bg7) +/=


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[C43-n*] - PD: Petrov's defence
Modern (Steinitz) Attack
Boleslavsky-Alatorsev var. (8.Qf4 g6)
Bertok Retort (9.Be3)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 g6 9.Be3 (Bg7) +/=


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[C43-o*] - PD: Petrov's defence
Modern (Steinitz) Attack
Boleslavsky-Alatorsev var. (8.Qf4 g6)
Gligoric Retort (9.Bd3)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 g6 9.Bd3 (Bg7) +/=


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[C43-p*] - PD: Petrov's defence
Modern (Steinitz) Attack
Boleslavsky-Alatorsev var. (8.Qf4 g6)
Boleslavsky Retort (9.Bd2)
1.e4 e5 2.Nf3 Nf6 3.d4 exd4
4.e5! Ne4 5.Qxd4! d5 6.exd6 Nxd6
7.Nc3 Nc6 8.Qf4 g6 9.Bd2 (Bg7) +/=


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[C43-q*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
/unclear


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[C43-r*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Mnatsakanian Retort (4.Qe2)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Qe2?! =/+


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[C43-s*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Dannenberg Retort (4.Nxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Nxe5 +/= (d6 (see: C41))


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[C43-t*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Dannenberg Retort (4.Nxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Nxe5 Nc6 +/=


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[C43-u*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Dannenberg Retort (4.Nxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Nxe5 d5!? (5.Bd3 (see: 4.Bd3))
+/=


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[C43-v*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Anderssen Retort (4.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.dxe5 (d6 (see: C41)) +/=


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[C43-w*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Anderssen Retort (4.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.dxe5 Bc5!? +/=


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[C43-x*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Anderssen Retort (4.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.dxe5 Nc6 (see also: C44, C56,
C67)) +/=


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[C43-y*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Anderssen Retort (4.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.dxe5 d5!? +/=


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[C43-z*] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Anderssen Retort (4.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.dxe5 d5!? 5.exd6?! (Bxd6) =/+


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[C43-a**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (3...Nxe4)
Anderssen Retort (4.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.dxe5 d5!? 5.Nbd2 +/=


1. «Glek, Igor (2590) - Nielsen, Peter Heine (2626) C43 (43) 1/2-1/2 17th North Sea Cup (2) Esbjerg, Denmark, 2002»
«xNCGA: xRGMG: Home1.Inet.Tele.dk: eee Glek, Igor (2590) - Nielsen, Peter Heine (2626) C43 (43) 1/2-1/2 17th North Sea Cup (2) Esbjerg, Denmark, 2002»


[C43-b**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 +/=


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[C43-c**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
Solomon Retort (4...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 Nc6 +/=


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[C43-d**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
Solomon Retort (4...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 Nc6 +/=


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[C43-e**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
Solomon Retort (4...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 Nc6 5.Nxe5 +/=


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[C43-f**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
Solomon Retort (4...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 Nc6 5.d5?! =


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[C43-g**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
Solomon Retort (4...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 Nc6 5.dxe5! +/=


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[C43-h**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3)
Solomon Retort (4...Nc6)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 Nc6 5.Bxe4! d5 /unclear


1. «Amed, Stephanie (2043) - Nebolsina Vera (2073) C43 (37) 0-1 Wch U14 Girls (1) Chalkidiki, 2003»
«xANGA: Skaakafrigtersgilde: eee Amed, Stephanie - Nebolsina Vera (2073) C43 (37) 0-1 Wch U14 Girls (1) Chalkidiki, 2003 - Analyzed by: Steenkamp J.»


[C43-i**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 /unclear


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[C43-j**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Lipschuetz Retort (5.Qe2)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.Qe2?! =/+


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[C43-k**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 +/=


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[C43-l**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 Be7 +/=


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[C43-m**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 Nc6! =


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[C43-n**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 Nc5!? =


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[C43-o**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 Nc5!? 6.0-0?! =


1. «»
«»


[C43-p**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 Nc5!? 6.Be2! =


1. «»
«»


[C43-q**] - PD: Petrov's defence
Modern (Steinitz) Attack
Petrov-Jaenisch var. (4.Bd3 d5)
Kolisch Retort (5.dxe5)
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4
4.Bd3 d5 5.dxe5 Nc5!? 6.Be2!
Ne6! =/+


1. «»
«»

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