Orthodox defense

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Position after 1. d2 – d4 d7 – d5 2. c2 – c4 e7 – e6 3. Nb1 – c3 Ng8 – f6 4. Bc1 – g5 Bf8 – e7 5. e2 – e3 0–0 6. Ng1 – f3 Nb8 – d7

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The Orthodox Defense is an opening in the game of chess , which is part of the Queen's Gambit and therefore belongs to the closed games .

It develops from the Rejected Queen's Gambit . From around 1870 to around 1930 it was one of the most popular defenses. There are somewhat passive positions for black, which are solid, but in which it is easier for white to "naturally develop" his figures than for black. Black has a problem runner on c8 and less space. Nowadays defenses against 1. d2 – d4 are preferred, which offer greater chances of winning with a little more risk.

Orthodox defense begins with the moves

1. d2 – d4 d7 – d5 2. c2 – c4 e7 – e6 3. Nb1 – c3 Ng8 – f6 4. Bc1 – g5 Bf8 – e7 5. e2 – e3 0–0 6. Ng1 – f3 Nb8 – d7 .

Your main line arises after 7. Ra1 – c1 c7 – c6 8. Bf1 – d3 d5xc4 9. Bd3xc4 .

variants

Capablanca liked to use the relief maneuver 9.… Nf6 – d5 10. Bg5xe7 Qd8xe7 11. 0–0 Nd5xc3 12. Rc1xc3 e6 – e5. 13. d4xe5 Nd7xe5 14. Nf3xe5 Qe7xe5 15. f2 – f4 will set White's pawn center in motion.

13. Qd1 – c2 led in a long distance game after e5xd4 14. e3xd4 Nd7 – f6 15. Rf1 – e1 De7 – d6 16. Nf3 – g5 Bc8 – g4 17. Rc3 – g3 Bg4 – h5 18. Rg3 – h3 Lh5 – g6 a nice combination that was based on a fork motif : 19. Qc2xg6 h7xg6 20. Bc4xf7 + Rf8xf7 21. Rh3 – h8 + Kg8xh8 22. Ng5xf7 + along with 23. Nf7xd6

Alekhine liked to deviate with 11. Nc3 – e4.

In a game of world champion Euwe - Flohr played on Friday, August 21, 1936 in Nottingham, the following happened: 11 ... N5f6 12. Ng3 e5 13. 0–0 exd4 14. Nf5 Qd8 15.N3xd4 Ne5 16. Bb3 Bxf5 17. Nxf5 g6 18. Qd4 Qxd4 19. Nxd4 ½: ½ .

8. Qd1 – c2 is the main possibility of tempo battle , which is supposed to tempt Black to immediately d5xc4, after which Bf1 could capture c4 in one go. This tempo fight variant can be continued with 8.… a7 – a6 9. a2 – a3 Rf8 – e8 10. h2 – h3

7.… a7 – a6 strives for an extended fianchetto using d5xc4 and b7 – b5 . 8. c4xd5 or 8. c4 – c5 fend off this attempt. The Rubinstein trap resulted from this variant.

7.… b7 – b6 weakens point c6 and after 8. c4xd5! e6xd5 lead to the Pillsbury attack by building up Ne5, Bd3, f4, 0–0 .

By inserting h6 and Bh4 like 7.… h7 – h6 8. Bg5 – h4, the relief maneuver Nf6 – d5 loses its power. After 8.… c7 – c6 9. Bf1 – d3 d5xc4 10. Bd3xc4 Nf6 – d5 11. Bh4 – g3 denies an exchange for the more crowded Black and makes e6 – e5 more difficult.

7. Qd1 – c2 keeps the possibility of 0–0–0 open.

In the course of the introduction, Black can also opt for other defenses in the Queen's Gambit:

  • Cambridge Springs Variation 4.… Nb8 – d7 5. e2 – e3 c7 – c6 6. Ng1 – f3 Qd8 – a5
  • Lasker defense 4.… Bf8 – e7 5. e2 – e3 0–0 6. Ng1 – f3 h7 – h6 7. Bg5 – h4 Nf6 – e4
  • Tartakower defense 4.… Bf8 – e7 5. e2 – e3 0–0 6. Ng1 – f3 h7 – h6 7. Bg5 – h4 b7 – b6
  • 3. Nb1-c3 Ng8-f6 4. Bc1-g5 c7-c5 5. c4xd5 c5xd4 6. Qd1xd4 Bf8-e7 7. e2-e4 Nb8-c6
  • 3. Nb1-c3 Ng8-f6 4. Lc1-g5 c7-c5 5. c4xd5 Qd8-b6

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