Slav Defense

In the Slav Defence is a chess opening of the game, which is divided into several variants. The Slav Defence is also called the Slav Defence rejected the Queen's Gambit, as Slav Queen's Gambit or simply as Slavic.

It is among the Closed games. In contrast to the rejected Queen's Gambit already open diagonal c8 - h3 is not closed by e7 - e6, so that remains a possible development of the rotor c8 by f5 or g4 ago e7 - e6. Under certain circumstances, try the subsequent adoption of the gambit pawn successfully with d5xc4 black to ... c7 - c6 2.

Intellectual history was the development of "open Slavs " an effect of the " hypermodern opening revolution." Because black is at the center with 4 ... d5xc4, then to compensate for the lack of a separate central pawn with a flexible pawn structure, and FIG pressure.

The breakthrough came at the highest level by Alekhine and Euwe in particular by the world championship fights in 1935 and 1937.

The Slav Defence arises after the moves:

The main variants of the Slav Defence include:

  • The Exchange Variation: 3 c4xd5 c6xd5
  • Open Slavic 3 Sg1 -f3 - f6 Ng8 4 Nb1 - c3

( Its basic idea can not be implemented immediately black, because 4 ... Bc8 - f5 fails? Tactically to 5 c4xd5 c6xd5 6 Dd1 -b3 - b7 b6 7 e2 -e4! ) D5xc4

  • 5 a2 -a4 Bc8 - f5 6 e2 -e3 e7 - e6 7 Lf1xc4 Bf8 - b4 8 0-0 brings white light space advantage. The white pawn center is not as flexible as it looks: d4 -d5 leads to Abtausch and flattening, e4 - e5 gives strengths and weaknesses for both sides. Black will work slowly on e6 - e5, c6 - c5 b7 - b5 or.

The recovery of c4 by 6 Nf3 - e5 e6 e7 - 7 f2 -f3 leads by 7 ... c6 - c5 or 7 ... Bf8 - b4 8 e2 -e4 Lf5xe4 9 f3xe4 Sf6xe4 10 Lc1 -d2 Dd8xd4 to significant complications. The idea of immediate enforcement of the Bauer Centre by f2 -f3 and e2- e4 was to get bitten a Lg6 on granite. 6 Nf3 - e5 - d7 Sb8 7 Se5xc4 Qd8 - c7 has the idea of ​​8 g2 g3 - e7 - e5

  • In addition, the Tolusch Geller Gambit exist 5 e2 -e4 and the Alekhine variation 5 e2 -e3. In Tolusch Geller Gambit dispensed White c4 on the recovery of the farmer. Instead white wants to dominate the center and be active on the kingside. 5 ... b7 - b5 6 e5 e4 Nf6 -d5 7 a2 -a4 e7 - e6 8 a4xb5 Sd5xc3 9 b2xc3 c6xb5 10 Nf3 - g5 Bc8 - b7 11 Dd1 - h5 - g6 g7 12 DH5 g4 Bf8 - e7 is the main variant.
  • In the Alekhine variation of the white e - pawn can not be attacked in contrast to Tolusch Geller Gambit. This white wins time to look into after 5 ... b7 - b5 6 a2 -a4 b5- b4 immediately the recoveries of the c4-pawn. The Abspiele 7 Sc3 a2 e7 - e6 8 Lf1xc4 or 7 Nc3 -b1 Bc8 - a6 8 Dd1 -c2 e6 e7 - 9 Lf1xc4 can easily reach this goal.
  • Newly established, the popularized of Tschebanenko Chameleon System 3 Sg1 -f3 - f6 Ng8 4 Nb1 - c3 a7 - a6 with intentions as 5 e2 -e3 b7 - b5 6 b2 -b3 Bc8 - g4.

Because 4 ... f5 Bc8? tactically fails and 4 ... d5xc4 the development of Bc8 only at the price of a white pawn center allows waiting 4 ... a6 a7 - off to after white c4xd5, c4 - c5 or b2 -b3 then the next (or frequently over the next) train still to come to Lc8-f5/g4.

  • The Winawer counter-gambit: 3 Nb1 - c3 e7 - e5 - there are 4 possible c4xd5 c6xd5 5 d4xe5 d5 -d4 6 Nc3 -e4 Qd8 - a5 with recovery of the peasant, or 4 c4xd5 c6xd5 5 Sg1 -f3 e4 e5 Nf3 - e5 6 Sb8 - c6 with total compensation.
  • Rausis tried as a black man with the subsequent assumption 3 Sg1 -f3 d5xc4 4 e2- e3 - e6 Bc8 ( 5 Nf3 - g5 fails the double attack Qd8 - a5 ) and as white with 3 Sg1 -f3 - f6 Ng8 4 Dd1 c2 - e2- e4 d5xc4 5
  • Semi- Slav Defence
  • Because of the confinement of the e7 - e6 by Bc8 occur after 2 ... c7 - c6 3 Sg1 -f3 - f6 Ng8 4 Nb1 - c3 e7 - e6 and 2 ... c7 - c6 3.Nc3 e6 systems rather independent semi- Slav Defence as: The Notenboom System 3 Nb1 - c3 e7 - e6 4 Sg1 -f3 d5xc4
  • The Slav Gambit 3 Nb1 - c3 e7 - e6 4 e2 -e4
  • The Meran System 3 Sg1 -f3 - f6 Ng8 4 Nb1 - c3 e7 - e6 5 e2 -e3 Sb8 - d7 6 Lf1 -d3 d5xc4
  • The Botvinnik System, also called anti- Meran Gambit: 3 Sg1 -f3 - f6 Ng8 4.Sb1 - c3 e7 - e6 - g5 5 Lc1

Positions after

  • 1.d2 d5 2.c2 d4 d7 - c4 - c7 - c6 3.Sg1 -f3 - f6 4.g2 - g3 Ng8

Can be counted on to g2 Catalan Opening due to the planned installation of the white runner.

Semyon Alapin Efim Bogoljubov Milan Vidmar Queen's Gambit Declined Max Euwe Efim Geller
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