Knight on the rim is dim

How can Black make progress? 101...Kd2, 101...Kf1 or 101...f3?
Solution
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1.Nf3 g6 2.c4 Bg7 3.Nc3 c5 4.e3 Nf6 5.d4 0-0 6.Be2 cxd4 7.exd4 d5 8.0-0 Nc6 9.h3 dxc4 10.Bxc4 Na5 11.Bd3 Be6 12.Re1 Rc8 13.Bg5 Bc4 14.Bxc4 Nxc4 15.Qe2 Re8 16.Rac1 Nb6 17.Bxf6 Bxf6 18.Ne4 Rxc1 19.Rxc1 Bg7 20.Qb5 Rf8 21.Qa5 Qb8 22.Nc3 Rc8 23.Re1 Nc4 24.Qb4 e6 25.Ne4 Nb6 26.Nc3 Qc7 27.Qa5 a6 28.Qb4 Nc4 29.Ne4 a5 30.Qb5 Qc6 31.Qxc6 Rxc6 32.Re2 Nb6 33.Nc3 Bf8 34.Re5 Nc4 35.Rb5 Nxb2 36.Ne4 Rc1+ 37.Kh2 Nc4 38.Nf6+ Kh8 39.Rxb7 Nd6 40.Ra7 Kg7 41.Nd7 Rc2 42.Nxf8 Kxf8 43.Rxa5 Rxf2 44.d5 exd5 45.Rxd5 Nc4 46.Rd8+ Kg7 47.a4 Ra2 48.Rd3 h6 49.Kg3 Rxa4 50.Rd4 Nb6 51.Rxa4 Nxa4 52.Kf4 Kf6 53.Ke4 Nc5+ 54.Kf4 Ke6 55.Ke3 Kd5 56.Kf4 Ne6+ 57.Ke3 f5 58.Nh4 f4+ 59.Kf3 g5 60.Nf5 h5 61.Ne7+ Ke5 62.Nc6+ Kd6 63.Nb4 Kc5 64.Nd3+ Kd4 65.Nf2 Ke5 66.Nd3+ Kd4 67.Nf2 Kd5 68.Nd3 Nd4+ 69.Kf2 Nf5 70.Kf3 Nh4+ 71.Kf2 Kd4 72.Nb4 Ng6 73.Nc6+ Ke4 74.Nd8 Nf8 75.Nf7 Ne6 76.Nd6+ Ke5 77.Nf7+ Kf6 78.Nd6 Nd4 79.Ne4+ Kf5 80.Nd6+ Ke5 81.Nf7+ Kf6 82.Nd6 Ne6 83.Kf3 Ke5 84.Nf7+ Kf5 85.Nd6+ Kf6 86.Nc4 Nd4+ 87.Ke4 Nf5 88.Kf3 Ke6 89.Kf2 Nd6 90.Nb6 Ke5 91.Nd7+ Kf5 92.Ke2 Ne4 93.Kf3 Nc3 94.Kf2 g4 95.hxg4+ hxg4 96.Kg1 Ne4 97.Nb6 Ke5 98.Kf1 Kd4 99.Ke2 Nc3+ 100.Kf2 Kd3 101.Nd7 Ne4+ 102.Kf1 Nd2+ 103.Kf2 g3+ 104.Kg1 Nc4 105.Nc5+ Ke3 106.Ne6 Nd2 107.Ng5 Ne4 108.Nf3 Kd3 109.Ne5+ Ke2 110.Ng6 Ke3 111.Ne5 Nd6 112.Kf1 Nf5 113.Ng6 Ke4 114.Kg1 Nd4 115.Nh4 Ke5 116.Ng6+ Kf5 117.Ne7+ Kg4 118.Ng6 Nc6 119.Kf1 Kg5 120.Nf8 Nd4 121.Nd7 Nf5 122.Ne5 Nh4 123.Kg1 Kf5 124.Nc4 Ke4 125.Nd6+ Ke3 126.Nc4+ Kd3 127.Ne5+ Ke2 128.Ng4 Ng6 129.Nh6 Ne7 130.Nf7 Nc6 131.Ng5 Nd4 132.Nh3 Ne6 133.Kh1 Kd2!? 133...Ke1?! 134.Kg1 Ke2 135.Kh1 Kd2 133...f3? 134.Ng1+ 134.gxf3? Kf1-+ 134...Kf1 135.Nxf3 Nf4 136.Nd2+ Ke2 137.Ne4= 133...Kf1? 134.Nxf4 Nxf4 133...Kd1!? 134.Kg1 134.Ng1 Ng5 135.Nf3+ Nxf3 136.gxf3 Ke3 137.Kg2 Ke2-+ 134...Ke1 135.Kh1 135.Nxf4 Nxf4 136.Kh1 Nh3 137.gxh3 Kf2-+ 135...f3‼ 135...Kf1? 136.Nxf4= 136.gxf3 136.Ng1 f2 137.Nf3+ Kd1 138.Nd2 Nf4 139.Nf1 Ke1 140.Ne3 140.Nxg3 Ne2-+ 140...Nh3 141.gxh3 f1Q+ 142.Nxf1 Kxf1-+ 136...Kf1 137.Nf4 137.f4 g2+ 138.Kh2 Nxf4 139.Ng1 Kf2-+ 137...Nd4 138.Ng2 138.Nh3 g2+ 139.Kh2 Nxf3+ 140.Kg3 Ng5-+ 138...Nf5 139.Nf4 Ne3 140.Nh3 Nd1 140...Nd1 141.f4 Nf2+ 142.Nxf2 Kxf2 143.f5 g2+ 144.Kh2 g1Q+ 145.Kh3 Qg3# 0–1
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Petrosyan,M | 2427 | Kovalenko,I | 2661 | 0–1 |
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Karsten Müller in ChessBase Magazine
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ChessBase Magazine #165 (April/May)

Introduction by Karsten Müller
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Opening surveys
Sagar Shah: English Opening A20
1.c4 e5 2.g3 Nf6 3.Bg2 h6

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White does without Nc3, so as to avoid ...Bb4. According to Sagar Shah in 3...h6 Black has a sort of useful waiting move, ...Nc6 is delayed. After 4.Nc3 Bb4 5.Nd5 Nxd5 6.cxd5 we can see a difference – Black does not need to move his Nc6.
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Souleidis: Double Fianchetto A50
1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 b6 5.Bg2 Bb7 6.0-0 0-0

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According to Georgios Souleidis this setup is becoming more and more popular for Black. Above all after 7.Nc3 – the usual move - 7...Ne4 one can safely count on equality. After the stronger 7.d5 Black even has two promising continuations with 7...Ne4 and 7...Na6.
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Sumets: Old Indian Defence A54
1.d4 Nf6 2.c4 d6 3.Nc3 Nbd7 4.Nf3 e5 5.Bg5 Be7 6.e3

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A setup with e3 is not so aggressive, but in return it also offers fewer targets for the opponent to attack. For example, White does not have to protect a pawn on e4. As Andrey Sumets demonstrates, Black does not find it easy to equalise after 6...0-0 7.Be2.
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Ris: Sicilian Defence B35
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 0-0 8.Bb3 d5

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This comes as a surprise. After all the d5-pawn is simply hanging. But as Robert Ris demonstrates in his article, 9.exd5 Na5 may be obvious, but after it the way to an advantage for White may be possible but, however, it is not easy to find over the board. |
Szabo: Sicilian Defence B90
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 0-0 10.0-0-0 Nbd7 11.g4 b5 12.Rg1

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With 12.Rg1 White deviates from the main variation (12.g5). One of the ideas can be seen after 12...b4 13.Nd5 – now Black cannot take on d5 with the knight, because the Be6 does not have access to the f5-square. As Krisztian Szabo shows, however, that is not the only idea behind 12.Rg1.
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Havasi: French Defence C06
1.e4 e6 2.d4 d5 3.Nd2 Nf6 4.e5 Nfd7 5.Bd3 c5 6.c3 Nc6 7.Ne2 cxd4 8.cxd4 f6 9.exf6 Nxf6 10.0-0 Bd6 11.Nf3 0-0 12.Bf4 Bxf4 13.Nxf4 Ne4

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In this principled variation – there is little occasion to deviate – White may have a slight initiative after 14.Qc1, but according to Gergo Havasi Black can maintain the equilibrium with accurate play.
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Marin: French Defence C08
1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Bb5+ Nc6 6.Qe2+ Be7 7.dxc5 Nf6 8.Nb3 0-0

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With the two checks on moves 5 and 6, White is trying to impose on the play a forcing character. But as Mihail Marin’s analyses prove, Black can stand up to the pressure quite well.
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Kuzmin: Slav D11
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 Bg4 5.h3 Bh5 6.g4 Bg6 7.Ne5

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The actual idea behind the clear opening plan presented by Alexey Kuzmin has not yet been executed in the diagram: White wants to play Nd2 and then, without having to worry about the c4-pawn, be able to develop his bishop to g2.
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Postny: Queen's Gambit D38
1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Bb4 5.Bg5 h6 6.Bxf6 Qxf6 7.e3 0-0 8.Rc1 dxc4 9.Bxc4 c5 10.0-0 cxd4

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The position in the diagram has been seen in several recent games and Evgeny Postny examines the latest trends. His conclusion: the white initiative is only temporary, Black can have high hopes of equalising.
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Stohl: Semi-Slav/Catalan E04
1.d4 d5 2.c4 e6 3.Nf3 c6 4.Nc3 e6 5.g3

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It starts with the Semi-Slav and transposes to the Catalan. For Igor Stohl it is clear that Black should take the c4-pawn, but after that there are still some open questions.
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Krasenkow: Bogo Indian Defence E11
1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.a3 Bxd2+ 6.Bxd2 Bb7 7.Bg5 d6 8.e3 Nbd7

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Michal Krasenkow presents his own repertoire against the Bogo-Indian. In the second part he deals with the main variation of this system. It is not easy for Black to achieve complete equality.
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