The Hippopotamus Defense is an unusual opening better than looks.
1. e4 Nh6;
2. d4 g6;
3. c4 f6;
A typical beginning to a game involving the Hippopotamus Defense would therefore be
1. e4 Nh6;
2. d4 g6;
3. c4 f6;
4. Nf3 Bg7;
5. Nc3 O-O;
6. Be2 d6;
7. O-O e5;
8. dxe5 fxe5;
9. Bg5 Qd7;
10. Qd2 Ng4;
11. h3 Nf6;
The Modern Robatsch Pirc Hippopotamus Defense
1. e4 g6
2. d4 Bg7
3. Nc3 d6
4. Nf3 a6
5. a4 b6
6. Bd3 Bb7
7. O-O Nd7
8. Re1 c5
9. d5 Ngf6
10. Bf4 O-O
11. h3 Qc7
This is the recommended Move Sequence:
Against e4:
1. e4 b6
2. d4 Bb7
3. Bd3 e6
4. Nf3 d6
5. Nc3 Ne7
6. O-O g6
7. Be3 Bg7
8. Qd2 h6
9. Rd1 Nd7
10. Re1 a6
11. Nce2
Against d4:
1. d4 b6
2. e4 Bb7
3. Nc3 e6
4. Bd3 g6
5. Nf3 Bg7
6.0–0 Ne7
7. Bf4 d6
8. Qd2 h6
9. h3 Nd7
10. Rfe1 a6
11. a4
Against c4:
1. c4 b6
2. d4 Bb7
3. Nc3 e6
4. Nf3 d6
5. e4 Nd7
6. Bd3 Ne7
7. O-O g6
8. Be3 Bg7
9. Qe2 a6
10. Rd1 h6
11. Re1
Against Nf3:
1. Nf3 d6
2. e4 b6
3. d4 Bb7
4. Nc3 e6
5. Bd3 g6
6. O-O Bg7
7. Be3 Ne7
8. Qd2 h6
9. h3 Nd7
10. Rd1 a6
11. Ne2
Whenever white plays Nf3, black plays d6
Whenever white plays Nc3, black plays e6
Whenever white plays Bd3, black plays g6
Whenever white plays Be3, Qd2 black plays h6
Whenever white plays Bd3, Qe2 black plays a6
Whenever white plays Be3, black plays Bg7
Illustrative games
Spassky vs. Ujtelky, Sochi 1964
1.e4 g6 2.d4 Bg7 3.Nc3 a6 4.Nf3 d6 5.Bc4 e6 6.Bg5 Ne7 7.a4 h6 8.Be3 b6 9.0-0 Nd7 10.Re1 0-0 11.Qd2 Kh7 12.Rad1 Bb7 13.Qe2 Qc8 14.Bf4 Rd8 15.h4 Nf8 16.Bb3 f6 17.Nb1 e5 18.Bc1 Ne6 19.c3 Rf8 20.Na3 f5? 21.dxe5 dxe5 22.Nxe5! Bxe5 23.exf5 Rxf5 24.Bc2 Rh5?? 25.Qxh5 1–0
Petrosian vs. Spassky, World Championship 1966 (game 12)
1.Nf3 g6 2.c4 Bg7 3.d4 d6 4.Nc3 Nd7 5.e4 e6 6.Be2 b6 7.0-0 Bb7 8.Be3 Ne7 9.Qc2 h6 10.Rad1 0-0 11.d5 e5 12.Qc1 Kh7 13.g3 f5 14.exf5 Nxf5 15.Bd3 Bc8 16.Kg2 Nf6 17.Ne4 Nh5 18.Bd2 Bd7 19.Kh1 Ne7 20.Nh4 Bh3 21.Rg1 Bd7 22.Be3 Qe8 23.Rde1 Qf7 24.Qc2 Kh8 25.Nd2 Nf5 26.Nxf5 gxf5 27.g4 e4 28.gxh5 f4 29.Rxg7 Qxg7 30.Rg1 Qe5 31.Nf3 exd3 32.Nxe5 dxc2 33.Bd4 dxe5 34.Bxe5+ Kh7 35.Rg7+ Kh8 36.Rg6+ Kh7 37.Rg7+ Kh8 38.Rg6+ Kh7 39.Rg7+ ½–½
Petrosian vs. Spassky, World Championship 1966 (game 16)
1.d4 g6 2.e4 Bg7 3.Nf3 d6 4.Be2 e6 5.c3 Nd7 6.0-0 Ne7 7.Nbd2 b6 8.a4 a6 9.Re1 Bb7 10.Bd3 0-0 11.Nc4 Qe8 12.Bd2 f6 13.Qe2 Kh8 14.Kh1 Qf7 15.Ng1 e5 16.dxe5 fxe5 17.f3 Nc5 18.Ne3 Qe8 19.Bc2 a5 20.Nh3 Bc8 21.Nf2 Be6 22.Qd1 Qf7 23.Ra3 Bd7 24.Nd3 Nxd3 25.Bxd3 Bh6 26.Bc4 Qg7 27.Re2 Ng8 28.Bxg8 Rxg8 29.Nd5 Bxd2 30.Rxd2 Be6 31.b4 Qf7 32.Qe2 Ra7 33.Ra1 Rf8 34.b5 Raa8 35.Qe3 Rab8 36.Rf1 Qg7 37.Qd3 Rf7 38.Kg1 Rbf8 39.Ne3 g5 40.Rdf2 h5 41.c4 Qg6 42.Nd5 Rg8 43.Qe3 Kh7 44.Qd2 Rgg7 45.Qe3 Kg8 46.Rd2 Kh7 47.Rdf2 Rf8 48.Qd2 Rgf7 49.Qe3 ½–½
Barczay vs. Ivkov, Sousse Interzonal 1967
1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Bc4 a6 5.0-0 e6 6.Bg5? Ne7 7.Qd2 h6 8.Be3 Nd7 9.Nc3 b6 10.Rfe1 Bb7 11.a4 Nf6 12.e5? Nfd5 13.Bf4 Nxc3 14.Qxc3? (14.bxc3) 0-0 15.exd6 cxd6 16.Qa3 Nf5 17.c3? (17.Rad1) Bxf3 18.gxf3 e5! 19.Bg3 h5 20.dxe5 dxe5 21.Kh1 Qg5 0–1[
Baburin vs. Miles, 4NCL, England 2000
1.d4 e6 2.c4 b6 An English Defense, but it soon transposes to a Hippopotamus. 3.a3 g6 4.Nc3 Bg7 5.e4 Ne7 6.Nf3 Bb7 7.Bd3 d6 8.0-0 Nd7 9.Re1 h6 10.h3 a6 11.Be3 g5 12.Rc1 c5 13.d5 Ng6 14.Bc2 Qe7 15.Qd2 0-0 16.Rcd1 Nde5 17.Nxe5 Bxe5 18.Bd3 Qf6 19.Na4 Rab8 20.Nxb6 Bc8 21.Na4 If 21.Nxc8 Rxb2! 22 Qa5 Rxc8 23 Qxa6 Rcb8 followed by ...Nf4 and ...Bd4. Bd7 22.Nc3 Rb3 23.Rb1 Rfb8 24.Nd1 exd5 25.cxd5 Nf4 26.Bxf4 gxf4 27.Bc2 Rxh3! 28.gxh3 Kh8 29.f3 Rg8+ 30.Kh1 Qh4 0–1 (Notes by John B. Henderson)
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