Hippopotamus Defence

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Hippopotamus Defence
abcdefgh
8
a8 black rook
d8 black queen
e8 black king
h8 black rook
b7 black bishop
c7 black pawn
d7 black knight
e7 black knight
f7 black pawn
g7 black bishop
a6 black pawn
b6 black pawn
d6 black pawn
e6 black pawn
g6 black pawn
h6 black pawn
a2 white pawn
b2 white pawn
c2 white pawn
d2 white pawn
e2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
a1 white rook
b1 white knight
c1 white bishop
d1 white queen
e1 white king
f1 white bishop
g1 white knight
h1 white rook
8
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The Hippopotamus Defence is a chess

Modern Defence (1.e4 g6) or Owen's Defence (1.e4 b6). The Hippopotamus can also be played against queen's pawn openings
or flank openings and is thus a genuinely universal system. The same structure is also occasionally utilized by White.

History

The first master strength player to experiment with Hippopotamus-type structures would appear to have been the

International Master Maximilian Ujtelky.[2] The opening first came to public prominence, however, after being adopted twice by Boris Spassky in his 1966 World Championship match against Tigran Petrosian[3][4] (after which the set-up was dubbed the "Hippopotamus" by commentators). Spassky would appear to have been influenced by his 1964 game vs Ujtelky,[5] where he faced the same setup that he would later employ against Petrosian.[6]

Prominent players to have adopted the Hippopotamus on an occasional basis in more recent years include

Pavel Blatny and Luke McShane. Meanwhile, Kiril Georgiev has used the system as an anti-computer line. Other players to have adopted the Hippopotamus include Aron Nimzowitsch,[7] Garry Kasparov[8] and Magnus Carlsen
.

Analysis

abcdefgh
8
a8 black rook
d8 black queen
e8 black king
h8 black rook
b7 black bishop
c7 black pawn
d7 black knight
e7 black knight
f7 black pawn
g7 black bishop
a6 black pawn
b6 black pawn
d6 black pawn
e6 black pawn
g6 black pawn
h6 black pawn
c4 white bishop
d4 white pawn
e4 white pawn
f4 white bishop
c3 white knight
f3 white knight
a2 white pawn
b2 white pawn
c2 white pawn
e2 white queen
f2 white pawn
g2 white pawn
h2 white pawn
d1 white rook
e1 white rook
g1 white king
8
77
66
55
44
33
22
11
abcdefgh
A typical position in the Hippopotamus, White to move.

While Black sets up the Hippopotamus structure White is able to develop freely. If White proceeds in accordance with classical principles a position will arise similar to that shown in the diagram (left). Black has adopted the complete Hippopotamus set-up with pawns on a6, b6, d6, e6, g6 and h6, fianchettoed bishops on b7 and g7, and knights on d7 and e7. White, meanwhile, has occupied the centre with pawns, developed the minor pieces to central positions, castled and centralised rooks. Despite having achieved an ideal classical development White now faces a dilemma in terms of how to proceed, as Black has pawn control of every square on the fifth rank (a5-h5). White can thus only make headway by advancing a pawn into Black’s side of the board.[9]

If White should advance e4-e5, Black will typically lock the central pawns with …d6-d5. This gives rise to a central pawn structure similar to that seen in many lines of the French Defence. Black will then proceed with the typical French pawn break …c7-c5 and thematic queenside play.

Returning to the diagram position, if White should instead advance d4-d5, Black will again respond by locking the central pawns, this time with …e6-e5. The structure then resembles that seen in many lines of the King's Indian Defence. Black will likely proceed with either (a) the thematic King’s Indian pawn break …f7-f5 (usually following ...0-0), or (b) the typical Hippo idea of ...g6-g5 and ...Ne7-g6-f4, either of which plans may result in a kingside attack. Note that in positions where White intends to play d4-d5 the White queen would usually be deployed to d2 rather than e2 (thus avoiding the possibility of Black doubling White's pawns by responding to d4-d5 with ...Bg7xNc3).

abcdefgh
8
c7 black pawn
f7 black pawn
a6 black pawn
b6 black pawn
e6 black pawn
g6 black pawn
h6 black pawn
d5 black pawn
e5 white pawn
d4 white pawn
a2 white pawn
b2 white pawn
c2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
8
77
66
55
44
33
22
11
abcdefgh
Hippopotamus Defence: French-type pawn structure (with ...c5 to follow).

If White opts against playing either e4-e5 or d4-d5, Black may begin to advance against the castled White king with moves such as …g6-g5, …Ng6, etc. (or, if White had castled queenside, …b6-b5, …Nb6, etc.). Alternatively Black might play the pawn break …c7-c5, after which the structure may transform to resemble a Sicilian (following a later …c5xd4 or d4xc5) or a Benoni (following a later d4-d5).

To allow the various options given above, Black’s main objective in the early stages will be to remain flexible, including by delaying any decision about castling until after the central pawn structure has been defined.

abcdefgh
8
c7 black pawn
f7 black pawn
a6 black pawn
b6 black pawn
d6 black pawn
g6 black pawn
h6 black pawn
d5 white pawn
e5 black pawn
e4 white pawn
a2 white pawn
b2 white pawn
c2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
8
77
66
55
44
33
22
11
abcdefgh
Hippopotamus Defence: King's Indian-type pawn structure (with ...f5 to follow).

The Hippopotamus can be considered an anti-theory opening, with Black’s play tending to rely on a thematic understanding of the major chess openings mentioned above rather than on specific opening variations or move orders.[10]

The positions arising from the Hippopotamus differ from standard positions in the French Defence, King's Indian Defence, etc., as various pawns and pieces will be displaced compared to their usual positions in those openings. For example, in the King's Indian, Black would not have fianchettoed the queen's bishop, and White would prefer to have the c-pawn on c4 rather than c2. Hippopotamus middlegames are often defined by how the players navigate these differences and attempt to turn them to their own advantage or their opponent's disadvantage.

abcdefgh
8
f7 black pawn
a6 black pawn
b6 black pawn
d6 black pawn
e6 black pawn
g6 black pawn
h6 black pawn
e4 white pawn
a2 white pawn
b2 white pawn
c2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
8
77
66
55
44
33
22
11
abcdefgh
Hippopotamus Defence: Sicilian-type pawn structure.
abcdefgh
8
f7 black pawn
a6 black pawn
b6 black pawn
d6 black pawn
e6 black pawn
g6 black pawn
h6 black pawn
c5 black pawn
d5 white pawn
e4 white pawn
a2 white pawn
b2 white pawn
c2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
8
77
66
55
44
33
22
11
abcdefgh
Hippopotamus Defence: Benoni-type pawn structure (with ...e6xd5 or ...e5 to follow).

While White can be expected to obtain a space advantage in most variations of the Hippopotamus Defence, Black will often have a practical advantage due to greater familiarity with the various transpositional possibilities in this rare opening complex. White must also be wary of playing in too aggressive a fashion or of overextending, after which the dynamism of Black's seemingly passive structure may quickly become apparent (see, for example, Barczay vs Ivkov, below).

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[11]
  • 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[12]
Petrosian vs. Spassky
World Championship 1966, game 16
abcdefgh
8
a8 black rook
d8 black queen
f8 black rook
g8 black king
b7 black bishop
c7 black pawn
d7 black knight
e7 black knight
f7 black pawn
g7 black bishop
h7 black pawn
a6 black pawn
b6 black pawn
d6 black pawn
e6 black pawn
g6 black pawn
a4 white pawn
d4 white pawn
e4 white pawn
c3 white pawn
d3 white bishop
f3 white knight
b2 white pawn
d2 white knight
f2 white pawn
g2 white pawn
h2 white pawn
a1 white rook
c1 white bishop
d1 white queen
e1 white rook
g1 white king
8
77
66
55
44
33
22
11
abcdefgh
Position after 10...0-0

See also

References

  1. ^ Alessio de Santis, The Hippopotamus Defence, 2019, page 12.
  2. ^ Andrew Martin, The Hippopotamus Rises, 2005, p99-110
  3. ^ Petrosian-Spassky, World Championship, 1966, Game 12. ChessGames.com. Retrieved on 2009-05-05.
  4. ^ Petrosian-Spassky, World Championship, 1966, Game 16. ChessGames.com. Retrieved on 2009-05-05.
  5. ^ Spassky vs. Ujtelky, Sochi 1964. ChessGames.com. Retrieved on 2009-05-05.
  6. ^ Briffoz & Gifford, The Hippo System (4th Ed), 2019, p14.
  7. ^ https://www.chessgames.com/perl/chessgame?gid=1102430
  8. ^ https://www.chessgames.com/perl/chessgame?gid=1641816
  9. ^ Tiger Hillarp Persson, Tiger's Modern, 2005, pp93-4
  10. ^ Alessio de Santis, The Hippopotamus Defence, 2019, page 22.
  11. ^ Spassky vs. Ujtelky, Sochi 1964. ChessGames.com. Retrieved on 2009-05-05.
  12. ^ Petrosian vs. Spassky, World Championship 1966, Game 12. ChessGames.com. Retrieved on 2009-05-05.
  13. ^ Petrosian vs. Spassky, World Championship 1966, Game 16. ChessGames.com. Retrieved on 2009-05-05.
  14. ^ Barczay vs. Ivkov, Sousse (izt) 1967. ChessGames.com. Retrieved on 2009-05-05.
  15. ^ Baburin vs. Miles, 2000. ChessGames.com. Retrieved on 2009-05-05.
  16. .

Further reading

External links