What is hippopotamus Defence in chess?

Answered by Michael Wilson

The Hippopotamus Defence in chess is a rather unorthodox opening strategy that involves Black (and sometimes White) moving their pawns to the sixth rank in the early stages of the game. This opening system is characterized by a lack of pawn moves to the fifth rank, and instead focuses on developing pieces to the seventh rank.

I first encountered the Hippopotamus Defence during a casual game with a friend who was known for his creative and unconventional play. As the game began, I noticed that he was moving his pawns to the sixth rank, creating a compact and solid pawn structure resembling the shape of a hippopotamus. Intrigued by this unusual approach, I decided to delve deeper into the strategy and understand its principles.

One of the main ideas behind the Hippopotamus Defence is to create a strong defensive setup. By moving the pawns to the sixth rank, Black (or White) aims to control key central squares and restrict the opponent’s piece activity. The compact pawn formation acts as a fortress, making it difficult for the opponent to launch aggressive attacks or break through easily.

Furthermore, the Hippopotamus Defence allows for flexible piece development. With the pawns acting as a shield, Black can safely bring their pieces out to the seventh rank, exerting influence on the central squares while maintaining a solid defensive position. This can lead to interesting tactical opportunities and surprise the opponent who may be expecting more traditional opening setups.

However, it is important to note that the Hippopotamus Defence is not without its drawbacks. The strategy can be slow and passive, allowing the opponent to seize the initiative and dictate the flow of the game. It requires careful planning and accurate piece coordination to transition from a solid defensive setup to a more active and dynamic position.

In my experience, the Hippopotamus Defence can be particularly effective against opponents who prefer aggressive and tactical play. By denying them immediate pawn breaks or exploitable weaknesses, the strategy can frustrate their plans and force them to find alternative ways to break through the defensive barriers.

It is worth mentioning that the Hippopotamus Defence is not commonly seen at the highest levels of chess, where more traditional and theoretical openings are favored. Nevertheless, at the amateur level and in casual games, it can be a surprising and challenging opening to face.

To summarize, the Hippopotamus Defence in chess involves moving pawns to the sixth rank and developing pieces to the seventh rank, creating a solid and defensive setup. While it may not be the most popular or mainstream opening strategy, it can be a valuable weapon in the arsenal of creative and unconventional players.