The internet chess club is a great place to practice openings you would not be brave enough to play in a USCF or FIDE chess tournament. In the following rapid game at ICC, Black plays both of his Knights to passive squares in an attempt to inveigle White into overextending his forces.
The opening setup where Black places his Knights at d7 and e7 is amusingly called the Hippopotamus Defense or the Hippo for short. The StockFish chess analysis software has a very low opinion of this defense as it indicates White has circa a 1.5 pawn advantage. White has a similar opening advantage in other more respected openings such as the Benoni Defense.
This is no reason to be overconfident if your opponent plays the Hippo against you. Chess legends such as Spassky and Petrosian have played both sides of the Hippo. Also Andrew Martin produced an excellent write up on the Hippopotamus defense at Jeremy Silman’s Website, however Silman is constantly reorganizing the links at his site which costs him with respect to the web traffic(back links)he would otherwise get.
Finally, for some reason there is a lot of interest in this super hypermodern defense in the former Yugoslav Republic of Macedonia. I would like to know why.