Originally posted by BlueEyedRook
The article is well done.
2 Knights can mate, but the King already has to be near or in the corner (and the two knights have to be close to the king). Smothered mate may use one knight, and there are games where a knight and a king is sufficient to checkmate the enemy king if it is blockaded by its own piece(s).
Chess is often a game of space. As mentioned, bishops are often more powerful as they sweep the board. However, centralized knights that cannot be chased away by pawns are very powerful and may make it hard for the opposition to coordinate their pieces. A Steinitz knight, that is, a knight at d6 or e6 (for white), d3 or e3 for black, often spells certain doom for the opponent.
Bishops are often fianchettoed and best located on e3 and d3 for white (e6 and d6) for black, where they are less threatened by enemy pieces.