White will have an easier time than Black in finding good spaces for friendly pieces, particularly with an eye to the kingside.

It's gained by having friendly pieces occupying squares with power points.

This must be balanced against the defense of one's own king by friendly pieces on the board.

In this game knights "relay" their power to friendly pieces.

A move of d2-b4 would be illegal because long leapers may not jump over friendly pieces.

This is the first period when I've mostly gone back to old, friendly pieces.

He always offered a warm smile and a friendly piece of advice.

A piece on a trap square is captured when all adjacent friendly pieces move away.

The white king cannot take the black knight because it is not guarded by a friendly piece.

An opposing piece is not allowed to jump over them, but friendly pieces can.