Abstract: This invention has embodiments of a puzzle and game that can be enjoyed by adults and children. Each of the puzzles can be solved using either a writing surface, by means of a puzzle kit or by using a digital electronic devise. The games can be played using either a writing surface, by means of a game kit or by using one or more digital electronic devises. The present invention includes a learning method related to the puzzle invention that has many applications. In one embodiment, the method can be used to help someone improve their understanding of the game of chess.

Abstract: There is disclosed a lubricant additive composition comprising a thermally stable, zinc-free, phosphorous-containing antiwear agent. Moreover, a lubricant composition comprising the disclosed additive composition is also disclosed. Methods for making and using the disclosed compositions are disclosed.