Betza's funny notation ones. The notation is based on dividing moves that can be made on a board of squares into groups of symmetry-equivalent moves, the moves within a group differing only in the direction in which the step is taken. Each such group (referred to as "atom") is indicated by a capital, such as N for the 8 moves of the knight. The letter that represents the atom is usually the first letter of the simplest piece from current or historic chess variants that has this move, such as A and F for the alfil and ferz of shatranj (ancient Arabic/Persian chess).
Piece by Piece (song) I'm not that girl." To promote the album, Clarkson had also performed the song in a stripped-down performance as part of her set list during her Piece by Piece Tour. On February 25, 2016, she performed "Piece by Piece" in a live performance a year after its release on the fifteenth season of "American Idol". Her rendition of the song was met with a standing ovation from the audience and critical acclaim from music critics— with Olivia Waring "Metro" praising it as poignant while "USA Today"s Erin Jensen describing it as a "heartfelt performance that we just can't get enough