Knight (chess) king); in descriptive chess notation, "Kt" is sometimes used instead, mainly in older literature. In chess problems and endgame studies, the letter "S", standing for the German name for the piece, "Springer", is often used (and in some variants of fairy chess "N" is used for the popular fairy chess piece, the nightrider). Even among sets of the standard Staunton pattern, the style of the pieces varies. The knights vary considerably. Here are some examples. The knight, along with the king and the rook, has the oldest defined movement of any chess piece, its movement being unchanged since the invention
Piece by Piece Tour about opener Pentatonix. She stated she hoped to convince them to sing with her during her set. Nick Jonas and Tyler Shaw were scheduled to open up for Clarkson in October 2015 in Canada, before dates were ultimately cancelled. On May 21, 2015, it was announced that singer Abi Ann would also be opening up for Clarkson. Clarkson confirmed plans to include "Piece by Piece" singles "Heartbeat Song" and "Invincible" in the set list for the show, alongside album-only tracks, "Dance With Me" and "Tightrope", with the latter promised to be a highlight for the show. Speaking to "USA Today",