'Applaus! (voor vier klappers)' & 'Rites (sudoku triangelkwartet)' are rhythm based suso pieces that traverse the full set of 362,880 colorations of their initiating grid. 'Applaus!' lasts one, and 'Rites' will play for five full years. This soundblog texts provides the technical & combinatorial details, with some thoughts and reflections on the 'signification' of this 'sudokist serrealism.'