Based on the release timeline of the app—which first launched around March 2020 and saw frequent updates throughout its first year—the July 28, 2020 update typically included:
Chess Sudoku is a variant-style puzzle game where traditional 9x9 grids are solved using specific "chess-move" rules: Chess.Sudoku.Update.28.07.2020.rar
: A digit cannot be in any of the eight adjacent cells (a king's move). Based on the release timeline of the app—which
: Hand-crafted levels by Simon Anthony and Mark Goodliffe . Chess.Sudoku.Update.28.07.2020.rar