SudoBlueprint

SudoBlueprint is a fully offline standard 9x9 Sudoku game. Each puzzle you solve reveals a hand-written "renovation knowledge card" by the author — real practical tips about tile sizes, flooring expansion gaps, herringbone vs chevron, paint coats, edge trim, and more. Features - Truly offline, works 100% in airplane mode - Standard 9x9 Sudoku, Easy and Medium difficulties - Pencil mode + row/col/box highlighting - Auto unique-solution guarantee — never two answers - Reveals one renovation tip card per solve - Blueprint color scheme — easy on the eyes in dark cabins - Optional timer, mistakes counter, hints - Pay once. No IAP. No ads. No account. No data collection. Buy once, play long.