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Continue to ChatSudoku 6x6 Solver (Android app) https://hollandnumerics.org.uk/wordpress/shop/woo-other/sudoku-6x6-solver-android-app/
Sudoku 6x6 Solver (Android app) https://hollandnumerics.org.uk/wordpress/shop/woo-other/sudoku-6x6-solver-android-app/