See also: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mines.html https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mine... - no guessing ever

See also: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mines.html https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mine... - no guessing ever required https://pwmarcz.pl/kaboom/ https://pwmarcz.pl/kaboom/ - if you guess and you could have deduced, you always die; if you can't deduce, you're always safe.