Permalink Submitted by supernewton on Mon, 06/04/2018 - 17:47.
Imagine you had a physical domino with the numerals "0" and "5" printed on it. If you turned that domino upside-down, the printed "5" would also be upside-down. But since this is a paper puzzle, you enter the 5 right-side up no matter how the domino is oriented relative to the reference domino (you probably do this anyway, the instructions just spell it out for you.)
Imagine you had a physical
Imagine you had a physical domino with the numerals "0" and "5" printed on it. If you turned that domino upside-down, the printed "5" would also be upside-down. But since this is a paper puzzle, you enter the 5 right-side up no matter how the domino is oriented relative to the reference domino (you probably do this anyway, the instructions just spell it out for you.)