Hiding messages in a deck playing cards

Post by a_t48 » Sun, Jul 27, 2025, 1:55 AM UTC

da_chicken wrote: post #16

a_t48 wrote: post #6

You should be able to get another 45 bits or so by also using the orientation of the cards (everything except non face card Diamonds).

The 2, 4, 8, and 10 of all suits are typically rotationally symmetrical.