OddChoice by Amanjit Singh
Can a force be self-working The answer: ODD CHOICE.
The title say its all - ODD CHOICE!
A spectator picks the only red card from a packet of 5 random cards.
A spectator picks the only black faced card from a packet of 5 random cards.
A spectator picks the only odd-backed card from a packet of 5 random cards.
The possibilities are endless... once you know the method!
No Gimmicks. No switching of cards. No Equivoque.