Questions tagged [cards]
For puzzles centered around playing cards.
65
questions
7
votes
2answers
1k views
The Great Houdini's awesome card guessing trick (3)
The Great Houdini is performing again! Houdini has built up lots of reputation by showing his great card guessing tricks in [predecessor puzzle-1] and in [predecessor puzzle-2]. Everybody wants to see ...
8
votes
5answers
1k views
The Great Houdini's awesome card guessing trick (2)
The Great Houdini is performing again! Everybody wants to see the famous magician and the magic show is sold out. Today Houdini shows the following sophisticated trick:
A guy from the audience ...
5
votes
3answers
920 views
The Great Houdini's awesome card guessing trick (1)
The Great Houdini is performing again!
A guy from the audience arbitrarily chooses $52$ cards from a huge stack.
He shuffles the cards and announces to Houdini that there are $a$ spades, $b$ hearts, $...
9
votes
2answers
1k views
The Fitch Cheney Card Trick Extended
First, here is the original question which was also discussed here in Puzzling Beta:
This is a two-person card trick. At the initial stage, the magician leaves the room. The magician's assistant ...
16
votes
8answers
2k views
Rigged casino that prevents pairs
This question is still active as the answer from @Sleafar has just arrived. Not yet solved.
Scenario
The heads of 3 top terrorist organisations are planning to play an extremely high-stake poker ...
40
votes
5answers
26k views
A five card trick - How does it work?
At a party last night, my friends Alice and Bob did a magic trick. Any ideas how it worked?
Alice shuffled a pack of cards, and asked me to take five. I looked at them. She put the rest of the pack ...
4
votes
3answers
989 views
A game of Green Jack
NB: This is based on a puzzle over at BrainBashers.com.
The setup
You and a friend play a card game called Green Jack. The deck consists of 16 cards, divided into 4 cards in 4 colors (standard ...
-2
votes
5answers
3k views
How many Questions will you need to Guess the Card?
Suppose your friend grabs a random card from a deck. Now you can ask questions about that card. You can only ask yes/no and greater/less than questions. How many questions do you need to determine the ...
-1
votes
3answers
935 views
Inheritance by cards [duplicate]
An old farmer passes away in his sleep. After a suitable period of mourning, his three sons find their father's will in his study.
Amongst other, simpler bequests is the following:
"I wish my small ...
11
votes
5answers
2k views
Sorting cards using max 3 stacks
You have a stack of N cards numbered from 1 to N in random order.
You want to sort the cards in ascending order using the following procedure:
Your initial stack is stack 1.
You distribute the cards ...
9
votes
3answers
890 views
Hidden Message: Hidden in The Cards
The image below carry a hidden message. The image alone is not enough, you'll need to use the hints to uncover the hidden message. All the information needed to solve the puzzle is already given (as ...
10
votes
2answers
2k views
Two Card Probability Problem
I came across this puzzle somewhere on the interwebs. Has stumped me for an answer for quite sometime. Helpplease?
Someone picks, at their will, two cards from a deck of cards. The
cards have ...
9
votes
2answers
206 views
What are the odds that there is no solution on a given Set board?
I was playing a game of Set with a group. We had the usual twelve cards out and all agreed that there was no set. We then increased the number of cards to fifteen and were still unable to find a set....
7
votes
2answers
4k views
Are there any forms of patience or solitaire that can be solved by logic alone?
Single player games using a single deck of playing cards often called patience or solitaire, generally involve a degree of skill and luck to solve, with card shuffling ultimately being the deciding ...
4
votes
1answer
437 views
In the three-card monte, can a logical principle be applied to increase the odds?
Assuming the game is played without cheating, in the three-card monte, can a logical approach increase the player's chance of beating the house?
At first glance it would seem to be unlikely but a ...
