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No Feedback Card Guessing for Top to Random Shuffles

Probability 2010-06-08 v1

Abstract

Consider n cards that are labeled 1 through n with n an even integer. The cards are put face down and their ordering starts with card labeled 1 on top through card labeled n at the bottom. The cards are top to random shuffled m times and placed face down on the table. Starting from the top the cards are guessed without feedback (i.e. whether the guess was correct or false and what the guessed card was) one at a time. For m > 4nlog n+cn we find a guessing strategy that maximizes the expected number of correct guesses.

Keywords

Cite

@article{arxiv.1006.1321,
  title  = {No Feedback Card Guessing for Top to Random Shuffles},
  author = {Lerna Pehlivan},
  journal= {arXiv preprint arXiv:1006.1321},
  year   = {2010}
}

Comments

17 pages

R2 v1 2026-06-21T15:32:56.394Z