Artikel

The exact query complexity of yes-no permutation mastermind

Mastermind is famous two-player game. The first player (codemaker) chooses a secret code which the second player (codebreaker) is supposed to crack within a minimum number of code guesses (queries). Therefore, the codemaker's duty is to help the codebreaker by providing a well-defined error measure between the secret code and the guessed code after each query. We consider a variant, called Yes-No AB-Mastermind, where both secret code and queries must be repetition-free and the provided information by the codemaker only indicates if a query contains any correct position at all. For this Mastermind version with n positions and kÏn colors and ℓ:=k+1−n , we prove a lower bound of ∑kj=ℓlog2j and an upper bound of nlog2n+k on the number of queries necessary to break the secret code. For the important case k=n , where both secret code and queries represent permutations, our results imply an exact asymptotic complexity of Θ(nlogn) queries.

Sprache
Englisch

Erschienen in
Journal: Games ; ISSN: 2073-4336 ; Volume: 11 ; Year: 2020 ; Issue: 2 ; Pages: 1-11 ; Basel: MDPI

Klassifikation
Wirtschaft
Thema
Mastermind
permutation
query complexity

Ereignis
Geistige Schöpfung
(wer)
el Ouali, Mourad
Sauerland, Volkmar
Ereignis
Veröffentlichung
(wer)
MDPI
(wo)
Basel
(wann)
2020

DOI
doi:10.3390/g11020019
Handle
Letzte Aktualisierung
10.03.2025, 11:42 MEZ

Datenpartner

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Objekttyp

  • Artikel

Beteiligte

  • el Ouali, Mourad
  • Sauerland, Volkmar
  • MDPI

Entstanden

  • 2020

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