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We investigate the complexity of LTL learning, which consists in deciding given a finite set of positive ultimately periodic words, a finite set of negative ultimately periodic words, and a bound B given in unary, if there is an LTL-formula…

Logic in Computer Science · Computer Science 2023-12-19 Benjamin Bordais , Daniel Neider , Rajarshi Roy

We adopt the distribution and expectation of guessing times in game Wordle as metrics to predict the difficulty of words and explore their influence factors. In order to predictthe difficulty distribution, we use Monte Carlo to simulate the…

Computation and Language · Computer Science 2023-05-08 Beibei Liu , Yuanfang Zhang , Shiyu Zhang

We explore automatically predicting which Wordle games Reddit users find amusing. We scrape approximately 80k reactions by Reddit users to Wordle games from Reddit, classify the reactions as expressing amusement or not using OpenAI's…

Computation and Language · Computer Science 2025-06-09 Ronaldo Luo , Gary Liang , Cindy Liu , Adam Kabbara , Minahil Bakhtawar , Kina Kim , Michael Guerzhoy

We investigate the class of regular-ordered word equations. In such equations, each variable occurs at most once in each side and the order of the variables occurring in both sides is the preserved (the variables can be, however, separated…

Formal Languages and Automata Theory · Computer Science 2017-03-01 Joel D. Day , Florin Manea , Dirk Nowotka

The game of SET is a popular card game in which the objective is to form Sets using cards from a special deck. In this paper we study single- and multi-round variations of this game from the computational complexity point of view and…

Computational Complexity · Computer Science 2013-09-26 Michael Lampis , Valia Mitsou

We are going to show that some variants of a puzzle called Pull in which the boxes have handles (i.e. we can only pull the boxes in certain directions) are NP-hard

Computational Complexity · Computer Science 2018-01-01 Oscar Temprano

We investigate certain word-construction games with variable turn orders. In these games, Alice and Bob take turns on choosing consecutive letters of a word of fixed length, with Alice winning if the result lies in a predetermined target…

Formal Languages and Automata Theory · Computer Science 2020-04-29 Pierre Marcus , Ilkka Törmä

In the "Game about Squares" the task is to push unit squares on an integer lattice onto corresponding dots. A square can only be moved into one given direction. When a square is pushed onto a lattice point with an arrow the direction of the…

Computational Complexity · Computer Science 2014-08-21 Jens Maßberg

Consider a game of permutation wordle in which a player attempts to guess a secret permutation of length $n$ in as few guesses as possible. In each round, the guessing player is told which indices of their guessed permutation are correct.…

Combinatorics · Mathematics 2026-03-11 Aurora Hiveley

Although board games and video games have been studied for decades in artificial intelligence research, challenging word games remain relatively unexplored. Word games are not as constrained as games like chess or poker. Instead, word game…

Computation and Language · Computer Science 2021-05-14 Divya Koyyalagunta , Anna Sun , Rachel Lea Draelos , Cynthia Rudin

We present a new game, Dots & Polygons, played on a planar point set. Players take turns connecting two points, and when a player closes a (simple) polygon, the player scores its area. We show that deciding whether the game can be won from…

Computational Geometry · Computer Science 2020-05-27 Kevin Buchin , Mart Hagedoorn , Irina Kostitsyna , Max van Mulken , Jolan Rensen , Leo van Schooten

We prove that playing Candy Crush to achieve a given score in a fixed number of swaps is NP-hard.

Computational Complexity · Computer Science 2014-03-11 Toby Walsh

In this paper we study the complexity of strategic argumentation for dialogue games. A dialogue game is a 2-player game where the parties play arguments. We show how to model dialogue games in a skeptical, non-monotonic formalism, and we…

Logic in Computer Science · Computer Science 2013-12-17 Guido Governatori , Francesco Olivieri , Simone Scannapieco , Antonino Rotolo , Matteo Cristani

We show that for any eps>0 the problem of finding a factor (2-eps) approximation to the entangled value of a three-player XOR game is NP-hard. Equivalently, the problem of approximating the largest possible quantum violation of a tripartite…

Quantum Physics · Physics 2020-11-16 Thomas Vidick

We study the problem of adversarial language games, in which multiple agents with conflicting goals compete with each other via natural language interactions. While adversarial language games are ubiquitous in human activities, little…

Computation and Language · Computer Science 2020-12-18 Yuan Yao , Haoxi Zhong , Zhengyan Zhang , Xu Han , Xiaozhi Wang , Chaojun Xiao , Guoyang Zeng , Zhiyuan Liu , Maosong Sun

Cryptic crossword clues are challenging cognitive tasks, for which new test sets are released on a daily basis by multiple international newspapers. Each cryptic clue contains both the definition of the answer to be placed in the crossword…

Computation and Language · Computer Science 2024-07-15 Martin Andrews , Sam Witteveen

We show that the maximum success probability of players sharing quantum entanglement in a two-player game with classical questions of logarithmic length and classical answers of constant length is NP-hard to approximate to within constant…

Quantum Physics · Physics 2020-11-24 Anand Natarajan , Thomas Vidick

This paper presents iNNK, a multiplayer drawing game where human players team up against an NN. The players need to successfully communicate a secret code word to each other through drawings, without being deciphered by the NN. With this…

In a guessing game, players guess the value of a random real number selected using some probability density function. The winner may be determined in various ways; for example, a winner can be a player whose guess is closest in magnitude to…

Computer Science and Game Theory · Computer Science 2016-07-11 Anthony Mendes , Kent E. Morrison

The twentieth century has seen the rise of a new type of video games targeted at a mass audience of "casual" gamers. Many of these games require the player to swap items in order to form matches of three and are collectively known as…

Computational Complexity · Computer Science 2014-03-25 Luciano Gualà , Stefano Leucci , Emanuele Natale