activity
20242026
collaborators

9 papers

math.CO2026

A Subtraction Nim with a Pass

Urban Larsson, Hikaru Manabe, Ryohei Miyadera

We consider a subtraction Nim with subtraction set {s_1,s_2,s_3={2,4n,4n+2}, where n is a positive integer such that n >= 3. We do not treat the case that n=1 or n=2 in this articl…

math.CO2026

Variants of Wythoff's Games with Different Terminal Sets

Kahori Komaki, Ryohei Miyadera, Aoi Murakami

We study a variant of the classical Wythoff's game. The classical form is played with two piles of stones, from which two players take turns to remove stones from one or both piles…

math.CO2026

A Variant of Wythoff's Game Defined by Hofstadter's G-Sequence

Kahori Komaki, Ryohei Miyadera, Aoi Murakami

In this paper, we study a variant of the classical Wythoff's game. The classical form is played with two piles of stones, from which two players take turns to remove stones from on…

math.CO2025

On the Sprague-Grundy values of games with a pass

Hikaru Manabe, Ryohei Miyadera, Koki Suetsugu

In this paper, we consider two-player impartial games with a pass-move. A disjunctive compound of games is a position in which, on each turn, the current player chooses one of the…

math.CO2025

Wythoff's Game with a Pass

Ryohei Miyadera, Hikaru Manabe, Masanori Fukui

This paper describes Wythoff's game with a pass, which is a variant of the classical Wythoff's game. The classical form is played with two piles of stones, from which two players t…

math.GM2025

Two Dimensional Silver Dollar Game

Ryohei Miyadera, Enchong Li, Akito Tsujii

We define a variant of the two-dimensional Silver Dollar game. Two coins are placed on a chessboard of unbounded size, and two players take turns choosing one of the coins and movi…