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Bibliographic Details
Main Author: Prellberg, Thomas
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2602.07751
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author Prellberg, Thomas
author_facet Prellberg, Thomas
contents Using a constraint satisfaction approach, we exhibit configurations of $2n$ points on the $n\times n$ grid for all $n\le60$ with no three collinear. Consequently, the smallest $n$ for which it is unknown whether $D(n)=2n$ increases from $47$ to $61$.
format Preprint
id arxiv_https___arxiv_org_abs_2602_07751
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Constraint Satisfaction Programming for the No-three-in-line Problem
Prellberg, Thomas
Combinatorics
Using a constraint satisfaction approach, we exhibit configurations of $2n$ points on the $n\times n$ grid for all $n\le60$ with no three collinear. Consequently, the smallest $n$ for which it is unknown whether $D(n)=2n$ increases from $47$ to $61$.
title Constraint Satisfaction Programming for the No-three-in-line Problem
topic Combinatorics
url https://arxiv.org/abs/2602.07751