A geometry problem that has been puzzling scientists for 60 years has likely just been solved by an amateur mathematician with a newly discovered 13-sided shape.
Modeling the Newly Discovered Aperiodic Monotile with Geometiles - Geometiles®
Einstein tilings – the amazing “Hat” shape that never repeats! – Sophos News
Hats Off to This Aperiodic Tiling
Newly discovered 'einstein' shape can do something no other tile can do – KION546
Newly discovered 'einstein' shape can do something no other tile can do
Space + Science
Newly discovered 'einstein' shape can do something no other tile can do
Einstein Tile Puzzle : 3 Steps - Instructables
Newly discovered 'einstein' tile is a 13-sided shape that solves a decades-old math problem
A 'vampire einstein' tile outdoes mathematicians' latest feat
Meet a New Shape: “The Hat” - San Diego Squared
Einstein Tile Design Sheet (FREE PDF Download!) – Paper Pieces
Special New “Einstein” Shape Never Repeats
At Long Last, Hobbyist Discovers Einstein Tile