Every vertex has an even degree, yet the picture cannot be drawn with a single stroke.
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Issue 16
Fields medals, iconic intersections, and things with silly names coming your way in our autumn 2022 issue! Plus all your favourite puzzles & columns.
Crossnumber winners, Issue 14
Did you solve it?
Issue 13
Sus Mafia strategies, LMS president Ulrike Tillmann, and Bae's theorem ❤️ all feature in our spring 2021 edition. Plus all your favourite puzzles & columns.
Crossnumber winners
Are you a winner?