With some slight adjustments, it’s entirely possible to play chess on a spherical board. Game board by Paul, using magnetic pieces.
seen from United States
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seen from United Kingdom
seen from United Kingdom

seen from Türkiye
seen from United Kingdom
seen from United Kingdom
seen from Sweden
seen from China
seen from China
seen from China
seen from Estonia
seen from China
seen from United Kingdom

seen from United States
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seen from China
With some slight adjustments, it’s entirely possible to play chess on a spherical board. Game board by Paul, using magnetic pieces.