Penrose triangle
Oscar Reutersvärd; independently Lionel & Roger Penrose
Three convincing corners. One impossible connection.
Impossible objects / 2025 drawing
Impossible stepped polygon
A stepped polygon builds an intricate impossible path.
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View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
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Vectorization: Mrmw
Original file & attribution · CC BY-SA 4.0
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What is Impossible stepped polygon?
A stepped polygon builds an intricate impossible path.
What should I look for in Impossible stepped polygon?
View larger, then trace one connected edge all the way through the object. Compare the local joins with the whole shape.
What explains Impossible stepped polygon?
Trace the stepped outline and then the corresponding solid faces. Extra turns make it harder to notice where the apparent depth relationships cease to agree.
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Impossible cube
M. C. Escher; modern redraw by 4C and Belbury
A familiar cube frame acquires an impossible set of overlaps.
