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Blivet effect
Blivet effect

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Blivet effect opaque
Blivet effect opaque

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Impossible trefoil knot Isometric
Impossible trefoil knot Isometric

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Penrose hexagon
Penrose hexagon

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Penrose hexagon label
Penrose hexagon label

368x440
Penrose impossible staircase
Penrose impossible staircase

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Penrose impossible staircase label
Penrose impossible staircase label

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Penrose octagon
Penrose octagon

400x400
Penrose octagon label
Penrose octagon label

400x500
Penrose pentagon
Penrose pentagon

416x414
Penrose pentagon label
Penrose pentagon label

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Penrose pentagram
Penrose pentagram

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Penrose pentagram label
Penrose pentagram label

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Penrose rectangle Solomons knot
Penrose rectangle Solomons knot

600x600
Penrose rectangle Solomons knot label
Penrose rectangle Solomons knot label

600x710
Penrose square
Penrose square

422x422
Penrose square label
Penrose square label

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Penrose triangle bright
Penrose triangle bright

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Penrose triangle bright label
Penrose triangle bright label

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Penrose triangle grayscale
Penrose triangle grayscale

355x357
Penrose triangle grayscale label
Penrose triangle grayscale label

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Penrose triangle outline
Penrose triangle outline

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Penrose triangle outline label
Penrose triangle outline label

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Penrose triangle shaded
Penrose triangle shaded

431x409
Penrose triangle shaded label
Penrose triangle shaded label

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Principia Discordia
Principia Discordia

637x607
impossible box
impossible box

303x312
impossible box 2
impossible box 2

284x274
impossible box 3
impossible box 3

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impossible cube
impossible cube

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impossible gears
impossible gears

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tribar illusion color
tribar illusion color

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tribar illusion color label
tribar illusion color label

508x572
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