XJ Curvy Face-Turning Rhombic Triacontahedron Plus

The XJ Curvy Face-Turning Rhombic Triacontahedron Plus is a 30-face WitEden-style shape puzzle that turns on curvy face cuts across all of its rhombic faces. The Plus build adds deeper cutting for a more intricate, layered solve than the standard version.

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Why you’ll like it

• A genuine collector’s puzzle: A 30-face rhombic triacontahedron with curvy face-turning cuts is rare, complex geometry you won’t find in a standard lineup.
• Deeper cuts, deeper solve: The Plus build takes the curvy face-turning mechanism further, adding layers and interactions the standard version doesn’t have.
• Striking display piece: The stained-glass look of the curved cuts across 30 faces makes this as much a shelf centerpiece as a puzzle.

Performance & design highlights

• Curvy face-turning mechanism: Every rhombic face turns on curved cut lines, splitting each face into multiple interacting pieces.
• Rhombic triacontahedron shape: 30 identical rhombic faces built into a rounded, hand-friendly form.
• Black plastic base: High-contrast black frame that makes the colored faces pop and reads cleanly during a solve.

Specs at a glance

• Puzzle type: Curvy face-turning rhombic triacontahedron
• Faces: 30 rhombic faces
• Build: Plus (deeper-cut variant)
• Plastic color: Black
• Brand: XJ

Best fit for collectors who want the hardest version of this rhombic triacontahedron, with the extra cutting depth the standard build leaves on the table.