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Subatomic CubeThe new world record for the smallest fully functional 3x3x3. Its has an edge length of only 6 mm.
Sunflower DodecahedronA corner turning dodecahedron somewhere between Pentagram and Radio Jewel.
Sunrise SunsetA triangular dipyramid with shallow slices at all five vertices. Three of these allow 90�-turns.

Super 1x2x3A try to make a 1x2x3 more difficult.
Super PyraminxA Pyraminx which allows 60� turns.
Superchop TetrahedronThe first puzzle which supports two traditional axis systems (both deep cut) of a tetrahedron.

Superclick CubeA cube which requires a lot of force to be twisted. In contrast to the Workout cube it uses magnets instead of friction.
SuperstarA (first) stellated rhombic dodecahedron which implements a hybrid of three different axis system.
Swap CubeFive differently coloured 2x2x2 embedded in a strange mechanism which allows one to exchange the cubies between the individual cubes.

Sweet Dream CubeA Nightmare Cube with revealed bandaging.
Switch Box PuzzleA 3x3x3 where edges and corners are optionally bandaged with red sliders.
Symbiotic CubesAt first it looks like a pair of Fused Cubes but the two parts are way more grown through each other.

TRIvial circlesA 2D puzzle with two overlapping circles that share one of their 3 leaves.
TSI SkewbA 3D printed skewb in the shape of a tetrahedrally stellated icosahedron, also known as a tetrahedrally diminished dodecahedron.
TanglelabacusA bigger variant of Astrolabacus with eight segments but still four channels of beads.


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