Online since 2002. The most comprehensive site for all around twisty puzzles.

Brett Ballow
Bandaged QuadFour intersecting circles rotated with the help of plungers restricted in their movement.
Grid Slider 5A sliding block puzzle of five tiles retained within a cross track and a square ring.
Hex-Tri Slider (Version A)A sliding block puzzle with a mixture of moveable hexagons and triangles.

Hex-Tri Slider (Version B)A sliding block puzzle with a mix of moveable hexagons and triangles. Compared with the first version the plungers have different offsets to each other.
Hexagonal 10 PuzzleA hexagonal version of the classic "15" puzzle.
Hexagonal 12 PuzzleA hexagonal sliding block puzzle with twelve pieces and two holes.

Hexagonal 8 PuzzleA hexagonal sliding block puzzle with eight pieces and two holes.
Moving hole - TriangularA moving hole puzzle with 16 triangular pieces in two separate sets and two holes.
ReciprocatorTwo sets of parallel plungers are also connected by an inner pinion. Pressing one plunger causes the adjacent plunger to move in the opposite direction.

Rhombus-Tri SliderA sliding piece puzzle similar to Elemental:Argon but with three plungers instead of four and some other small changes.

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