Black HoleA sliding block puzzle with three differently coloured cubies.
Blind Varikon Box'sA puzzle with the mechanism of the Varikon 2x2x2 but the goal of Rubiks Dice.
Blocked Barrel 15A puzzle which looks like the wellknown moving-hole-puzzle-with-cylindrical-surface but has a mechanism which goes beyond that.
BloxboxA puzzle equivalent to Varikon 2x2x2 but produced way before the cube craze.
Bram's Black HoleNine cubes (and a hole) in a frame. The cubes change orientation while being moved.
Bram's ShuffleA Moving-Hole-Puzzle in 3D and (even rarer) in octahedral shape.
Caged InAnother variant of Peter's Black hole.
Calendar PuzzleThis sliding tiles puzzle/calendar/coin bank has a total of 41 tiles arranged in seven columns and six rows.