 Numbers in (red) are total possible solutions for this shape.Notes:Many have spent weeks solving this one. At least you know that the 'H' piece must be part of the puzzle - right? Hint: The 3x3x6 has 54 integral cubes. Which leaves 10 cubes not accounted for in the 12 pieces. Since the 'H' has 7 cubes and there is no 3 cube piece then the 'H' is part of the puzzle. With this large piece and two openings that allow only white pieces to fit it takes a bit of logic to figure out which 2 pieces cannot be part of the puzzle.
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