FirstGofer: Agree with the other comments:
rubik's cube (6x9) and Sudoku (9x9) - I'm afraid that solution just doesn't work.
Perhaps if you'd chosen Sear's or Petronas in the tall buildings category , it would have worked but as Banana said, all 4 are in New York. (2 weeks, 3 days ago)
Banana: Agree sudoku and rubik's cubemail not 4x4. And New York buildings not accepted. Pretty ropey! (2 weeks, 4 days ago)
Twiki: Both Sudokus and Rubik's Cubes are not 4x4 (2 weeks, 4 days ago)