Rubik's Cube

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Across
  1. 5. Cube difficulty
  2. 6. Game genre
  3. 8. Cube design
  4. 9. Rubik, Inventor of the cube
  5. 11. Solving, Mental exercise
  6. 14. Reasoning ability
  7. 15. Competitive solving of the cube
  8. 16. Cube design
  9. 19. Cube category
  10. 20. Notation, System for describing moves
  11. 21. Feeling when struggling with the cube
  12. 22. Bending, Puzzle difficulty
  13. 23. Cube accomplishment
  14. 24. Sequence of cube moves
  15. 26. Skill in manipulating objects
  16. 28. Cube design arrangement
Down
  1. 1. Mental capacity
  2. 2. Cube status
  3. 3. Cube mechanism
  4. 4. Nostalgic style
  5. 6. Culture, Popular trends
  6. 7. Teaser, Mental challenge
  7. 10. Record, Fastest cube solving time
  8. 12. Cube benefits
  9. 13. Goal of puzzle
  10. 17. Cube, Puzzle toy
  11. 18. Cube invention
  12. 21. Cube entertainment
  13. 25. Standard cube size
  14. 27. Rotation of cube sides