MEMORY & FOCUS

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Across
  1. 3. that helps solve answers
  2. 5. meant to challenge the mind
  3. 7. to recall information
  4. 8. problem that tests thinking
  5. 9. that controls thought
Down
  1. 1. to concentrate attention
  2. 2. of remembering learned facts
  3. 3. board game with kings
  4. 4. of valid reasoning
  5. 6. of squares in a crossword