1000 Hard Sudoku Puzzles to Improve Your IQ

by Kalman Toth M a M Phil

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  • ISBN10 1492960330
  • ISBN13 9781492960331
  • Publish Date 12 October 2013
  • Publish Status Active
  • Imprint Createspace Independent Publishing Platform
  • Format Paperback (US Trade)
  • Pages 642
  • Language English