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      Permanent link:
      https://www.ias.ac.in/article/fulltext/reso/020/09/0788-0802

    • Keywords

       

      Adjacency matrix; internal block; Latin square; orthogonal Latin squares; orthogonal Sudoku squares; Sudoku graph; Sudoku puzzle.

    • Author Affiliations

       

      Jyotirmoy Sarkar1 Bikas K Sinha2

      1. Indiana University-Purdue University, Indianapolis, USA
      2. Indian Statistical Institute, Kolkata
    • Dates

       

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