Size% = 5
      DIM array%(Size%-1,Size%-1)

      i% = 1
      j% = 1
      FOR e% = 0 TO Size%^2-1
        array%(i%-1,j%-1) = e%
        IF ((i% + j%) AND 1) = 0 THEN
          IF j% < Size% j% += 1 ELSE i% += 2
          IF i% > 1 i% -= 1
        ELSE
          IF i% < Size% i% += 1 ELSE j% += 2
          IF j% > 1 j% -= 1
        ENDIF
      NEXT

      @% = &904
      FOR row% = 0 TO Size%-1
        FOR col% = 0 TO Size%-1
          PRINT array%(row%,col%);
        NEXT
        PRINT
      NEXT row%