<!DOCTYPE ksudoku-graph>
<ksudoku-graph>
 <graph sizeX="6" sizeY="6" sizeZ="1" ncliques="18" order="6" 
type="custom" specific-type="6x6" name="6x6">

  <sudokugroups at="0" withblocks="0" />
  <clique size="6" > 0  1  6  7 12 13 </clique>
  <clique size="6" >18 19 24 25 30 31 </clique>
  <clique size="6" > 2  3  8  9 14 15 </clique>
  <clique size="6" >20 21 26 27 32 33 </clique>
  <clique size="6" > 4  5 10 11 16 17 </clique>
  <clique size="6" >22 23 28 29 34 35 </clique>

 </graph>
</ksudoku-graph>
