function buildBoards(board)
{
   var newBoards = [];
   for (var i = 0; i < 9; i++)
   {
      for (var j = 0; j < 9; j++)
      {
         console.log('benis')
         if (board[i][j] == null)
         {
            for (var k = 0; k < 9; k++)
            {

               newBoards.push(board);
               newBoards[k][i][j] = k + 1;
               console.log(newBoards[k]);
               console.log(k);
            }
            return newBoards;
         }

      }

   }

}

so for a smaller board you would take

       [null, 1]
and return
       [1,1],
       [2,1],
       ... ect