1  2  3  4  5  6  7  8  9  10 11 12 13 14 15 16
E  H  E  H  E  H  E  H  E  H  E  H  E  H  E  H
*  T  c  X  X  X  X  X  X  X  X  X  X  X  c  X
   *  T  X  X  X  X  X  X  X  X  X  X  X  X  X
      *  T  c  X  X  X  X  X  X  X  X  X  X  X
         *  T  X  X  X  X  X  X  X  X  X  X  X
            *  T  c  X  X  X  X  X  X  X  X  X
               *  T  X  X  X  X  X  X  X  X  X
                  *  T  c  X  X  X  X  X  X  X
                     *  T  X  X  X  X  X  X  X
                        *  T  c  X  X  X  X  X
                           *  T  X  X  X  X  X
                              *  T  c  X  X  X
                                 *  T  X  X  X
                                    *  T  c  X
                                       *  T  X
                                          *  T
                                             *                                           
handedness 1 2 3 R
handedness 3 4 5 R
handedness 5 6 7 R
handedness 7 8 9 R
handedness 9 10 11 R
handedness 11 12 13 R
handedness 13 14 15 R
handedness 15 16 1 R
sheetS 1 3 5 7 9 11 13 15