*** Answer #1 ***
    0.  [TWGC] ====== [    ]
               [TG]=>
    1.  [ W C] ====== [T G ]
               <=[T]
    2.  [TW C] ====== [  G ]
               [TW]=>
    3.  [   C] ====== [TWG ]
               <=[TG]
    4.  [T GC] ====== [ W  ]
               [TC]=>
    5.  [  G ] ====== [TW C]
               <=[T]
    6.  [T G ] ====== [ W C]
               [TG]=>
    7.  [    ] ====== [TWGC]

*** Answer #2 ***
    0.  [TWGC] ====== [    ]
               [TG]=>
    1.  [ W C] ====== [T G ]
               <=[T]
    2.  [TW C] ====== [  G ]
               [TC]=>
    3.  [ W  ] ====== [T GC]
               <=[TG]
    4.  [TWG ] ====== [   C]
               [TW]=>
    5.  [  G ] ====== [TW C]
               <=[T]
    6.  [T G ] ====== [ W C]
               [TG]=>
    7.  [    ] ====== [TWGC]

*** path nodes used: 15