Puzzles/Action sequences/Crossing the River II/Solution

Puzzles | Action sequences | Crossing the River II | Solution

Label the fathers A, B and C, the sons a, b and c, river. and boat &lt; &gt;.

AaBbCc &lt; &gt;.....         ........ A B Cc  ..&lt;ab&gt;.. ........ A B Cc .....&lt;  &gt;  a b         ........ A B Cc  ..&lt;b &gt;.. a        ........ A BbCc &lt;  &gt;..... a        ........ A B C   ..&lt;bc&gt;.. a        ........ A B C  .....&lt;  &gt;  a b c         ........ A B C   ..&lt;c &gt;.. a b        ........ A B Cc &lt;  &gt;..... a b        ........     Cc  ..&lt;AB&gt;.. a b        ........ Cc .....&lt;  &gt; AaBb ........    Cc  ..&lt;Bb&gt;.. Aa        ........   BbCc &lt;  &gt;..... Aa        ........    b c  ..&lt;BC&gt;.. Aa        ........ b c .....&lt;  &gt; AaB C         ........    b c  ..&lt;a &gt;.. A B C        ........  a b c &lt;  &gt;..... A B C        ........      c  ..&lt;ab&gt;.. A B C        ........ c ....&lt;  &gt;  AaBbC ........     c  ..&lt;C &gt;.. AaBb ........    Cc &lt;  &gt;..... AaBb ........        ...&lt;Cc&gt;. AaBb ........        .....&lt;  &gt; AaBbCc