A certain children's game involves starting with a word in a particular category.   Each participant in turn says a word, but that word must begin with the final letter of the previous word.   Once a word has been given, it cannot be repeated.   If an opponent cannot give a word in the category, they fall out of the game.



For example, with   "animals"   as the category,

Child 1: dog 
Child 2: goldfish
Child 1: hippopotamus
Child 2: snake
...



Task

Take the following selection of 70 English Pokemon names   (extracted from   Wikipedia's list of Pokemon)   and generate the/a sequence with the highest possible number of Pokemon names where the subsequent name starts with the final letter of the preceding name.

No Pokemon name is to be repeated.

audino bagon baltoy banette bidoof braviary bronzor carracosta charmeleon
cresselia croagunk darmanitan deino emboar emolga exeggcute gabite
girafarig gulpin haxorus heatmor heatran ivysaur jellicent jumpluff kangaskhan
kricketune landorus ledyba loudred lumineon lunatone machamp magnezone mamoswine
nosepass petilil pidgeotto pikachu pinsir poliwrath poochyena porygon2
porygonz registeel relicanth remoraid rufflet sableye scolipede scrafty seaking
sealeo silcoon simisear snivy snorlax spoink starly tirtouga trapinch treecko
tyrogue vigoroth vulpix wailord wartortle whismur wingull yamask



Extra brownie points for dealing with the full list of   646   names.




(   audino bagon baltoy banette bidoof braviary bronzor
    carracosta charmeleon cresselia croagunk darmanitan deino
    emboar emolga exeggcute gabite girafarig gulpin haxorus
    heatmor heatran ivysaur jellicent jumpluff kangaskhan
    kricketune landorus ledyba loudred lumineon lunatone machamp
    magnezone mamoswine nosepass petilil pidgeotto pikachu
    pinsir poliwrath poochyena porygon2 porygonz registeel
    relicanth remoraid rufflet sableye scolipede scrafty seaking
    sealeo silcoon simisear snivy snorlax spoink starly
    tirtouga trapinch treecko tyrogue vigoroth vulpix wailord
    wartortle whismur wingull yamask
  : ?names
& 0:?max
& :?sequence
& ( lalefile
  =   done todo A M Z Length first
    .   !arg:(!done.)&!done:?sequence
      |   !arg:(.?todo)
        & (   !todo
            :   ?A
                %@?M
                (?Z&lalefile$(!M.!A !Z)&~)
          | 
          )
      |   !arg:(@(%:? @?first) ?:?done.?todo)
        & :?M
        & (   !todo
            :   ?A
                @(%:!first ?:?M)
                ( ?Z
                & lalefile$(!M !done.!A !Z)
                & ~
                )
          |   !M:
            & !done:? [?Length
            & !Length:>!max:?max
            & !done:?sequence
          | 
          )
  )
& lalefile$(.!names)
& out$("Length:" !max "Sequence:" !sequence)
);