An user English
says…

This
Pronoun
  is
Auxiliary
  a
Determiner
  very
Adverb
  effective
Adjective
  method
Noun
  of
Subordinating conjunction
  solving
Verb
  these
Determiner
  puzzles
Noun
.

This is a very effective method of solving these puzzles.
Words and sentences
New
This

plural of Thi

New
is

New
a

New
effective

New
method

New
of

New
solving

present participle and gerund of solve

New
puzzles

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