chess game vs shogi

chess game and shogi both are nouns.

Word	Noun	Adjective	Verb	Adverb
chess game	Yes	No	No	No
shogi	Yes	No	No	No

As nouns, shogi is a hyponym of chess game; that is, shogi is a word with a more specific, narrower meaning than chess game:

chess game: a board game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king
shogi: a form of chess played on a board of 81 squares; each player has 20 pieces

Other hyponyms of chess game include chess composition.

chess game (noun)	shogi (noun)
a board game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king	a form of chess played on a board of 81 squares; each player has 20 pieces