Puzzler
Part of speech: noun
Definition: A puzzling situation or problem; an enigma. A video game in which the player is presented with (usually abstract) puzzles to solve.
Puzzle
Part of speech: verb
Definition: To perplex (someone).
Part of speech: noun
Definition: Anything that is difficult to understand or make sense of.A game for one person that is more or less difficult to work out or complete.A crossword puzzle.A jigsaw puzzle.A riddle.
Example sentence: All pieces of the puzzle need to fall in the right place to be a champion team.