挑戦 and 挑む: forms of challenge and unreported achievement
Compare competition commitments and an expedition's goal with the stated change to a work from a technique attempt.
挑戦: a race commitment and a change to a work
挑戦 (ちょうせん) means challenge or attempt. 「今年は初めて長距離の水泳大会に挑戦します。」 means “This year, I am taking on a long-distance swimming race for the first time.” The first long-distance swimming race is a commitment for this year; no placing is given.
「新しい技法への挑戦が作品に変化を与えた。」 means “The attempt to use a new technique changed the work.” The technique attempt is explicitly said to have changed the work.
挑む: a first tournament and a summit goal
挑む (いどむ) means to challenge or to confront. 「新人選手が初めて全国大会に挑む。」 means “The rookie athlete will compete in the national tournament for the first time.” The rookie will face a first national tournament, without a winning result.
「調査隊は厳しい自然に挑みながら頂上を目指した。」 means “The expedition headed for the summit while confronting harsh natural conditions.” The expedition headed for the summit while confronting harsh conditions; arrival is unreported.
Read challenges, changes, and achievement separately
挑戦 is a noun or する expression, while 挑む is a verb. Their forms do not rank success.
Retain the stated change to the work without adding achievement to the competition or summit examples.
Does the expedition's 挑みながら and heading for the summit establish summit arrival?
Show the answer and why
No. The action and goal are reported, without arrival. The separate technique 挑戦 example does explicitly report a change to the work.