a proverb meaning that when one is driven to extremes, a way out is often found; similar to 'necessity is the mother of invention'
窮すれば通ずと言うから、まずできることを試してみよう。
They say 'necessity is the mother of invention,' so let's try what we can first.
資金が底をついたが、窮すれば通ずで新しい販売先を見つけた。
Funds ran out, but by necessity he found a new sales channel.