fall apart like a house of cards

Translations
рассыпаться, как карточный домик
The team's strategy fell apart like a house of cards once the competition began.
Стратегия команды рассыпалась, как карточный домик, как только начались соревнования.
Definitions
To collapse or fail suddenly and completely, often because it is weak, unstable, or poorly constructed, much like a house of cards that easily falls down with the slightest disturbance.
Words
card

noun
карточка
house

noun
дом
fall

verb
падать
fall apart

verb
разваливаться
apart

adverb
врозь