When Duryodhana, asks his Uncle to play on his behalf, Yudhishtira, could have simply asked Lord Krishna, his own cousin, to play from his side. If he had done that, there was no way Shakuni could've beaten him.
This is a very important lesson for all of us.
Sometimes, all we need to do, is just ask
P:S : All the discourses between Krishna And Uddhava, are recorded separately as the Uddhava Geeta or the Hamsa Geets. If anyone here knows, please post it.