Why did Yudhishthira gamble despite knowing its consequences?

From: Sanket Prajapati

I have heard that in Mahabharata, King Yudhisthira accepts the request of Duryodhana for a match of gambling. Yudhisthira inspite of being a vaishanava why did he accepted the request? Did he not follow the four regulative principles in which gambling is to be avoided? I have also read in the Mahabharata that Yudhisthira knew that the result of this gambling match will not be appropriate, then too why did he accepted the request?