I was reading Mahabharata and I came across a passage after Abhimanyu's wedding, where Krishna gives a speech and blames Shakuni and Duryodhan of cheating on Yudishtir, Krishna asks them to find someone or decide who will go to Duryodhan with peace offering asking for his half of the Kingdom
where Balaram agrees that Yudishtir should get half kingdom and the person who goes to Hastinapur should speak nicely and not blame Shakuni for cheating, I quote this part -
When Yudhishthira had his throne, he forgot himself by being engaged in gambling and was dispossessed by them of his kingdom. This valiant Kuru, this descendant of Ajamida, Yudhishthira, though not skilled in dice and though dissuaded by all his friends, challenged the son of the king of Gandhara, an adept at dice, to the match. There were then at that place thousands of dice-players whom Yudhishthira could defeat in a match. Taking however, no notice of any of them, he challenged Suvala's son of all men to the game, and so he lost. And although the dice constantly went against him, he would still have Sakuni alone for his opponent. Competing with Sakuni in the play, he sustained a crushing defeat. For this, no blame can attach to Sakuni.
Satyaki supports Yudishtir in this
It seems Yudishtir could change partner and not continue the game, why did he play with a skilled player like Shakuni?
What were the rules?