
Parva 9
Shalya Parva
The last day of the war, and a duel that ended it against the rules
The killing of Shalya
After Karna, Shalya became commander. He held the post for less than half a day. Yudhishthira killed him, throwing the spear called Shakti. It is his single greatest kill of the whole war, and command passed and vanished almost in the same breath, hardly falling to anyone else at all.
The killing of Shakuni
What remained after that was no longer an army, only scattered warriors with no hope left in them. Shakuni was killed, by Sahadeva's hand, the same Shakuni whose dice had started this entire war. Duryodhana's brothers fell one after another, Bhima had sworn to kill them all, and that vow too was fulfilled, one by one, as though an old list were finally being cleared.
By evening Duryodhana was alone. No commander, no brother, no army stood with him on the field. He left the battlefield and hid inside a lake, beneath the water, by his own illusion, as if the water could keep him outside this war.
Duryodhana in the lake
The Pandavas came searching and found him there. They stood on the bank and called out to him. Duryodhana said from within that everyone was already dead, what use was a kingdom now, he was exhausted, alone. Yudhishthira told him to come out. And then he said something he should not have said. He offered that Duryodhana could choose any one of the five, fight him with any weapon he liked, and if he won, the whole kingdom would be his. Krishna was furious. He pointed out that Duryodhana had spent thirteen years perfecting the mace, and had surpassed even Bhima at that one weapon, and Yudhishthira had staked an already-won war in a single sentence. Duryodhana came out and chose Bhima, and the mace as his weapon.
Balarama arrives
Before the fight began, Balarama arrived. He had been on pilgrimage and had stayed out of the entire war, fighting for neither side, stopping neither. Both Bhima and Duryodhana had been his students, and both had learned the mace from him. He sat down to watch, keeping equal distance from both.
The mace fight
The fight went on long, and Duryodhana began to gain the upper hand, his grip on the mace better than Bhima's. Krishna looked toward Arjuna, and Arjuna slapped his own thigh. Bhima understood the sign. He struck Duryodhana on the thigh with his mace. The rule of mace combat was that no blow was struck below the waist. Balarama rose, called it unjust, and moved to strike Bhima down. Krishna stopped him. He reminded him of the vow Bhima had made on the day of the dice game, the day Duryodhana had shown Draupadi his thigh, a vow every bit as old as this war. Balarama did not agree, but withdrew. Duryodhana lay there, his thigh shattered, alive, alone, in the middle of the field. The eighteenth day ended.
Note: Shalya killed within half a day, the killing of Shakuni, Duryodhana hiding in the lake, Yudhishthira's offer, Balarama leaving and the blow to the thigh are all in the Shalya Parva of Vyasa's Mahabharata. Bhima's vow is from the Sabha Parva and is kept here to the letter. The text does not say the blow was right — Balarama's objection is recorded there, and so is Krishna's answer.
Source: Mahabharata (ascribed by tradition to Vyasa), Shalya Parva