Answer:
Challenging the Moon-god Khonsu
Explanation:
Thoth was well aware that Re's curse could not be recalled, however Thoth found a wise form. He went to Khonsu, the Moon-god and challenged him to play a draughts contest and in every game Thoth was the winner and Khonsu every time risked more and lost a lot as well, in every play the Moon-god had not enough light to shine along the full month. In this way Thoth broke the curse, by challenging Khonsu.
