The poster depicts the notorious chess match between Calmasis and Zazzerpan. Zazzerpan had a reputation for being unbeatable. He had never lost a match, even to the gods. But his apprentice was able to beat him in the wizard's duel by first becoming checkmated, and through some unprecedented enchantment, continuing to play beyond the death of the king.
...man.
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another place and time, without a great divide, and we could be flying deadly high