https://senseis.xmp.net/?MetaphoricalNamesForTheGameOfGo
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手談 shudan, hand talk
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爛柯 ranka, rotted axe handle
(From the tale of a woodcutter who, captivated by a game of Go played between Immortals, didn’t notice that so much time had passed that the handle of his axe had rotted away. Name of the Ranka Yearbook of the IGF.) -
烏鷺 uro, crow and heron
(From the colours. This name is alluded to by the illustration on the cover of Tagaisen Joseki Shinpyo.) -
方円 houen, square and circles. This is the word in Hoensha.
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坐隠 zain, sitting hermits. As in Zain Danso.
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忘憂 bouyuu, forgetting worries
Something to consider when the debate over the crowded searchspace of go comes up: we could always call the game by one of these names instead.