# ­xkcd thread

**URL:** <https://boards.straightdope.com/t/xkcd-thread/854574>\
**Category:** Cafe Society\
**Tags:** comic-strips\
**Created:** [May 28, 2020, 12:57am UTC](https://boards.straightdope.com/t/xkcd-thread/854574 "2020-05-28T00:57:03Z")\
**Posts on this page:** 1\
**Showing post:** 3954

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [February 2, 2025, 8:44pm UTC](https://boards.straightdope.com/t/xkcd-thread/854574/3954 "2025-02-02T20:44:46Z")

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Underpromotion to a knight does show up occasionally, in chess puzzles. And even a rook or bishop can be the right move, in extremely niche situations (i.e., where promotion to a queen would result in stalemate).

A few years back, I asked if it’d ever actually happened in a real game that [there were two bishops on the same color](https://boards.straightdope.com/t/matched-bishops-has-it-ever-actually-happened/791359), and it turns out that it has, a few times, as either a joke, a mistake, or an insult.

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