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A Tangled Tale · Chapter

Knot V: Oughts and Crosses explained

Clara and her aunt Mad Mathesis engage in a match of marking pictures at an art gallery, using crosses for good marks and oughts for bad marks under complex scoring conditions.

What happens

Clara and her aunt Mad Mathesis engage in a match of marking pictures at an art gallery, using crosses for good marks and oughts for bad marks under complex scoring conditions. Clara struggles with the rules and her choices, eventually encountering two kind old ladies who mistake her for being mad.

Themes in this chapter

  • Competition and Achievement

    Clara and Mad Mathesis engage in a competitive match of marking pictures, with Clara determined to win despite the complex rules.

  • Humor and Absurdity

    The absurdity of the marking conditions and Clara's literal interpretation of 'extreme cases' provide comedic elements.

Characters to notice

  • Clara

    Participates in the marking match with her aunt, struggles with the conditions, and encounters two old ladies.

  • Mad Mathesis

    Devises the complex marking match rules and accompanies Clara to the gallery.

  • Lieutenant Brown

    Subject of a portrait at the gallery, mounted on his favorite elephant.

Key passages

  • Our excellent preceptress always says 'When in doubt, my dears, take an extreme case.' And I was in doubt.

    Clara explains that she followed her teacher's advice to choose an extreme scenario when uncertain.

    Clara applies a logical rule to a real-world situation, leading to absurd results.

  • You must give three crosses to two or three pictures. You must give two crosses to four or five—

    Mad Mathesis outlines the complex scoring rules for the picture-marking match.

    The rules are deliberately convoluted, adding to the chapter's playful and absurd tone.