Stillgrid

Calm sudoku platform with variants and daily challenges

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Stillgrid is a calm sudoku platform offering multiple puzzle variants, from Classic to Killer sudoku, with difficulty levels graded by solving technique. It is aimed at puzzle enthusiasts who want a clean, accessible way to play sudoku on mobile or the web.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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