Patterns you can trust the math on.
Every crocheter knows the moment: round 14, the count is off by two, and you can't tell if it's you or the pattern. Half the time, it's the pattern. Stitch counts that don't add up, increases that can't produce the stated shape, finished sizes the gauge can't actually reach — most patterns are checked by eye, if at all.
kobyko patterns go through an arithmetic engine before publishing. It checks that every round consumes and produces the stitches it claims, that totals close round by round, that increase rates match the geometry — a flat circle needs exactly 2π × stitch-height per round, and the engine knows it — and that the gauge can reach the stated finished size. A pattern that fails doesn't get fixed in the margins; it gets rejected and rewritten.
That's also why our patterns show their numbers. Each one carries its stitch count table and a note of what was verified. Where something hasn't been swatched yet, the pattern says not yet swatched — we'd rather show you an honest gap than a confident guess.
ko · by · ko
The name reads two ways. In Korean, ko (코) is a stitch — so ko by ko is literally "stitch by stitch". The middots in the wordmark aren't decoration; they're the reading.
Built in public
The engine, the patterns, and the mistakes along the way are documented as we go — including the failures the checker catches and the ones it can't yet. If you like seeing how the sausage is made, the newsletter is where that goes.