SK2P (Slip, K2tog, Pass)
SK2P is a left-leaning double decrease: slip one knitwise, knit two together, pass the slipped stitch over. Three stitches become one with a strong left lean.
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Mechanics
Slip the next stitch as if to knit. K2tog. Pass the slipped stitch over the k2tog and off the needle. Three stitches become one with a left-leaning slant.
When to use
When you want a double decrease with a strong left lean — for example, in lace patterns that need a left-leaning centreline, or in mitre patterns worked from the corner outward.
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Compared to s2kp
s2kp preserves the centre stitch on top, producing no lean. SK2P passes the leftmost slipped stitch over the k2tog, producing a left lean. Use s2kp for symmetric centrelines and SK2P for asymmetric shaping.
Pairing
Often paired with k3tog (a right-leaning double decrease) for symmetric shawl shaping or sleeve cap finishing.
Abbreviation reference
| Abbreviation | Meaning |
|---|---|
| sk2p | slip 1, k2tog, pass slipped over |
| k3tog | knit three together |
| psso | pass slipped stitch over |
Tips
- Slip the first stitch knitwise, not purlwise — purlwise slipping twists the stitch.
- Use SK2P for left-leaning double decreases; use k3tog for right-leaning and s2kp for centred.
- In Shetland lace, SK2P is sometimes called "psso decrease" and is paired with k3tog.
In depth
SK2P combines a slipped stitch with a k2tog and a pass-over to convert three stitches into one. Because the leftmost slipped stitch is the one passed over the k2tog, the resulting column leans to the left.