Stitch Glossary
CCD (Central Chain Decrease): slip two stitches together knitwise, k1, pass two slipped stitches over stitch just worked.
k2tog: knit two stitches together as one
ssk (slip, slip, knit): slip two stitches one at a time knitwise, place tip of stitch-holding needle into both stitches from the tip end of working needle, knit slipped stitches together as one. (In other words, you are slipping the stitches individually to put their left legs in front, then knitting both together in the back loop.)
5-in-1 Pickup
Round 1: After placing thumb gusset stitches on needles, knit thumb gusset stitches around thumb to the gap created by the cast-on stitch above the gusset. On edge of gap where you are supposed to pick up stitches (where most patterns indicate picking up a single stitch), pick up the bar from the row below the one you are working. Place on non-working needle with leading leg in front and knit into the back loop so it twists. Knit three stitches across cast-on edge. (Be sure middle stitch is picked up from the cast-on stitch). On the other edge of the gap, pick up the bar from the row below, place on non-working needle with the leading leg in front, and knit into the back loop so it twists. (5 stitches picked up.)
Round 2: Knit around. When you reach the five picked up stitches, ssk, k1, k2tog.
Round 3: Knit.
Round 4: CCD. Continue as per pattern.
3-in-1 Pickup
Round 1: After placing thumb gusset stitches on needles, knit thumb gusset stitches around thumb to the gap created by the cast-on stitch above the gusset. On edge of gap where you are supposed to pick up stitches (where most patterns indicate picking up a single stitch), pick up three stitches across cast-on edge. (Be sure the middle stitch is worked into the cast on stitch). (3 stitches picked up.)
Round 2: Knit around. When you reach the three stitches you picked up, work a CCD. Continue as per pattern.
Weave in your end to close the small gap that remains.
Happy gap-free knitting!