Two-Color Interlocking Block Stitch
by Johnny Vasquez, http://newstitchaday.com/two-color-interlocking-block-stitch/

Two-Color Interlocking Block Stitch
Abbreviations:
- Ch — Chain Stitch
- dc — Double Crochet
- Sdc — Spike Double Crochet � Work dc over ch by inserting hk into top of next row below (or base ch).
Skill Level: Beginner
Row Count: 2
Pattern Repeat: Multiple of 6 sts plus 5
Stitch Characteristics: stripes | vertical
Pattern Instructions
Note: work 1 row in colors A and B alternately throughout.
Foundation Chain: Multiple of 6 sts plus 5
Prep Row (rs): Sk 3 ch (count as 1 dc), 1 dc into each of the next 2 ch, *3ch, sk 3 ch, 1dc into each of the next 3 ch; rep from * to end, turn.
Row 1: *3ch, sk 3 sts, 1Sdc over each of the next 3 sts; rep from * to last 3 sts, 2ch, sk 2 sts, sl st into top of tch, turn.
Row 2: Ch 3 (count as 1 Sdc), sk 1st st, 1 Sdc over each of next 2 sts, * 3ch, sk 3 sts, 1Sdc over each of next 3 sts; rep from * to end, turn.
Repeat rows 1 and 2 until desired length.