Project Blanket - Square #9 - Tunnel Lace Stitch

Pattern Instructions 
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Multiple of 3 + 2

Row 1 (right side) P2, *YO, K1, P2; rep from * to end.
Row 2: K2, *P3; rep from * to end 
Row 3: P2, *K3, P2; rep from * to end 
Row 4: K2, *P3tog, K2; rep from * to end 

Repeat these 4 rows until the desired length.