A C2C is a way to make a decorative square. The square is made up of blocks of 3 stitches. The blocks can be made of almost-any stitch. Just be sure to use the same stitch throughout.

The type of yarn you use will depend on what you want the final piece to look like. If you use a self-striping yarn, it will interrupt the flow of the colors because you work just a single block at a time.

This also means that yarn that pools or flashes will likely able to be avoided if you do it in C2C. You’ll need to crochet it to confirm though.

What a Typical C2C Will Look Like

Abbreviations

ch… chain

dc… double crochet

RS… right side

sl st… slip stitch

st… stitch 

WS… wrong side

Notes

• C2C is worked from corner to corner, in a diagonal, rather than in rows.
• The 1^st block is the top-left corner or the bottom-right corner of the work when seen from the RS.
• The 1^st row will have 1 block.
• Work increases of 1 block per row until desired width is reached. You have a triangle.
• At this point, you may work in even rows (for a rectangle) or proceed to decreases (for a square).
• Work decreases of 1 block per row until 1 block remains. 
• To work into an existing block, you will insert your hook into the space between its starting ch-3 and its 3-dc – this is the ch-3 space.

Increases

Row 1. Ch 6, dc in 4^th ch from hook, dc in next 2 chs. Turn. 1 block; each block consists of a ch 3 and 3 dc throughout.

Row 2. Ch 6, dc in 4^th ch from hook, dc in next 2 chs (1 block added), sl st into the ch-3 space of the Row 1 block, ch 3, 3 dc in same space. Turn. 2 blocks made.

Row 3. Ch 6, dc in 4^th ch from hook, dc in next 2 chs (1 block added), *sl st into the ch-3 space of the next block from the previous row, ch 3, 3 dc in same space, repeat from * once. Turn. 3 blocks made.

Row 4. Ch 6, dc in 4^th ch from hook, dc in next 2 chs (1 block added), *sl st into the ch-3 space of the next block from the previous row, ch 3, 3 dc in same space, repeat from * across. Turn. +1 block after each row.

Repeat Row 4 until desired width is achieved.

Decreases

After last even or increase row, turn to begin decreasing.

Decrease Row. Sl st into the 3 sts of the last block made and into it’s ch-3 space, ch 3, 3 dc in same space, *sl st into the ch-3 space of the next block from the previous row, ch 3, 3 dc in same space, repeat from * until 1 block remains, sl st into the last block’s ch-3 space. Turn. 1 block less each row.

Repeat Decrease Row until 2 blocks remain.

Last Row. Sl st into the 3 sts of the last block made and into it’s ch-3 space, ch 3, 3 dc in same space, sl st into the last block’s ch-3 space. 1 block remains.

Fasten off and weave ends in.

Our Sample

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The increases ended after 4 blocks were made.