Open corners: Sunburst Granny Square Generator

Change corner space without changing post count

This study keeps sixteen center repeats but uses three chains at every square corner. A leaner two-loop puff and a three-post cluster distinguish the center from the baseline specimen. The goal is to compare corner openness and loop workload as separate decisions. More corner chains do not add double crochets to an edge, and a smaller puff bundle does not reduce the number of center repeats. Physical corner shape remains a matter for the chosen yarn and tension.

Set all structural inputs

Select sixteen center repeats, two puff loops, three cluster partial posts, one puff-spacing chain, three corner chains and two square border rounds. Work in US terms for the initial check. Choose smooth DK cotton and a four-millimeter trial hook. Keep scissors, a tapestry needle, four markers and a ruler nearby. Use compatible blue, gold, coral and ivory yarns, repeating ivory in the fifth palette slot so both square rounds use the same frame color.

Make the leaner center deliberately

Start with sixteen double crochets in a magic ring. For each puff, repeat yarn over, insert and draw up a loop twice. Five loops are on the hook before the closing pull-through. Chain one to secure, then one for spacing. In each spacing arch, make a three-post double-crochet cluster and chain two. Four loops remain before closing that cluster. Do not substitute the baseline's seven-loop puff or four-post cluster without updating the saved design.

Complete generated working record

Download this exact Sunburst JSON into the Sunburst Granny Square Generator.

1. Magic ring: ch2 (not counted),16 dc; sl st to first dc. Tighten ring. Count 16 completed units; chains separate.
2. Join puff color. In each dc make one puff:[yarn over, insert and draw up a loop] 2 times; yarn over and pull through all5 loops; ch1 to secure, then ch1 for spacing. Join to first puff. 16 puffs and16 spacing arches. Count 16 completed units; chains separate.
3. In each spacing arch work one 3-dc cluster, ch2. Cluster:[yarn over, insert, draw up a loop, yarn over and pull through2] 3 times; yarn over and pull through all4 loops. Join to first cluster. 16 clusters and16 ch-2 spaces. Count 16 completed units; chains separate.
4. Join in a ch-2 space; ch3 (not counted). Repeat four sectors:[3 tr, ch3,3 tr] in corner space; 3 dc in next space,3 hdc in next,3 dc in next. Sl st to first actual stitch. 60 counted posts and12 corner chains. Count 60 completed units; chains separate.
5. Join in corner space; ch2 (not counted). In each corner work(3 dc, ch3,3 dc). Between corners work3 dc in each of the4 group gaps. Sl st to first dc. 72 dc and12 corner chains. Count 72 completed units; chains separate.

Keep the sixteen-space squaring sequence

Divide the cluster arches into four sectors of four. In the corner arch work three trebles, chain three and three trebles. In the next three arches work three double crochets, three half double crochets and three double crochets. Each sector still contains fifteen posts, so the full round still has sixty. The extra chain changes the corner arch length rather than the number of completed posts in its two legs.

Retain the open corners while expanding

The next frame uses three chains in each corner as well. Work six double crochets around each corner arch and three double crochets in each of four side gaps. This produces seventy-two double crochets, just as an otherwise equivalent two-chain-corner frame would. Mark the corner spaces themselves, not the individual chain links as if they were several separate corners. The source diagram shows three chain symbols between the incoming and outgoing post groups.

Verify chains and completed units separately

The round counts are sixteen, sixteen, sixteen, sixty and seventy-two, or 180 completed units. The puff ring contributes thirty-two chains and the cluster ring thirty-two. Each square round contributes twelve corner chains, so the two frames add twenty-four. The resulting eighty-eight chains exclude starting-height chains and joins. Compared with two-chain corners on both frames, the corner budget increases by eight chains without changing those 180 completed units.

Evaluate the join and finishing plan

Wash and measure the specimen before pairing it with another motif. A three-chain corner may require a different joining decision from a two-chain corner even when their post totals agree. If a corner spreads unexpectedly, review chain tension and the measured trial rather than silently removing a post. If the next round has too many groups, check whether the three chain links were mistaken for three insertion spaces. Does this case certify a flat square or exact hole size? No physical sample is claimed. Consult the joining guide before treating equal edge counts as proof of equal finished dimensions.