Robertson #4
This is the Robertson #4 sett — one scale-free proportion (r28g2r5g2r28db3r3db24r3g24r3db3r28g2r5g2r28db3r3db24r3g24r3db3r28g2r5g2r28), colour order pattern
RGRGRBRBRGRBRGRGRBRBRGRBRGRGR. It is recorded as a single variant, below.
First attested ~2016.
| Scale | Variant | Earliest | |
|---|---|---|---|
| ×2 | Robertson #4 ★ | ~2016 |  |