Packing problems
647 unit squares in a square
Unit squares; smaller container side is better.
This arrangement
25.949898
Container side · 8 significant figures
0.0129% smaller container side than the value listed in Francisco Couzo’s catalogue on 19 October 2026.
| Arrangement | Container side |
|---|---|
| This arrangement | 25.949898 |
| Francisco Couzo’s catalogue | 25.953249 |
Difference: 0.0033506007 smaller side.
Compared with the exact certificate linked below.