Packing problems

417 unit squares in a square

Unit squares; smaller container side is better.

417 unit squares in a square

This arrangement

20.934672

Container side · 8 significant figures

0.0374% smaller container side than the value listed in Francisco Couzo’s catalogue on 19 October 2026.

Comparison recorded 19 October 2026
ArrangementContainer side
This arrangement20.934672
Francisco Couzo’s catalogue20.942506

Difference: 0.0078334464 smaller side.

Compared with the exact certificate linked below.