Packing problems

380 unit squares in a square

Unit squares; smaller container side is better.

380 unit squares in a square

This arrangement

19.961350

Container side · 8 significant figures

0.00126% smaller container side than the value listed in Francisco Couzo’s catalogue on 19 October 2026.

Comparison recorded 19 October 2026
ArrangementContainer side
This arrangement19.961350
Francisco Couzo’s catalogue19.961602

Difference: 0.00025173857 smaller side.

Compared with the exact certificate linked below.