Packing problems

869 unit squares in a square

Unit squares; smaller container side is better.

869 unit squares in a square

This arrangement

29.974937

Container side · 8 significant figures

0.0214% smaller container side than the value listed in Francisco Couzo’s catalogue on 19 October 2026.

Comparison recorded 19 October 2026
ArrangementContainer side
This arrangement29.974937
Francisco Couzo’s catalogue29.981360

Difference: 0.0064232288 smaller side.

Compared with the exact certificate linked below.