The following pictures show n squares with the largest possible sum of sides packed inside a unit equilateral triangle.
1.
2.
3.
Σ s = 2√3–3 = .46410+
Trivial.
Σ s = 18–10√3 = .67949+
Found by Erich Friedman
in June 2026.
Σ s = (63–31√3)/10 = .93064+
Found by Jonathan Viquerat
in June 2026.
4.
5.
6.
Σ s = 1.07948+
Found by Jonathan Viquerat
in June 2026.
Σ s = 1.22888+
Found by Jonathan Viquerat
in June 2026.
Σ s = (327–171√3)/22 = 1.40087+
Found by Jonathan Viquerat
in June 2026.
7.
8.
9.
Σ s = 1.51535+
Found by Jonathan Viquerat
in June 2026.
Σ s = 1.63240+
Found by Jonathan Viquerat
in June 2026.
Σ s = 1.75582+
Found by Jonathan Viquerat
in September 2026.
10.
11.
12.
Σ s = 1.86607+
Found by Haowei Lin
in July 2026.
Σ s = 1.96484+
Found by Jonathan Viquerat
in June 2026.
Σ s = 2.05916+
Found by Jonathan Viquerat
in June 2026.
13.
14.
15.
Σ s = 2.15473+
Found by Haowei Lin
in July 2026.
Σ s = 2.24353+
Found by Jonathan Viquerat
in September 2026.
Σ s = 2.33280+
Found by Haowei Lin
in July 2026.
16.
17.
18.
Σ s = 2.41865+
Found by Jonathan Viquerat
in June 2026.
Σ s = 2.49817+
Found by Haowei Lin
in July 2026.
Σ s = 2.57855+
Found by Haowei Lin
in July 2026.
19.
20.
21.
Σ s = 2.65121+
Found by Haowei Lin
in July 2026.
Σ s = 2.72549+
Found by Pedro Martins
in October 2026.
Σ s = 2.80200+
Found by Haowei Lin
in July 2026.
22.
23.
24.
Σ s = 2.87413+
Found by Joost de Winter
in October 2026.
Σ s = 2.94482+
Found by Pedro Martins
in October 2026.
Σ s = 3.07428+
Found by Jonathan Viquerat
in October 2026.
25.
26.
27.
Σ s = 3.07753+
Found by Pedro Martins
in October 2026.
Σ s = 3.14137+
Found by Pedro Martins
in October 2026.
Σ s = 3.20642+
Found by Pedro Martins
in October 2026.
28.
29.
30.
Σ s = 3.26855+
Found by Pedro Martins
in October 2026.
Σ s = 3.33257+
Found by Pedro Martins
in October 2026.
Σ s = 3.39587+
Found by Pedro Martins
in October 2026.
31.
32.
33.
Σ s = 3.45802+
Found by Pedro Martins
in October 2026.
Σ s = 3.51301+
Found by Pedro Martins
in October 2026.
Σ s = 3.57114+
Found by Pedro Martins
in October 2026.
34.
35.
36.
Σ s = 3.62861+
Found by Pedro Martins
in October 2026.
Σ s = 3.68232+
Found by Pedro Martins
in October 2026.
Σ s = 3.73662+
Found by Pedro Martins
in October 2026.
37.
38.
39.
Σ s = 3.79352+
Found by Pedro Martins
in October 2026.
Σ s = 3.84934+
Found by Pedro Martins
in October 2026.
Σ s = 3.90530+
Found by Pedro Martins
in October 2026.
40.
41.
42.
Σ s = 3.95527+
Found by Pedro Martins
in October 2026.
Σ s = 4.00767+
Found by Pedro Martins
in October 2026.
Σ s = 4.05784+
Found by Pedro Martins
in October 2026.
43.
44.
45.
Σ s = 4.10877+
Found by Pedro Martins
in October 2026.
Σ s = 4.15850+
Found by Pedro Martins
in October 2026.
Σ s = 4.20931+
Found by Pedro Martins
in October 2026.
46.
47.
48.
Σ s = 4.25711+
Found by Pedro Martins
in October 2026.
Σ s = 4.30451+
Found by Pedro Martins
in October 2026.
Σ s = 4.35631+
Found by Pedro Martins
in October 2026.
49.
50.
Σ s = 4.40169+
Found by Pedro Martins
in October 2026.
Σ s = 4.44802+
Found by Pedro Martins
in October 2026.