Maxwell's puzzling demon v1.5.11[h3]Levels update[/h3] Slightly changed 3-G.Adjusted 3-11?, 5-6?, 6-12? and w5?₁₆.
Maxwell's puzzling demon v1.5.10[h3]Levels update[/h3] Fixed 4-9, B-3 and B-23 to prevent unintended solutions.Adjusted 1-15 and 5-1?.
Maxwell's puzzling demon v1.5.9[h3]Levels update[/h3] Slightly simplified 3-11 and 3-12.Changed 3-15 and 3-16.
Maxwell's puzzling demon v1.5.8[h3]Levels update[/h3] Changed 9-22 and B-31.Fixed A-A to prevent an unintended solution.[h3]Other changes[/h3] Fixed incorrect behavior of pistons destroyed by the 4th temperature, which could have occurred after 9-21.