diff --git a/docs/diagrams/DIYProblemSet.puml b/docs/diagrams/DIYProblemSet.puml
new file mode 100644
index 000000000..62aff9fff
--- /dev/null
+++ b/docs/diagrams/DIYProblemSet.puml
@@ -0,0 +1,15 @@
+@startuml
+
+class DIYProblemSet {
+        - problemSet: ArrayList<Problem>
+
+        + DIYProblemSet()
+        + addDIYProblemSet(ui: Ui): void
+}
+
+DIYProblemSet --> Problem
+DIYProblemSet --> Test
+DIYProblemSet --> Ui
+DIYProblemSet --> Test
+
+@enduml
\ No newline at end of file
diff --git a/recordList.txt b/recordList.txt
index 4fb32ff84..8b1378917 100644
--- a/recordList.txt
+++ b/recordList.txt
@@ -1,9 +1 @@
-2024-04-15 17:59:04 0.0 0.0 60559209 user-DIY 463d_,23.0 
-2024-04-15 18:01:52 31.57894736842105 0.0 78253069 auto-generated 87-58,29.0 90*60,5400.0 65/5,13.0 71*50,3550.0 43+46,89.0 32+56,88.0 43*81,3483.0 75/8,9.375 30+52,82.0 68/9,7.556 
-2024-04-15 18:03:47 3.75 1.0 60559209 user-DIY 463d_,23.0 
-2024-04-15 18:14:21 0.0 0.0 1234776916 user-DIY 2][,343.0 
-2024-04-15 18:14:49 3.333333333333333 1.0 1234776916 user-DIY 2][,343.0 
-2024-04-15 22:21:39 54.54545454545455 0.0 -76978608 auto-generated 92*88,8096.0 63-56,7.0 49-12,37.0 24-57,-33.0 86-77,9.0 46-37,9.0 22+23,45.0 84-14,70.0 40/1,40.0 72*73,5256.0 
-2024-04-15 22:33:39 100.0 0.0 -76978608 auto-generated 59+28,87.0 9/8,1.125 67-86,-19.0 18-28,-10.0 47*52,2444.0 10/8,1.25 18-93,-75.0 2/3,0.667 19/7,2.714 89*10,890.0 
-2024-04-15 22:36:06 120.0 0.0 -76978608 auto-generated 57*40,2280.0 12/2,6.0 21*17,357.0 38+16,54.0 84+34,118.0 23+86,109.0 85+57,142.0 71+15,86.0 3*30,90.0 50/6,8.333 
-2024-04-15 22:38:40 300.0 0.0 -76978608 auto-generated 96*82,7872.0 16+77,93.0 98+9,107.0 25/6,4.167 17+66,83.0 44+36,80.0 86/8,10.75 19-81,-62.0 45-54,-9.0 78/7,11.143 
+