diff --git a/subjects/badexample00.md b/subjects/badexample00.md
new file mode 100644
index 000000000..ecdacda6c
--- /dev/null
+++ b/subjects/badexample00.md
@@ -0,0 +1,7 @@
+```
+####
+...#
+....
+....
+
+```
diff --git a/subjects/badexample01.md b/subjects/badexample01.md
new file mode 100644
index 000000000..6b4dab175
--- /dev/null
+++ b/subjects/badexample01.md
@@ -0,0 +1,7 @@
+```
+...#
+..#.
+.#..
+#...
+
+```
diff --git a/subjects/badexample02.md b/subjects/badexample02.md
new file mode 100644
index 000000000..6b4dab175
--- /dev/null
+++ b/subjects/badexample02.md
@@ -0,0 +1,7 @@
+```
+...#
+..#.
+.#..
+#...
+
+```
diff --git a/subjects/badexample03.md b/subjects/badexample03.md
new file mode 100644
index 000000000..f251e4a06
--- /dev/null
+++ b/subjects/badexample03.md
@@ -0,0 +1,7 @@
+```
+....
+....
+....
+....
+
+```
diff --git a/subjects/badexample04.md b/subjects/badexample04.md
new file mode 100644
index 000000000..422ea3646
--- /dev/null
+++ b/subjects/badexample04.md
@@ -0,0 +1,7 @@
+```
+..##
+....
+....
+##..
+
+```
diff --git a/subjects/badformat.md b/subjects/badformat.md
new file mode 100644
index 000000000..42dd7e167
--- /dev/null
+++ b/subjects/badformat.md
@@ -0,0 +1,22 @@
+```
+...#
+...#
+...#
+...#
+....
+....
+....
+####
+
+
+.###
+...#
+....
+....
+
+....
+..##
+.##.
+....
+
+```
diff --git a/subjects/goodexample00.md b/subjects/goodexample00.md
new file mode 100644
index 000000000..0c79a0576
--- /dev/null
+++ b/subjects/goodexample00.md
@@ -0,0 +1,7 @@
+```
+....
+.##.
+.##.
+....
+
+```
diff --git a/subjects/goodexample01.md b/subjects/goodexample01.md
new file mode 100644
index 000000000..cabaf9603
--- /dev/null
+++ b/subjects/goodexample01.md
@@ -0,0 +1,22 @@
+```
+...#
+...#
+...#
+...#
+
+....
+....
+....
+####
+
+.###
+...#
+....
+....
+
+....
+..##
+.##.
+....
+
+```
diff --git a/subjects/goodexample02.md b/subjects/goodexample02.md
new file mode 100644
index 000000000..324fc2e52
--- /dev/null
+++ b/subjects/goodexample02.md
@@ -0,0 +1,42 @@
+```
+...#
+...#
+...#
+...#
+
+....
+....
+....
+####
+
+.###
+...#
+....
+....
+
+....
+..##
+.##.
+....
+
+....
+.##.
+.##.
+....
+
+....
+....
+##..
+.##.
+
+##..
+.#..
+.#..
+....
+
+....
+###.
+.#..
+....
+
+```
diff --git a/subjects/goodexample03.md b/subjects/goodexample03.md
new file mode 100644
index 000000000..9c7002735
--- /dev/null
+++ b/subjects/goodexample03.md
@@ -0,0 +1,57 @@
+```
+....
+.##.
+.##.
+....
+
+...#
+...#
+...#
+...#
+
+....
+..##
+.##.
+....
+
+....
+.##.
+.##.
+....
+
+....
+..#.
+.##.
+.#..
+
+.###
+...#
+....
+....
+
+##..
+.#..
+.#..
+....
+
+....
+..##
+.##.
+....
+
+##..
+.#..
+.#..
+....
+
+.#..
+.##.
+..#.
+....
+
+....
+###.
+.#..
+....
+
+```
diff --git a/subjects/hardexam.md b/subjects/hardexam.md
new file mode 100644
index 000000000..9178f570f
--- /dev/null
+++ b/subjects/hardexam.md
@@ -0,0 +1,62 @@
+```
+....
+.##.
+.##.
+....
+
+.#..
+.##.
+.#..
+....
+
+....
+..##
+.##.
+....
+
+....
+.##.
+.##.
+....
+
+....
+..#.
+.##.
+.#..
+
+.###
+...#
+....
+....
+
+##..
+.#..
+.#..
+....
+
+....
+.##.
+.##.
+....
+
+....
+..##
+.##.
+....
+
+##..
+.#..
+.#..
+....
+
+.#..
+.##.
+..#.
+....
+
+....
+###.
+.#..
+....
+
+```
\ No newline at end of file