diff --git a/subjects/badexample00.md b/subjects/badexample00.md
new file mode 100644
index 00000000..ad5a09d1
--- /dev/null
+++ b/subjects/badexample00.md
@@ -0,0 +1,11 @@
+## bad example
+
+- Create your file and copy the example into it.
+
+```
+####
+...#
+....
+....
+
+```
diff --git a/subjects/badexample01.md b/subjects/badexample01.md
new file mode 100644
index 00000000..5a242f76
--- /dev/null
+++ b/subjects/badexample01.md
@@ -0,0 +1,11 @@
+## bad example
+
+- Create your file and copy the example into it.
+
+```
+...#
+..#.
+.#..
+#...
+
+```
diff --git a/subjects/badexample02.md b/subjects/badexample02.md
new file mode 100644
index 00000000..5a242f76
--- /dev/null
+++ b/subjects/badexample02.md
@@ -0,0 +1,11 @@
+## bad example
+
+- Create your file and copy the example into it.
+
+```
+...#
+..#.
+.#..
+#...
+
+```
diff --git a/subjects/badexample03.md b/subjects/badexample03.md
new file mode 100644
index 00000000..5ba3cfb1
--- /dev/null
+++ b/subjects/badexample03.md
@@ -0,0 +1,11 @@
+## bad example
+
+- Create your file and copy the example into it.
+
+```
+....
+....
+....
+....
+
+```
diff --git a/subjects/badexample04.md b/subjects/badexample04.md
new file mode 100644
index 00000000..49c19cd9
--- /dev/null
+++ b/subjects/badexample04.md
@@ -0,0 +1,11 @@
+## bad example
+
+- Create your file and copy the example into it.
+
+```
+..##
+....
+....
+##..
+
+```
diff --git a/subjects/badformat.md b/subjects/badformat.md
new file mode 100644
index 00000000..79d55e8c
--- /dev/null
+++ b/subjects/badformat.md
@@ -0,0 +1,26 @@
+## bad example
+
+- Create your file and copy the example into it.
+
+```
+...#
+...#
+...#
+...#
+....
+....
+....
+####
+
+
+.###
+...#
+....
+....
+
+....
+..##
+.##.
+....
+
+```
diff --git a/subjects/goodexample00.md b/subjects/goodexample00.md
new file mode 100644
index 00000000..14de9460
--- /dev/null
+++ b/subjects/goodexample00.md
@@ -0,0 +1,11 @@
+## good example
+
+- Create your file and copy the example into it.
+
+```console
+....
+.##.
+.##.
+....
+
+```
diff --git a/subjects/goodexample01.md b/subjects/goodexample01.md
new file mode 100644
index 00000000..6febbae1
--- /dev/null
+++ b/subjects/goodexample01.md
@@ -0,0 +1,26 @@
+## good example
+
+- Create your file and copy the example into it.
+
+```
+...#
+...#
+...#
+...#
+
+....
+....
+....
+####
+
+.###
+...#
+....
+....
+
+....
+..##
+.##.
+....
+
+```
diff --git a/subjects/goodexample02.md b/subjects/goodexample02.md
new file mode 100644
index 00000000..4b8d7784
--- /dev/null
+++ b/subjects/goodexample02.md
@@ -0,0 +1,46 @@
+## good example
+
+- Create your file and copy the example into it.
+
+```
+...#
+...#
+...#
+...#
+
+....
+....
+....
+####
+
+.###
+...#
+....
+....
+
+....
+..##
+.##.
+....
+
+....
+.##.
+.##.
+....
+
+....
+....
+##..
+.##.
+
+##..
+.#..
+.#..
+....
+
+....
+###.
+.#..
+....
+
+```
diff --git a/subjects/goodexample03.md b/subjects/goodexample03.md
new file mode 100644
index 00000000..48b6ea0d
--- /dev/null
+++ b/subjects/goodexample03.md
@@ -0,0 +1,61 @@
+## good example
+
+- Create your file and copy the example into it.
+
+```
+....
+.##.
+.##.
+....
+
+...#
+...#
+...#
+...#
+
+....
+..##
+.##.
+....
+
+....
+.##.
+.##.
+....
+
+....
+..#.
+.##.
+.#..
+
+.###
+...#
+....
+....
+
+##..
+.#..
+.#..
+....
+
+....
+..##
+.##.
+....
+
+##..
+.#..
+.#..
+....
+
+.#..
+.##.
+..#.
+....
+
+....
+###.
+.#..
+....
+
+```
diff --git a/subjects/hardexam.md b/subjects/hardexam.md
new file mode 100644
index 00000000..9c07f07c
--- /dev/null
+++ b/subjects/hardexam.md
@@ -0,0 +1,66 @@
+## hard example
+
+- Create your file and copy the example into it.
+
+```
+....
+.##.
+.##.
+....
+
+.#..
+.##.
+.#..
+....
+
+....
+..##
+.##.
+....
+
+....
+.##.
+.##.
+....
+
+....
+..#.
+.##.
+.#..
+
+.###
+...#
+....
+....
+
+##..
+.#..
+.#..
+....
+
+....
+.##.
+.##.
+....
+
+....
+..##
+.##.
+....
+
+##..
+.#..
+.#..
+....
+
+.#..
+.##.
+..#.
+....
+
+....
+###.
+.#..
+....
+
+```
\ No newline at end of file