diff --git a/containstest/Cargo.lock b/containstest/Cargo.lock
new file mode 100644
index 0000000..818a5ee
--- /dev/null
+++ b/containstest/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "containstest"
+version = "0.1.0"
diff --git a/containstest/Cargo.toml b/containstest/Cargo.toml
new file mode 100644
index 0000000..e0fca19
--- /dev/null
+++ b/containstest/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "containstest"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/containstest/README.md b/containstest/README.md
new file mode 100644
index 0000000..6fe1428
--- /dev/null
+++ b/containstest/README.md
@@ -0,0 +1,3 @@
+# ContaintsTest
+
+Finding a way to check if any of multiple characters exist in string.
diff --git a/containstest/src/main.rs b/containstest/src/main.rs
new file mode 100644
index 0000000..9aa453d
--- /dev/null
+++ b/containstest/src/main.rs
@@ -0,0 +1,13 @@
+const INVALID: &'static str =  " ()[]/\"\\";
+
+fn invalid(check: &str) -> bool {
+    check.chars().any(|char| INVALID.contains(char))
+}
+
+fn main() {
+    let str = "thisisfine";
+    println!("{} - {}", str, invalid(str));
+
+    let str = "this is not fine";
+    println!("{} - {}", str, invalid(str));
+}