diff --git a/diagram_gap.tex b/diagram_gap.tex
new file mode 100644
index 0000000000000000000000000000000000000000..d8efc1b1524cfdc2cc9f12dd74501cc814537eb0
--- /dev/null
+++ b/diagram_gap.tex
@@ -0,0 +1,44 @@
+\documentclass{standalone}
+\usepackage[T1]{fontenc}
+\usepackage{amsmath}
+\usepackage{amsfonts}
+\usepackage{parskip}
+\usepackage{marvosym} %Lightning symbol
+\usepackage[usenames,dvipsnames]{color}
+\usepackage[hidelinks]{hyperref}
+\renewcommand*{\familydefault}{\sfdefault}
+
+\usepackage{bbm} %For \mathbbm{1}
+%\usepackage{bbold}
+\usepackage{tikz}
+
+\begin{document}
+
+\begin{tikzpicture}
+    \draw[gray] (0,0) -- (10,0);
+    \draw[gray,dotted] (0,2) -- (10,2);
+    \draw[gray] (0,2) arc (90:270:1);
+    \draw[gray] (10,0) arc (-90:90:1);
+    \foreach \x in {0,...,10} {
+        \draw[fill] (\x,0) circle (0.04);
+    }
+    \draw[fill] (11,1) circle (0.04);
+    \draw[fill] (-1,1) circle (0.04);
+
+    \foreach \x in {1,2,4,7,9} {
+        \draw[fill,red] (\x,0) circle (0.08);
+    }
+
+    \draw[<->] (1,-0.5) -- (9,-0.5);
+    \draw (5,-0.9) node {$\mathcal{D}(C)$};
+
+    \draw[<->] (4.9,0.3) -- (6.1,0.3);
+    \draw (5.5,0.7) node {$\mathrm{gap}(C)$};
+
+    \draw[fill,red] (1,-2) circle (0.08);
+    \draw (2,-2) node {slots $C$};
+    \draw[fill] (5,-2) circle (0.04);
+    \draw (6.5,-2) node {non-slots $[n]\setminus C$};
+\end{tikzpicture}
+
+\end{document}