From 84c35244c9bdd635609af703bbf3053c16c487c0 Mon Sep 17 00:00:00 2001
From: baturg <45969505+baturg@users.noreply.github.com>
Date: Tue, 3 Nov 2020 11:55:05 +0100
Subject: [PATCH] Update nqueens_sat.ipynb

The notebook fails to run without setting the value of the board_size variable.
---
 examples/notebook/examples/nqueens_sat.ipynb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/examples/notebook/examples/nqueens_sat.ipynb b/examples/notebook/examples/nqueens_sat.ipynb
index 13ad00b7ec..4109c9599a 100644
--- a/examples/notebook/examples/nqueens_sat.ipynb
+++ b/examples/notebook/examples/nqueens_sat.ipynb
@@ -116,6 +116,8 @@
     "        print()\n",
     "\n",
     "\n",
+    "# Sets the size of the board.\n",
+    "board_size = 8\n",
     "# Creates the solver.\n",
     "model = cp_model.CpModel()\n",
     "# Creates the variables.\n",