From 399861e260fe1e141d34acb5ecea8947a88e975b Mon Sep 17 00:00:00 2001
From: "Achim D. Brucker" <adbrucker@0x5f.org>
Date: Sat, 3 Nov 2018 21:06:33 +0000
Subject: [PATCH] Updated reference.

---
 doc/solutions | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/solutions b/doc/solutions
index c6ce58d..9e4c957 160000
--- a/doc/solutions
+++ b/doc/solutions
@@ -1 +1 @@
-Subproject commit c6ce58d6e3d306c210de2843c8f080e86a9c2187
+Subproject commit 9e4c957f24a7aee0e000070ea345282e9560503e