diff --git a/years-spoiler.html b/years-spoiler.html
index 3f0439aef..ab860509e 100644
--- a/years-spoiler.html
+++ b/years-spoiler.html
@@ -116,12 +116,15 @@ Contest </I></FONT></CENTER>
 <LI><A HREF="2020/ferguson1/HACKING">HACKING</A>
 <LI><A HREF="2020/ferguson1/Makefile">Makefile</A>
 <LI><A HREF="2020/ferguson1/bugs.html">bugs.html</A>
+<LI><A HREF="2020/ferguson1/bugs.markdown">bugs.markdown</A>
 <LI><A HREF="2020/ferguson1/bugs.text">bugs.text</A>
 <LI><A HREF="2020/ferguson1/cake.jpg">cake.jpg</A>
 <LI><A HREF="2020/ferguson1/cannibalism.log">cannibalism.log</A>
+<LI><A HREF="2020/ferguson1/chocolate-cake.html">chocolate-cake.html</A>
 <LI><A HREF="2020/ferguson1/chocolate-cake.text">chocolate-cake.text</A>
 <LI><A HREF="2020/ferguson1/crazy.log">crazy.log</A>
 <LI><A HREF="2020/ferguson1/gameplay.html">gameplay.html</A>
+<LI><A HREF="2020/ferguson1/gameplay.markdown">gameplay.markdown</A>
 <LI><A HREF="2020/ferguson1/gameplay.text">gameplay.text</A>
 <LI><A HREF="2020/ferguson1/halfwidth_vs_fullwidth.png">halfwidth_vs_fullwidth.png</A>
 <LI><A HREF="2020/ferguson1/hint.text">hint.text</A>
@@ -135,11 +138,14 @@ Contest </I></FONT></CENTER>
 <LI><A HREF="2020/ferguson1/snake-colours.sh">snake-colours.sh</A>
 <LI><A HREF="2020/ferguson1/snake.1">snake.1</A>
 <LI><A HREF="2020/ferguson1/spoilers.html">spoilers.html</A>
+<LI><A HREF="2020/ferguson1/spoilers.markdown">spoilers.markdown</A>
 <LI><A HREF="2020/ferguson1/spoilers.text">spoilers.text</A>
 <LI><A HREF="2020/ferguson1/termcaps.c">termcaps.c</A>
 <LI><A HREF="2020/ferguson1/terminals.html">terminals.html</A>
+<LI><A HREF="2020/ferguson1/terminals.markdown">terminals.markdown</A>
 <LI><A HREF="2020/ferguson1/terminals.text">terminals.text</A>
 <LI><A HREF="2020/ferguson1/troubleshooting.html">troubleshooting.html</A>
+<LI><A HREF="2020/ferguson1/troubleshooting.markdown">troubleshooting.markdown</A>
 <LI><A HREF="2020/ferguson1/troubleshooting.text">troubleshooting.text</A>
 </UL>
 <A NAME="2020_ferguson2"></A>
@@ -156,12 +162,14 @@ Contest </I></FONT></CENTER>
 <LI><A HREF="2020/ferguson2/input.txt">input.txt</A>
 <LI><A HREF="2020/ferguson2/ioccc-cake.jpg">ioccc-cake.jpg</A>
 <LI><A HREF="2020/ferguson2/obfuscation.key">obfuscation.key</A>
+<LI><A HREF="2020/ferguson2/obfuscation.markdown">obfuscation.markdown</A>
 <LI><A HREF="2020/ferguson2/obfuscation.text">obfuscation.text</A>
 <LI><A HREF="2020/ferguson2/obfuscation.txt">obfuscation.txt</A>
 <LI><A HREF="2020/ferguson2/prog.c">prog.c</A>
 <LI><A HREF="2020/ferguson2/recode.1">recode.1</A>
 <LI><A HREF="2020/ferguson2/recode.c">recode.c</A>
 <LI><A HREF="2020/ferguson2/recode.html">recode.html</A>
+<LI><A HREF="2020/ferguson2/recode.markdown">recode.markdown</A>
 <LI><A HREF="2020/ferguson2/recode.text">recode.text</A>
 <LI><A HREF="2020/ferguson2/try.this.txt">try.this.txt</A>
 </UL>
@@ -198,9 +206,7 @@ Contest </I></FONT></CENTER>
 <LI><A HREF="2020/kurdyukov2/hint.text">hint.text</A>
 <LI><A HREF="2020/kurdyukov2/makegif.sh">makegif.sh</A>
 <LI><A HREF="2020/kurdyukov2/prog.c">prog.c</A>
-<LI><A HREF="2020/kurdyukov2/prog.png">prog.png</A>
 <LI><A HREF="2020/kurdyukov2/prog.png.c">prog.png.c</A>
-<LI><A HREF="2020/kurdyukov2/prog.ppm">prog.ppm</A>
 <LI><A HREF="2020/kurdyukov2/prog.ppm.c">prog.ppm.c</A>
 <LI><A HREF="2020/kurdyukov2/sample.jpg">sample.jpg</A>
 </UL>
diff --git a/years.html b/years.html
index ecc3d0db9..295224bf2 100644
--- a/years.html
+++ b/years.html
@@ -123,12 +123,15 @@ a summary description of all of the winners.  </P>
 <LI><A HREF="2020/ferguson1/HACKING">HACKING</A>
 <LI><A HREF="2020/ferguson1/Makefile">Makefile</A>
 <LI><A HREF="2020/ferguson1/bugs.html">bugs.html</A>
+<LI><A HREF="2020/ferguson1/bugs.markdown">bugs.markdown</A>
 <LI><A HREF="2020/ferguson1/bugs.text">bugs.text</A>
 <LI><A HREF="2020/ferguson1/cake.jpg">cake.jpg</A>
 <LI><A HREF="2020/ferguson1/cannibalism.log">cannibalism.log</A>
+<LI><A HREF="2020/ferguson1/chocolate-cake.html">chocolate-cake.html</A>
 <LI><A HREF="2020/ferguson1/chocolate-cake.text">chocolate-cake.text</A>
 <LI><A HREF="2020/ferguson1/crazy.log">crazy.log</A>
 <LI><A HREF="2020/ferguson1/gameplay.html">gameplay.html</A>
+<LI><A HREF="2020/ferguson1/gameplay.markdown">gameplay.markdown</A>
 <LI><A HREF="2020/ferguson1/gameplay.text">gameplay.text</A>
 <LI><A HREF="2020/ferguson1/halfwidth_vs_fullwidth.png">halfwidth_vs_fullwidth.png</A>
 <LI><A HREF="2020/ferguson1/hint.text">hint.text</A>
@@ -142,11 +145,14 @@ a summary description of all of the winners.  </P>
 <LI><A HREF="2020/ferguson1/snake-colours.sh">snake-colours.sh</A>
 <LI><A HREF="2020/ferguson1/snake.1">snake.1</A>
 <LI><A HREF="2020/ferguson1/spoilers.html">spoilers.html</A>
+<LI><A HREF="2020/ferguson1/spoilers.markdown">spoilers.markdown</A>
 <LI><A HREF="2020/ferguson1/spoilers.text">spoilers.text</A>
 <LI><A HREF="2020/ferguson1/termcaps.c">termcaps.c</A>
 <LI><A HREF="2020/ferguson1/terminals.html">terminals.html</A>
+<LI><A HREF="2020/ferguson1/terminals.markdown">terminals.markdown</A>
 <LI><A HREF="2020/ferguson1/terminals.text">terminals.text</A>
 <LI><A HREF="2020/ferguson1/troubleshooting.html">troubleshooting.html</A>
+<LI><A HREF="2020/ferguson1/troubleshooting.markdown">troubleshooting.markdown</A>
 <LI><A HREF="2020/ferguson1/troubleshooting.text">troubleshooting.text</A>
 </UL>
 <A NAME="2020_ferguson2"></A>
@@ -163,12 +169,14 @@ a summary description of all of the winners.  </P>
 <LI><A HREF="2020/ferguson2/input.txt">input.txt</A>
 <LI><A HREF="2020/ferguson2/ioccc-cake.jpg">ioccc-cake.jpg</A>
 <LI><A HREF="2020/ferguson2/obfuscation.key">obfuscation.key</A>
+<LI><A HREF="2020/ferguson2/obfuscation.markdown">obfuscation.markdown</A>
 <LI><A HREF="2020/ferguson2/obfuscation.text">obfuscation.text</A>
 <LI><A HREF="2020/ferguson2/obfuscation.txt">obfuscation.txt</A>
 <LI><A HREF="2020/ferguson2/prog.c">prog.c</A>
 <LI><A HREF="2020/ferguson2/recode.1">recode.1</A>
 <LI><A HREF="2020/ferguson2/recode.c">recode.c</A>
 <LI><A HREF="2020/ferguson2/recode.html">recode.html</A>
+<LI><A HREF="2020/ferguson2/recode.markdown">recode.markdown</A>
 <LI><A HREF="2020/ferguson2/recode.text">recode.text</A>
 <LI><A HREF="2020/ferguson2/try.this.txt">try.this.txt</A>
 </UL>
@@ -205,9 +213,7 @@ a summary description of all of the winners.  </P>
 <LI><A HREF="2020/kurdyukov2/hint.text">hint.text</A>
 <LI><A HREF="2020/kurdyukov2/makegif.sh">makegif.sh</A>
 <LI><A HREF="2020/kurdyukov2/prog.c">prog.c</A>
-<LI><A HREF="2020/kurdyukov2/prog.png">prog.png</A>
 <LI><A HREF="2020/kurdyukov2/prog.png.c">prog.png.c</A>
-<LI><A HREF="2020/kurdyukov2/prog.ppm">prog.ppm</A>
 <LI><A HREF="2020/kurdyukov2/prog.ppm.c">prog.ppm.c</A>
 <LI><A HREF="2020/kurdyukov2/sample.jpg">sample.jpg</A>
 </UL>