Adding escape ladder for level 20

diff --git a/dm020.grl b/dm020.grl
new file mode 100644 (file)
index 0000000..946f76a
--- /dev/null
+++ b/dm020.grl
@@ -0,0 +1 @@
+          MMMMMMMMMMMMMMM      ZH     M    M               ZHTTTTTM       TTTN         HH    NM     HM   N        XHH    NM   MHHM   N        XHH    NM   MH     N   N    XHN       E MH     N  HMN   XNHMXMXMXMX MMXH   N  H N N XHH R       MM H   MTTH N MMNHHMMMM     MN H   M    N   XZH X      MMM H        N   XZH X E     MM H        N    ZZ X       M  H        N    ZZ MMMMMHMMM  H             ZZ      H     H           XMXMXMXMXMXMXMXMHX                          H                           H                           H         EE           MMMMMMMMMMMMMMMM