--- /dev/null
+../lib/mnit_linux/linux_app.nit:28,16--31: Redef Error: a virtual type cannot be refined.
+../lib/mnit_linux/linux_app.nit:29,16--29: Redef Error: a virtual type cannot be refined.
--- /dev/null
+../lib/mnit_linux/linux_app.nit:28,16--31: Redef Error: a virtual type cannot be refined.
+../lib/mnit_linux/linux_app.nit:29,16--29: Redef Error: a virtual type cannot be refined.
--- /dev/null
+Usage: puzzle [--configs] initial...
+
+--configs: search and time solutions with various configurations of solvers.
+initial: an initial configuration (letters for the tiles, and dot for the hole). eg:
+
+ 8-puzzle:
+
+ goal (0): abcdefgh.
+ easy (4): abce.fdgh
+ medium (10): eabf.cdgh
+ hard (20): feacbh.dg
+ harder (31): hfgbedc.a
+
+ 15-puzzle:
+ goal (0): abcdefghijklmno.
+ easy (30): bacdefghijlkmno.
+ medium (40): fg.jacoheldnibmk
+ hard (55): kleg.mondcafjhbi
+ harder (61): lomgkcend.afjhbi
+
+ 24-puzzle:
+ goal (0): abcdefghijklmnopqrstuvwx.
+ easy (55): giabcjekmdhrtflqsownpuv.x
+ medium (75): giabcjekmdrtwulhs.vnqofpx
+ hard (79): giabcjekmdrtw.uhsvnlqofpx
+ harder (80): giabcjekmdrt.wuhsvnlqofpx
+