Based on "Tester" by Ingwe Ingweron on DL38 as posted at http://angband.oook.cz/forum/showpost.php?p=101664&postcount=201

I grabbed that file, played for a couple turns with a version of the game that I sadly cannot recall exactly, then exited.

The resulting save causes angband-win-v4.0beta-260-g6dc5445 (and possibly other versions) to fail the following assertion:

	File: load.c
	Line: 297

	Expression: square_obj

Afterwards the game complains:

	Cannot place monster 5
	Savefile corrupted - Couldn't load block mosnters

- tumbleweed