Thor Annual (1966) #9
The usually brawny Thor must exercise intellect and restraint when Umar manipulates him into playing a game of chess with Dormammu! Should either side win, Asgard will be plunged into hellfire!
Stories
writer
Chris Claremont
letterer
Jim Novak
penciler
Al Milgrom
letterer
Janice Chiang
penciler
Luke Mcdonnell
Cover Information
cover artist
Vince Colletta