Grid chess
{'<entity_0>': 'chess variant', '<entity_1>': 'Grid chess', '<entity_2>': 'chess'}
[['Grid chess', 'instance of', 'chess variant'], ['Grid chess', 'sport', 'chess']]
<entity_1> is a <entity_0> invented by Walter Stead in 1953. <entity_1> is also used in <entity_2> problems. It is possible to play entire games under <entity_1> conditions, and a number of <entity_2> problems using <entity_1> rules have also been composed.
['chess variant']