Sentence examples for gruelling difficulty from inspiring English sources

The genre has entered something of a renaissance recently, largely due to the influence of break-out hit Spelunky, and it can be hard to find an indie game without some mixture of randomly generated levels, copious item pick-ups, and a gruelling difficulty level.

The fall of life's dice (he's fought gruelling mental difficulties all his adult life) has made Harrell a withdrawn man, but his music sparkles and dances with optimism and warmth – more so in his late 60s, it seems, than at any time in a career that has seen him constantly record, write for all kinds of jazz ensembles, and invite comparisons with some of the most famous names in music.

The training was gruelling.

Interviewing Campbell is gruelling.

Scrutiny can be gruelling.

The work was gruelling.

It was quite gruelling.

Factory conditions can be gruelling.

"The month is gruelling.

It's gruelling".

Not gruelling, no.