The century was Dhoni's third in Test cricket, a score which puts his side in an unassailable position with two days remaining at the Brabourne Stadium.

BBC: Dhoni leads India to record score

Despite the loss -- just their second in the league this season -- Barca are still way out ahead of on 68 points, but not in an unassailable position just yet, as the match winner Ramos pointed out.

CNN: Ramos heads Real to victory against Barcelona

In the fashion industry, notoriously marked with changing tastes and short lived brand appeal, Polo seems to have an unassailable competitive position.

FORBES: Polo Ralph Lauren Still A Pony With Pep In Its Step

But unfortunately, what looked like an unassailable market position in 1984 diminished dramatically as not only homeowners but corporations started shifting to new offerings from competitors.

FORBES: The Myth of "Maturity" - The AT&T story and Microsoft concerns

When he returned to the cabinet as its second-ranking member his position looked unassailable.

ECONOMIST: The humbling of Chubais | The

Putin was arguably the single most popular politician in the world, and his position appeared completely unassailable.

FORBES: Vladimir Putin's Approval Rating Just Hit An All-Time Low

Hashimoto's position in his own party seems unassailable -- for the moment.

CNN: NEW EYE OF THE STORM