Fiat: Diceless Roleplaying Compact (2007)

from the website:

... I wasn't enthralled with some of the particulars of [the Amber Diceless] system (such as the fact that the outcome of all conflicts is clearly determined even before they begin).

To get around this aspect of pre-determined outcome a system of token spending has been implimented in Fiat. Token systems are nothing groundbreaking in RPGs. Similar things have been used before to help skew the odds of a given outcome in games using dice. But in Fiat spending tokens doesn't simply provide a greater chance of success at a given action, it causes events in general to unfold in a more unlikely (and hopefully more impressive or interesting) way that the player intends.

So while the outcome of a conflict is no longer pre-determined neither is it left to chance. Whatever happens at least one of the conflict participants will end up having the narrative unfold as they prefer.

These rules are available as a free download.