I'm inclined to say "no" because because each of the following could be considered lucky:
- A finesse can be tried 2 different ways and your partnership selects the one that works
- You play a routine, obvious hand against the strongest partnership of the match
- You play a challenging hand against the weakest partnership of the match
- You play a hand that better maps to your bidding system than that of the other partnerships playing the same hand
- You purposely pursue a poor risk/reward chance at an overtrick and make it, earning top score, in order to avoid an average result
But in discussing this a few minutes ago, I got to wondering what if you controlled for most of these things - assume 2 human partners playing a Duplicate Bridge (standard Matchpoints) tournament against a bunch of expertly programmed robot bridge players, all at the same level, all using the same bidding system.
In these more controlled circumstances, would Duplicate Bridge be a game of pure skill?