greenibex wrote:
are we talking about beating someone at chess or
something else like russian roulette?
Chess. Russian roulette odds are just 1/6, yes?
yes
but a 1300 rated player at russian roulette probably gets the bullet more times than the 2700 rated russian roulette player.
so to answer the question, then i would say a 1300 rated could not beat a 2700 player because the person would get the bullet more times. and thus not be able to survive as long as the 2700 player
If a 1300 player wants a chance of occasionally beating a 2700 player in a real competitive game then they need to improve their chess to somewhere around the 2400 level ! It is a bit like someone that runs 10,000 metres in about 1 hour planning to beat Mo Farrar in a race (or any other International 10k runner, as they can all run comfortably well below 30 minutes without trying very hard).
For the average person going from 1300 to 2400 strength would take something like 10 to 15 years of sustained study for several hours on most days, and lots of practice in competitive play ... with the possibility (or rather ... probability ... when you consider how many of us play chess, and how few of us become masters) that they will never reach their goal.
A good teacher or mentor improves the prospects ... especially if you find one before developing lots of misconceptions about chess and bad habits of thought.