Look here. There is no better authority on gambling than Wizard of Odds.
http://wizardofodds.com/gambling/betting-systems/challenge/
"bet of at least 1 unit must be placed on every trial"
Why the hell he did not write "you can skip as many trials as you want"? Why his condition includes betting on every trial? Huh?
Because he knows that hit-n-run may work, that's why.
https://en.wikipedia.org/wiki/Michael_Shackleford
http://wizardofodds.com/gambling/betting-systems/challenge/
"bet of at least 1 unit must be placed on every trial"
Why the hell he did not write "you can skip as many trials as you want"? Why his condition includes betting on every trial? Huh?
Because he knows that hit-n-run may work, that's why.
https://en.wikipedia.org/wiki/Michael_Shackleford