Roulette table

A straight-up win with 15 chips yields 525 profit, reaching the 1500 target. With 9 spins, the cumulative probability of hitting at least once is about 21.4%; smaller stakes conserve bankroll for all 9 attempts.

With 8 spins left and needing 515 to reach 1500, betting 100 on each of two straight-up numbers gives a 35.1% chance of hitting at least once in the remaining spins, instantly exceeding the target.

With 6 spins left and needing +715, only high-payout straight-up bets offer a realistic chance; placing max 100 on two different numbers gives 2/38 chance per spin of a 3400 profit, and I will skip remaining spins if I hit the target to lock in the win.

Need to reach 1500 from 585 in 5 spins; maximum variance with two straight-up bets of 100 each gives best chance to hit target with one win.

Starting with 385, need ~1115 gain. A straight win on 33+ chips reaches 1500. This 33-chip bet leaves 352 if lost, allowing a 200 two-number bet next and a 152 two-number bet after that, maximizing success probability within remaining spins.

Need to reach 1500 from 352 in two spins. Betting 34 on a straight-up gives 34*35=1190 profit on win, reaching 352+1190=1542>1500. If lose, 318 remaining, next spin bet 35 on straight-up to hit 1500+.

With only 318 chips and one spin left, only a straight-up bet can reach the 1500 target. Betting two different numbers maximises the hit probability while each win still yields 3600 chips, far exceeding the goal.