Roulette table

A straight-up win is the only bet that can reach the 1500 target in one spin; staking 15 is the minimum whose 35:1 profit reaches the target while preserving bankroll for repeated attempts over the remaining spins.

Bankroll 985 needs 515 to reach 1500; a 15-chip straight-up bet is the smallest single bet whose 35:1 win reaches the target immediately, preserving bankroll for repeated attempts over 19 spins.

A straight-up win is the only single bet that can reach 1500 from 970; 16 is the minimum stake whose 35:1 profit closes the 530 gap, preserving bankroll for repeated attempts if it misses.

Need 546 to reach 1500; 17 on each of two straight numbers nets 578 on a hit, reaching the target, while keeping total stake low enough to preserve bankroll for many repeat attempts.

Need 580 more; a straight-up win pays 35:1, so 17 is the smallest stake whose win (595) reaches 1500, preserving bankroll for repeated attempts over the remaining 16 spins.

Covering five straight numbers with 20 each gives a 5/38 chance of a net +620 profit, enough to reach 1523, while preserving bankroll for repeated attempts if it misses.

Bankroll 803 needs 697 to reach 1500; a 20-chip straight-up win pays 700, exactly reaching the target while minimizing stake lost on misses and preserving many remaining trials.

Bankroll 783 needs 717 to reach 1500 in 13 spins; a 21-chip straight-up win pays 735 and reaches the target immediately, while the minimal reaching stake preserves bankroll after losses for repeated attempts.

A straight-up win is the only single bet that can reach 1500 immediately; 22 is the minimum stake whose 35:1 profit covers the 738 shortfall, preserving bankroll for repeated attempts over the remaining spins.

Bankroll 740 needs 760 to reach 1500 in 11 spins; a 22-chip straight-up bet is the smallest stake whose 35:1 win reaches the target, preserving bankroll for repeated attempts.

Covering 3 numbers at 24 each costs 72 but a hit nets 792, reaching 1510, while preserving bankroll for repeated attempts over the remaining 10 spins.

With 646 and 9 spins left, a 25-chip straight-up win pays 875 for a net reach to 1521; this sized-to-target longshot can be repeated with slightly larger stakes, giving far higher target probability than even-money or dozen bets capped at 100.

Covering four straight numbers at 28 each gives a 4/38 chance to gain 896 and reach 1517 immediately, while a miss leaves 509 with seven spins to escalate similarly.

Bankroll 509 needs 991 in 7 spins; a 29-chip straight-up win pays 1015 to reach 1524, and the minimal sufficient stake preserves bankroll for repeated attempts if it misses.

Bankroll 480 needs 1020 in 6 spins; even-money cannot reach and dozen would need near-perfect wins. A 30-chip straight-up win pays 1050 to reach 1500, giving a 1/38 finish chance each spin while preserving bankroll for repeated attempts.

Need 1050 more in 5 spins; a straight-up win at 35:1 requires only 30 to reach exactly 1500, maximizing survival after misses while keeping a one-hit success path.

With 420 chips and 4 spins left, betting 35 on each of five numbers reaches 1505 if any hits while preserving 245 chips for further attempts if it misses.

With 245 chips and 3 spins left, only straight-up wins can reach 1500 immediately. Covering four numbers at the minimum 40 each reaches 1525 on any hit while preserving 85 chips for another attempt if all miss.

With 85 chips and two spins left, only a straight-up hit can reach 1500; staking 42 on each of two numbers gives a 2/38 chance to finish at 1513 or more on this spin, maximizing the immediate reach probability.

Last spin with bankroll 1, target is unreachable, but success-only scoring makes a straight-up bet the maximum-upside play with no downside.