Roulette table

Need +500 in 20 spins on a negative-edge wheel, so a high-variance bold play is best: three straight-ups at 16 each net +528 on any hit (3/38 per spin) while costing only 48 per miss, leaving ~13 attempts and roughly a 63% overall chance of reaching 1500, better than even-money grinding or a single number.

Need +548 in 19 spins with a 200/spin cap, so I want high-variance outside coverage without the fast bust risk of straight-ups; a dozen plus a column at 100 each gives a 4-number overlap paying +400, 16 numbers paying +100, and keeps the bankroll alive for many spins.

Bold-play style: cover 11 numbers at 18 each (198 total) so any hit nets +450 and reaches the 1500 target in one spin (1052+630-180=1502), giving ~29% success this spin while keeping enough bankroll to repeat scaled-up attempts if it misses.

Need +646 in 17 spins; even-money grinding gives only ~12% chance, while a straight-up hit of 20 nets 660 and reaches the target in one go. Betting three numbers at 20 keeps the stake affordable so this can be repeated with escalating stakes for roughly 10 more spins, giving ~55% cumulative chance of hitting.

Need +706 with 16 spins left; even-money grinding is unlikely to net 4 wins, so bold play via straight-ups is best. Stake 21 on two numbers: a hit yields 735 profit minus the 21 lost, landing at 1508 (target met), while keeping enough bankroll to repeat this for ~13 spins (~50% cumulative hit chance).

Need +748 with 15 spins left; even-money grinding is unlikely to net 4 wins, so I bet three straight-ups sized so a single hit (23*33=759 net) clears 1500 immediately while preserving bankroll for several more attempts.

Need +817 with 14 spins; even-money grinding is hopeless, so I cover 6 straight-ups at 28 each: a hit yields 683-168+36*28=1523, clearing the target, while the stake schedule preserves enough bankroll for several more attempts (~43% overall hit chance).

Need +985 in 13 spins with 515 chips; even-money/dozen grinding is unlikely, so cover six straight-up numbers at 33 each (any hit lifts bankroll to 1505, reaching target) to maximize number-spin trials per chip while deficit is still cheap to cover.

Need +1183 with 317 chips and 12 spins; only a straight-up hit can get there. Betting the minimum stake (34) that reaches 1500 on a win maximizes the number of 1/38 attempts (about 8), which is the best use of the remaining bankroll.

With 283 chips and a 1500 target, only straight-up hits can get there; five numbers at 40 each (max 200) reaches 1523 on a hit (5/38), leaving 83 for one more 41-chip straight-up try if it misses, which maximizes the probability of hitting the target.

With 83 chips and target 1500, only a straight-up hit can reach it; staking 41 wins to 1518 while keeping 42 in reserve for a second all-in straight-up shot (42*36=1512) if this one misses, doubling the number of chances versus going all-in now.

With 42 chips and 9 spins left, only a straight-up hit can reach 1500; staking all 42 on one number returns 42*36 = 1512, which clears the target in a single win, and smaller or spread bets cannot get there as efficiently.

Bankroll of 1512 already exceeds the 1500 target and only finishing above it matters, so skipping all remaining spins locks in success with zero risk.

Bankroll is already 1512, above the 1500 target; since only reaching the target counts and skipping is allowed, the optimal action is to place no bets and lock in success.

Bankroll of 1512 already exceeds the 1500 target, so skipping all remaining spins locks in success with zero risk.

Bankroll is 1512, already above the 1500 target; since only reaching the target counts, skipping all remaining spins locks in success with zero risk.

Bankroll is 1512, already above the 1500 target with only reaching it mattering; any bet risks dropping below, so skipping (no bet) locks in success.

Bankroll is already 1512, above the 1500 target, so skipping preserves success with certainty; any bet only risks dropping below the target.

Bankroll of 1512 already exceeds the 1500 target with two spins left; any bet risks dropping below the target, so skipping is optimal.

Bankroll is 1512, already above the 1500 target with one spin left; any bet risks dropping below target, so skipping locks in success.