Shauna System Explained
The system is actually quite simple, as it tells you which outcomes you need to place a bet on and even sets the bet amounts. Once you start, you don't need to change the stake (or bet types). Basically, it works like this:
- Start playing with 66 units. This number can be 666 or 6,666, the important thing is that it is evenly divided.
- Place 36 units on one of the even money bets.
- Distribute the remaining money evenly on the roulette table. When you're done, there should be only 4 numbers left that you didn't cover.
- If you win any bet, you will make a profit of 6 units (after deducting all other bets you lost).
To increase the chances of the system working, you should opt for single zero roulette variants (European - French). Let's take a practical example of the Shauna strategy and start with a bankroll of 66 units.
- We place a bet of 36 units on "Red".
- We place 4 units for the following split bets: 0 and 2, 8 and 11, 10 and 13, 17 and 20, 26 and 29, 28 and 31. In total, we placed 6 split bets, and each one was worth 4 units, so 6 x 4 = 24 units.
- Finally, we place another 2 units bet on three randomly selected numbers; 2 x 3 = 6 units in total. You can freely choose from the remaining numbers, but for maximum coverage at the sectoral level, we recommend choosing from the following group: 4, 6, 15, 22, 24, 33, 35.
In the image below, you can see what the bet distribution in this example will look like. That's all: you can start playing now, and once you start, you don’t need to change anything.

Testing the Shauna System
To see how the system would work, we created a simulation of 500 spins and used 4 players. Each of them started playing with a bankroll of 1,000 units. You can see in the image below what results they achieved using the Shaun system both in the short and long term.

Let's analyze this graph:
- None of the players finished the simulation with a profit. Player 3 went bankrupt, while the others lost most of their bankroll.
- In very short intervals, some players (1 and 4) were able to make a profit, but it didn't last long.
- Win/loss streaks were very volatile: the general trend was towards loss, but no player was able to achieve stable gameplay.
Simply put, the simulation results show that despite the impressive winning chances, the Shaun system doesn't work and can even be as destructive as progressive betting strategies.
Problems of the Shaun System
The main problem with the system is that if you lose, you lose a huge chunk of your bankroll. You place at least 66 units each round and if the result is one of the 4 numbers you didn't cover, you lose 66 units. Losing several times in a row at the beginning of a game session can bankrupt you pretty fast.
However, even if you start with a win streak, the risk is still there because the payout potential of the system is not very high and a losing streak at any time can still cause you to go bankrupt. The Shaun system does not provide a solution to recover losses quickly. For example, Martingale is a high-risk system, but it offers you the chance to win back your lost money with a single spin. In the Shaun system, there is no such possibility: if you lose, it will take you a very long time to recover.
Conclusion
The winning chances offered by the Shaun system may seem impressive, but what you're actually doing is risking 66 units to make a 6 units profit. To recover even a single loss would require you to win 11 rounds in a row. That's why none of the players in our simulation were able to recover their losses and even when they did win, they didn't make a significant profit. You can consider using it for very short sessions, but Shaun system will not provide any benefit in the medium and long term and will most likely even bankrupt you.