This roulette system is fairly efficient and at the same time relatively sparing to your capital, the game is more or less calm, usually without larger twists.
If you examine the roulette board, you will see that:
If we bet on the red, we'll cover 18 numbers, and if we simultaneously also bet on the middle column, we'll cover an additional 8 black numbers. In this bet, you cover 26 numbers and only leave 10 numbers uncovered plus the zero, i.e., 11 in total.
Place 3 chips on the red and 2 chips on the middle column. If the winning number is a red number from the first or the third column, you win 3 chips for red and lose 2 chips on the middle column. So in total you won 1 chip.
Bet 3 chips on the 19-36 area and 2 chips on the first dozen (1-12), which allows you to cover all numbers except for 13-18. As long as the ball lands on any number outside of 13-18, you win 1 chip.