Author of the idea: Yuri, author of the mq5 code: barabashkakvn.
The strategy uses three main Bollinger Bands indicators: red for “Bollinger Bands: number of standard deviations” specified in parameters, yellow for “Bollinger Bands: number of standard deviations” * 2.0 and blue for “Bollinger Bands: number of standard deviations” / 2.0:
Optimization was performed for EURUSD,H1 at the interval from 2017.06.06 to 2017.11.20. The result of a single run in the strategy tester at the interval from 2017.01.06 to 2017.11.20:
The following parameters were used: