The author of the idea: Collector, the author of the MQL5 code: barabashkakvn.
The rules of the trading system are as follows:
Lot is calculated automatically based on the risk value as a percentage of free margin.
Condition to open a Sell position:

Example for SAR RSI MTS 2017.06.08 - 2017.10.26 GBPUSD,M30:

Tradotto dal russo da MetaQuotes Ltd.
Codice originale https://www.mql5.com/ru/code/19940
Ambush
The Expert Advisor uses Buy Stop and Sell Stop orders to trade news and large price movements.
RndTrade
Opening positions randomly after a certain time interval.
EMA Cross Contest Hedged
A trading system based on three indicators: two iMAs (Moving Average) and iMACD (Moving Average Convergence/Divergence, MACD).
AO_Divergence
The indicator searches for divergences and displays them on the chart of the custom AO indicator.