Here is a simple idea :
If the absolute difference between the previous close and the previous open is "Factor" times higher than the difference between the second previous close and the second previous open, then :
We look if the open of the previous bar is higher than the open of the second previous bar.
If it is the case, we buy.
Otherwise we sell.
EU H1. On one year.
Total net profit : 99.94%
RDD : 25.93%
The strategy tester statement is too big to be attached.