Guys I think we are missing the point. Here are the facts:
1)Markets open at 21.00 GMT.
2) Challenges strategy requires to enter at the first 15 candle on EUR/USD after the gap when the market opens at Sunday 21.00 GMT.
3) No broker at least according to the resaerch I did has EUR/USD or any other pair available at that specific time.
4) We all need to focus our research to find a broker who will be having EUR/USD or any other pair open exacly at market opening, which I repeat is at 21.00 GMT.
Otherwise the strategy is useless...