No, you cannot withdraw the gains obtained in the test account, known as the Challenge Account, at Ylos Trading. The Challenge Account is an evaluation phase where you demonstrate your trading skills with virtual, not real, capital to prove you can trade profitably and disciplined according to Ylos's rules. The gains you achieve in this account are only part of a virtual balance, a simulation to test your strategies, and do not represent money that can be withdrawn. To withdraw profits, you need to transition to a Master Account after meeting the Challenge Account criteria.