so, as quantium_cat quite logically noted in the comments to the post
if the prices of the previous close for RTS futures coincide with the prices of the next opening of the session, then, due to the inability to trade at the opening prices, the prices of the previous close can be applied. That is, open a position a few seconds / minutes before the close of the session.
Therefore, we will start virtual trading on the grail built on a trained neuro-indicator to make sure that there is no trick on its part., see what happens in the process. Today, just at the close of the session, the indicator gives a signal to enter a long position.
IN 23:54 bought 1 futures contract on the RTS index 133 500, как показывает schedule на этот момент.