There's two modes to this: Auto Player and Manual Helper. Auto Player mode automatically plays the game without any input needed. It will stop at when you reach 10/10 games. Play as normal in Manual Helper mode, except it allows you to see the tile after it has been clicked (so you don't need to memorise it).
Useful for the 'If Memory Serves Me Correctly' (Win games of Memory) achievements.
The Manual Helper mode is for the 'You Must Have X-Ray Vision' achievement, but you need to make multiple tries. Alternatively:
Subeta counts 2 moves as 1 'guess'. So just make 1 move, remember what it is, refresh (or open Memory in a new window), and the 'guess' amount will stay at 0.