Lith looked at Arya with a smile on his face. He knew she definitely was in a tense state right now and there's no way that she can make her next move without losing either the rook or the queen.
Arya turned her gaze to meet Lith's and doing so, she saw his smile. She smiled back at him and said, "instead of feeling happy for making one good move, analyze the game and see what would happen next. Run mental simulations."
Lith's smile faded, and he nodded his head in agreement. Before he could run a mental simulation, Arya made her move by moving her king out of the check he had given her. Lith then considered his next move, as well as the one after that, to checkmate Arya.
Running a few simulations in his mind, he found the best course of action was to capture her rook with his knight first, and he did just that.
Noticing this, Arya looked at Lith and extended her hand forward to flick his forehead.
"Oww."