She dances with his movements, sacrificing pieces where needed, to punch holes in his attacks; while the trades might not be the best, they certainly do a number on his offensive capability, sacrificing some of her defenses to keep her offense strong, pressuring his defenses as well. She smiles, softly, as he announces the time limit; she hadn't been dithering, before, and she, too, seems to step up her skill to match his, their battlefield looking almost like a Yin-Yang symbol, before long, as she presses into his defenses, using her own to blunt his attack.