Không rõ —
Qiyi Arranged Problems #61
Qiyi Middlegame Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot
Qiyi Middlegame Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot
Qiyi Middlegame Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot
Qiyi Middlegame Study · Central cannon vs left three-step tiger to opposite cannons — red left direct chariot