่ๆฐดไธๆฐ (Japanese: ่ๆฐดใฎ้ฃ) are idioms that come from Han Xin leading his men at Jingxing so they would have their back to the river and unable to retreat. See and compare ๆญปๅฐๅๆ from Sun Tzu's ไนๅฐ็ฏ, often translated as "on death ground, fight".