TwT: This tsumego has a refernce to: https://tsumego-hero.com/tsumegos/play/21658, https://tsumego-hero.com/tsumegos/play/23093, https://tsumego-hero.com/tsumegos/play/23092
caranthir: Looks like the position in Xuanxuan Qijing is a mirror image of this, so it doesn't show up in duplicate search. Only the Gokyo Shumyo 75 and 1000 Weiqi problem positions are the exact same with no mirror transformation.
Noir: [current position] I think this A5 move doesn't work (shouldn't be green). After D6, A2, A3 connect wouldn't be played! Instead something like F2 would.
I do not think so: S2 Q1 T3 R1 T1 P1.