Solved by hegnut

#	Title	# Solved	Avg. Tries
15652	N과 M (4) STANDARD	41,989	1.27
15651	N과 M (3) STANDARD	40,635	1.50
15650	N과 M (2) STANDARD	49,893	1.35
15649	N과 M (1) STANDARD	53,338	1.58
14888	연산자 끼워넣기	37,161	2.12
9663	N-Queen	41,874	2.14
1966	Printer Queue	41,157	1.70
1759	Securing the Barn	28,782	2.22

1