Top 10 hardest
№ 6903541
Givens: 21 · Difficulty: 17199
№ 6903956
Givens: 19 · Difficulty: 15566
№ 6905135
Givens: 19 · Difficulty: 14570
№ 6900935
Givens: 22 · Difficulty: 13070
№ 6900241
Givens: 19 · Difficulty: 12709
№ 6903693
Givens: 20 · Difficulty: 11703
№ 6899713
Givens: 21 · Difficulty: 11105
№ 6912879
Givens: 21 · Difficulty: 11049
№ 6909833
Givens: 20 · Difficulty: 10568
№ 6911141
Givens: 21 · Difficulty: 10226