ナンプレ解法
Very Easy 非常に容易
Full House in block, row or column
Hidden Single in block
Easy 容易
Full House in extra region
Hidden Single in row or column
Moderate 中くらい
Hidden Single in extra region
Naked Single
Advanced アドバンス
Locked Candidates: Pointing
Locked Candidates: Claiming
Hard 難しい
Locked Candidates: Claiming in extra regions
Naked Pair
X-Wing
Hidden Pair
Finned X-Wing
Sashimi X-Wing
Very Hard 非常に難しい
Hidden Pair in extra region
Naked Triple
Swordfish
Hidden Triple
Finned Swordfish
Sashimi Swordfish
Hidden Triple in extra region
XY-Wing
XYZ-Wing
W-Wing
Fiendish 極めて困難
Nightmare 悪夢