『2016年06月02日のつぶやき』Nothing Upstairs|nothingupstairs.sblo.jp/article/175542…
I solved this Nightmare level #Sudoku puzzle in 8:20 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/STIcy7Eb9U
I solved this Nightmare level #Sudoku puzzle in 5:04 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/LcP677CX4c
I solved this Nightmare level #Sudoku puzzle in 16:17 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/UQp99eT4iw
I solved this Nightmare level #Sudoku puzzle in 15:48 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/N5ob18K6uD
I solved this Nightmare level #Sudoku puzzle in 11:26 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/Vv0P8UR09E
I solved this Nightmare level #Sudoku puzzle in 6:07 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/S8RlWnExjk
I solved this Nightmare level #Sudoku puzzle in 8:52 using autopencil and not hints! EnjoySudoku.com pic.twitter.com/pnOz6WEvLp