Solving Script
Hell 8

Hidden single 7 in row 2  (r2c8=7)
   r2c8<>2
   r2c8<>3
   r2c8<>9
Hidden single 2 in row 2  (r2c1=2)
   r2c1<>1
   r2c1<>3
   r2c1<>4
   r2c1<>9
   r3c1<>2
Hidden single 2 in row 3  (r3c7=2)
   r3c7<>9
   r5c7<>2
   r8c7<>2
Hidden single 2 in row 5  (r5c4=2)
   r5c4<>1
   r5c4<>4
   r5c4<>7
   r6c4<>2
   r7c4<>2
Hidden single 7 in col 6  (r8c6=7)
   r8c1<>7
   r8c6<>1
   r8c6<>2
   r8c6<>5
   r9c4<>7
Hidden single 7 in row 9  (r9c1=7)
   r5c1<>7
   r9c1<>1
   r9c1<>6
   r9c1<>9
Hidden single 7 in row 5  (r5c3=7)
   r5c3<>1
   r5c3<>4
   r5c3<>8
   r6c3<>7
Hidden single 7 in row 6  (r6c4=7)
   r6c4<>1
   r6c4<>4
Hidden single 2 in col 6  (r7c6=2)
   r7c6<>1
   r7c6<>5
   r7c8<>2
   r7c9<>2
Hidden single 3 in box 3  (r1c9=3)
   r1c1<>3
   r1c4<>3
   r7c9<>3
   r9c9<>3
Hidden single 9 in box 3  (r1c7=9)
   r1c1<>9
   r1c3<>9
   r1c6<>9
   r9c7<>9
Naked single 5 row 1 column 6  (r1c6=5)
   r1c3<>5
   r1c4<>5
   r3c4<>5
   r3c6<>5
Naked single 4 row 4 column 8  (r4c8=4)
   r4c1<>4
   r4c3<>4
   r4c4<>4
   r4c5<>4
   r5c7<>4
   r6c8<>4
   r8c8<>4
Hidden single 4 in row 8  (r8c7=4)
   r8c7<>1
   r8c7<>8
Naked single 2 row 6 column 8  (r6c8=2)
   r6c9<>2
   r8c8<>2
Hidden single 2 in row 8  (r8c9=2)
   r8c9<>1
   r8c9<>5
   r8c9<>8
Hidden single 8 in row 8  (r8c5=8)
   r2c5<>8
   r8c5<>1
   r8c5<>5
   r8c5<>6
   r9c4<>8
   r9c5<>8
Hidden single 5 in row 8  (r8c2=5)
   r3c2<>5
   r7c3<>5
   r8c2<>1
   r8c2<>6
   r9c2<>5
Hidden single 5 in row 3  (r3c3=5)
   r3c3<>1
   r3c3<>6
   r3c3<>9
Hidden single 1 in row 8  (r8c1=1)
   r3c1<>1
   r4c1<>1
   r5c1<>1
   r7c3<>1
   r8c1<>6
   r9c2<>1
Hidden single 6 in row 8  (r8c8=6)
   r7c8<>6
   r9c8<>6
Naked double box 2 - 19
   r2c4<>1
   r2c5<>1
   r2c5<>9
   r3c4<>1
Hidden double col 4 - 48
   r1c4<>6
   r2c4<>3
   r2c5<>4
Hidden single 6 in box 2  (r3c4=6)
   r3c1<>6
   r3c2<>6
   r3c4<>3
   r7c4<>6
   r9c4<>6
Hidden single 6 in col 2  (r9c2=6)
   r7c3<>6
   r9c2<>9
   r9c5<>6
Hidden single 6 in row 7  (r7c5=6)
   r7c5<>1
   r7c5<>3
   r7c5<>5
Hidden single 9 in row 9  (r9c8=9)
   r7c8<>9
   r9c8<>3
Hidden single 9 in row 7  (r7c3=9)
   r2c3<>9
   r4c3<>9
   r6c3<>9
Hidden single 3 in col 8  (r7c8=3)
   r7c4<>3
Hidden single 3 in col 4  (r9c4=3)
   r9c4<>1
   r9c4<>5
   r9c5<>3
Hidden single 3 in col 5  (r2c5=3)
   r2c2<>3
XY-Chain 55 43 digit = 1
   r4c4<>1
   r4c5<>1
   r5c2<>1
Hidden single 1 in row 4  (r4c3=1)
   r2c3<>1
   r4c3<>6
   r6c2<>1
   r6c3<>1
Hidden single 6 in row 4  (r4c1=6)
   r1c1<>6
   r4c1<>9
Hidden single 6 in row 1  (r1c3=6)
   r1c3<>4
   r1c3<>8
Hidden single 8 in row 1  (r1c4=8)
   r1c4<>4
   r2c4<>8
Hidden single 4 in row 1  (r1c1=4)
   r2c3<>4
   r5c1<>4
Hidden single 4 in row 2  (r2c4=4)
Hidden single 9 in row 4  (r4c5=9)
   r4c5<>5
   r6c5<>9
Hidden single 5 in row 4  (r4c4=5)
   r7c4<>5
Hidden single 4 in row 5  (r5c5=4)
   r5c5<>1
   r6c5<>4
Hidden single 1 in row 5  (r5c7=1)
   r5c7<>8
   r6c9<>1
   r9c7<>1
Hidden single 8 in row 5  (r5c2=8)
   r2c2<>8
   r5c2<>3
   r6c2<>8
   r6c3<>8
Hidden single 8 in row 2  (r2c3=8)
Hidden single 3 in row 5  (r5c1=3)
   r3c1<>3
Hidden single 3 in row 3  (r3c2=3)
   r3c2<>1
   r3c2<>9
Hidden single 1 in row 3  (r3c6=1)
   r2c6<>1
   r3c6<>9
Hidden single 1 in row 2  (r2c2=1)
   r2c2<>9
Hidden single 9 in row 2  (r2c6=9)
Hidden single 9 in row 3  (r3c1=9)
Hidden single 1 in row 6  (r6c5=1)
   r9c5<>1
Hidden single 4 in row 6  (r6c3=4)
Hidden single 8 in row 6  (r6c9=8)
   r9c9<>8
Hidden single 9 in row 6  (r6c2=9)
Hidden single 5 in row 7  (r7c9=5)
   r7c9<>1
   r9c9<>5
Hidden single 1 in row 7  (r7c4=1)
Hidden single 1 in row 9  (r9c9=1)
Hidden single 5 in row 9  (r9c5=5)
Hidden single 8 in row 9  (r9c7=8)

Done!