Solving Script
HELL 28

Hidden single 5 in col 9  (r1c9=5)
   r1c1<>5
   r1c2<>5
   r1c3<>5
   r1c5<>5
   r1c6<>5
   r1c9<>4
   r1c9<>6
   r1c9<>8
Hidden single 6 in row 1  (r1c7=6)
   r1c7<>4
   r1c7<>8
   r1c7<>9
   r4c7<>6
   r5c7<>6
   r6c7<>6
   r7c7<>6
   r9c7<>6
Hidden single 5 in col 6  (r2c6=5)
   r2c1<>5
   r2c2<>5
   r2c5<>5
   r2c6<>3
   r2c6<>7
   r2c6<>8
   r3c5<>5
Hidden single 5 in col 2  (r7c2=5)
   r7c2<>6
   r7c2<>9
   r7c3<>5
   r7c5<>5
   r9c1<>5
   r9c3<>5
Hidden single 5 in row 9  (r9c5=5)
   r9c5<>2
   r9c5<>6
   r9c5<>8
Hidden single 4 in box 3  (r2c7=4)
   r2c1<>4
   r2c7<>8
   r2c7<>9
   r4c7<>4
   r5c7<>4
   r6c7<>4
   r9c7<>4
Hidden single 6 in box 7  (r9c1=6)
   r4c1<>6
   r5c1<>6
   r6c1<>6
   r9c1<>1
   r9c1<>3
   r9c4<>6
   r9c8<>6
   r9c9<>6
Naked single 3 row 6 column 6  (r6c6=3)
   r4c6<>3
   r5c5<>3
   r6c1<>3
   r6c3<>3
   r6c5<>3
   r6c7<>3
   r6c9<>3
Naked single 8 row 4 column 6  (r4c6=8)
   r1c6<>8
   r4c4<>8
   r4c7<>8
   r4c9<>8
   r5c5<>8
Naked double row 3 - 89
   r3c1<>9
   r3c3<>8
   r3c3<>9
   r3c5<>8
   r3c5<>9
Hidden single 8 in col 3  (r1c3=8)
   r1c3<>2
   r1c3<>4
   r1c3<>7
   r1c3<>9
   r1c4<>8
   r1c5<>8
Hidden single 4 in row 1  (r1c1=4)
   r1c1<>7
   r1c1<>9
   r4c1<>4
   r5c1<>4
   r6c1<>4
Hidden single 7 in box 1  (r2c1=7)
   r2c1<>3
   r2c1<>9
   r2c5<>7
   r4c1<>7
   r5c1<>7
Naked Triplets 139 in column 3
   r3c3<>3
   r4c3<>3
   r4c3<>9
   r5c3<>1
   r5c3<>3
   r6c3<>1
   r6c3<>9
Locked candidate (9) in box 1
   r4c2<>9
Locked candidate (8) in col 9
   r7c7<>8
   r7c8<>8
   r9c7<>8
   r9c8<>8
XY Wing 44 - 52 num = 6
   r4c2<>6
   r5c5<>6
Hidden single 6 in col 2  (r5c2=6)
   r5c2<>3
   r5c8<>6
Naked single 4 row 5 column 5  (r5c5=4)
   r5c3<>4
   r5c8<>4
   r6c5<>4
Naked single 7 row 5 column 3  (r5c3=7)
   r4c3<>7
   r5c7<>7
   r5c8<>7
Hidden single 7 in row 4  (r4c7=7)
   r4c7<>2
   r4c7<>3
   r7c7<>7
Naked single 8 row 5 column 8  (r5c8=8)
   r3c8<>8
   r5c7<>8
Hidden single 8 in row 3  (r3c7=8)
   r3c7<>9
Hidden single 9 in row 3  (r3c8=9)
   r7c8<>9
   r8c8<>9
Hidden single 9 in row 8  (r8c3=9)
   r7c3<>9
   r8c3<>1
   r8c3<>3
Hidden single 9 in row 7  (r7c7=9)
   r7c7<>1
Hidden single 3 in row 8  (r8c9=3)
   r4c9<>3
   r8c9<>1
   r8c9<>6
   r9c7<>3
   r9c9<>3
Hidden single 3 in row 9  (r9c3=3)
   r9c3<>1
Hidden single 1 in col 3  (r7c3=1)
   r7c9<>1
Hidden single 3 in col 7  (r5c7=3)
   r5c1<>3
   r5c7<>1
Hidden single 1 in row 5  (r5c1=1)
   r6c1<>1
Locked candidate (2) in box 6
   r6c3<>2
Locked candidate (1) in box 9
   r9c4<>1
XY-Chain 94 12 digit = 2
   r1c4<>2
Locked candidate (2) in box 2
   r8c5<>2
HR(hidden rectangle) 78 85 digit = 6
   r7c8<>6
Naked single 7 row 7 column 8  (r7c8=7)
   r7c5<>7
   r8c8<>7
ER_Row1 = 4 Row2 = 8 col1 = 9 col2 = 4 digit = 6 target = 84 hinge = 89
   r8c4<>6
Hidden single 6 in col 4  (r4c4=6)
   r4c4<>9
   r4c9<>6
   r6c5<>6
Hidden single 9 in row 4  (r4c1=9)
   r4c1<>3
   r6c1<>9
Hidden single 3 in row 4  (r4c2=3)
   r2c2<>3
   r4c2<>2
Hidden single 3 in row 2  (r2c5=3)
   r2c5<>8
   r2c5<>9
   r3c5<>3
Hidden single 8 in row 2  (r2c4=8)
   r2c4<>9
   r9c4<>8
Hidden single 9 in row 2  (r2c2=9)
   r1c2<>9
Hidden single 3 in row 3  (r3c1=3)
   r3c1<>5
Hidden single 5 in row 3  (r3c3=5)
   r3c3<>2
   r6c3<>5
Hidden single 2 in row 3  (r3c5=2)
   r1c5<>2
Hidden single 2 in row 1  (r1c2=2)
Hidden single 2 in row 4  (r4c3=2)
   r4c3<>4
Hidden single 4 in row 4  (r4c9=4)
   r6c8<>4
   r6c9<>4
   r9c9<>4
Hidden single 4 in row 6  (r6c3=4)
Hidden single 5 in row 6  (r6c1=5)
Hidden single 9 in row 6  (r6c5=9)
   r1c5<>9
Hidden single 9 in row 1  (r1c4=9)
   r1c4<>1
Hidden single 1 in row 1  (r1c6=1)
   r1c6<>7
   r8c6<>1
Hidden single 7 in row 1  (r1c5=7)
   r8c5<>7
Hidden single 1 in row 8  (r8c4=1)
   r8c4<>2
Hidden single 2 in row 8  (r8c8=2)
   r6c8<>2
   r8c8<>6
   r9c7<>2
   r9c8<>2
Hidden single 2 in row 6  (r6c7=2)
   r6c7<>1
Hidden single 1 in row 6  (r6c9=1)
   r6c9<>6
   r9c9<>1
Hidden single 6 in row 6  (r6c8=6)
Hidden single 6 in row 8  (r8c5=6)
   r7c5<>6
Hidden single 6 in row 7  (r7c9=6)
   r7c9<>8
Hidden single 8 in row 7  (r7c5=8)
Hidden single 7 in row 8  (r8c6=7)
Hidden single 1 in row 9  (r9c7=1)
Hidden single 2 in row 9  (r9c4=2)
Hidden single 4 in row 9  (r9c8=4)
Hidden single 8 in row 9  (r9c9=8)