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..8.5.2....3..2...6..4.3........638......5.1...53...9.....4.....5.6....881.......
.........16.375.......4........8..9.3.9.....6.4..6..58...7...........1.....9...62
...........8..........6.........78.....49...3.37............7.......1............
..82.....5...1..............24..6......9...........5......8....1.....2..39.67...5
7....5...............68..3.5......2......2..82..93.6.1.....6.9....72.8...94...5..
7 forms an intersection in g2b7/g2c3
[g2r1346c3]<>7
2 forms an intersection in g3b3/g3c8
[g3r4679c8]<>2
1 forms an intersection in g3b3/g3c8
[g3r4679c8]<>1
1 forms an intersection in g3c2/g3b4
[g3r45c13][g3r6c1]<>1
8 forms an intersection in g4c9/g4b6
[g4r45c78][g4r6c8]<>8
2 forms an intersection in g3c1/g3b4
[g3r45c23]<>2
2 forms an intersection in g1b6/g1c9
[g1r79c9]<>2
4 forms an intersection in g4b7/g4r7
[g4r7c4789]<>4
6 forms an intersection in g4r2/g4b1
[g4r1c12][g4r3c23]<>6
4 forms an intersection in g1b6/g1r5
[g1r5c123]<>4
7 forms an intersection in g3r1/g3b2
[g3r2c45][g3r3c4]<>7
4 forms an intersection in g1b7/g1r8
[g1r8c78]<>4
3 forms an intersection in g3b1/g3c3
[g3r79c3]<>3
3 forms an intersection in g4b3/g4c7
[g4r457c7]<>3
4 forms an intersection in g3b1/g3r3
[g2r9c3][g3r3c6]<>4
4 forms an intersection in g3b3/g3c9
[g3r46c9]<>4
5 forms an intersection in g4b4/g4r5
[g4r5c56]<>5
9 forms an intersection in g4b8/g4r8
[g4r8c89]<>9
4 forms an intersection in g1b3/g1r2
[g1r2c2]<>4
2 forms an intersection in g2b2/g2c6
[g2r8c6]<>2
4 forms an intersection in g2b5/g2c4
[g2r8c4]<>4
5 forms an intersection in g2b9/g2r7
[g2r7c5]<>5
8 forms an intersection in g2r8/g2b8
[g2r9c6]<>8
1 forms an intersection in g4b3/g4r1
[g4r1c2]<>1
68 is a hidden double in g1c2
[g1r5c2]<>2<>3<>7<>9 [g1r6c2]<>2<>7
6 forms an intersection in g3b7/g3c3
[g3r45c3]<>6
9 forms an intersection in g3b1/g3c1
[g3r46c1]<>9
3 forms an intersection in g4c5/g4b5
[g4r46c4][g4r56c6]<>3
6 forms an intersection in g4c1/g4b4
[g4r56c23]<>6
24 is a hidden double in g4c8
[g4r5c8]<>1<>3<>6 [g4r6c8]<>1<>3<>6
345 is a naked triple in g4c4
[g4r3c4]<>4<>5 [g4r4c4]<>5 [g4r6c4]<>4
Puzzle Solved
Solution:
148957236593162874627483159471296385369875412285314697932748561754631928816529743
475891623162375984893642571256183497389457216741269358924716835637528149518934762
561783924928154637743962518619327845285496173437815296154639782872541369396278451
938267154546319872271845396824156739753928641619734528467582913185493267392671485
782395416369241785451687239543168927916572348278934651827456193135729864694813572