can someone please give me a hint to continue with this puzzle? I don't need a full solution, cuz' I like to finish it myself

thank you!
- Code: Select all
2..|.4.|.5.
35.|.9.|68.
8..|..7|...
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48.|...|5..
.29|4.1|738
...|.8.|429
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.48|2..|..3
935|.1.|.7.
.62|.3.|..5