Sudoku Players' Forum (clone)

The first one:
They seem to have both hidden constraints(like the 4 digits R34C25 are the same as R25C34).
The first example I needed one trick to solve, the second one at least three.
Can someone find a better way to solve?
After the basics:

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.1.5....5.1.15.......1.5.2.351531.4.

The second one:

After the basics:

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2.5.6.1.65...6..5.5..6...5...66..4.5

Both are X variants - just different presentations.

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.1......5.1.1..........5.2.3......4. ED=2.9/1.2/1.2
2...6.1......6....5......5...6...4.5 ED=2.9/1.2/1.2


ED=2.9 is my rating for Generalized intersections.

For 1st puzzle at:

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.1.5....5.1.15.......1.5.2.351531.4.


Next step:

Solution path after above next step:

For 2nd puzzle at:

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2.5.6.1.65...6..5.5..6...5...66..4.5


Next step:

Solution path after above next step:

Found a third one:

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...5.........614....265.........4... ED=2.9/1.2/1.2


I've updated Sukaku6x6Explainer which will solve this Sudoku6X.