March of the Quads: Diamonds and Pearls

BremSter solves "Diamonds and Pearls" from the March of the Quads Puzzle Pack.
A Sudoku using the Quadruples and Lockout Lines constraints.

The March of the Quads Puzzle Pack was made on Skunkworks in March 2022, and was a wonderful collaboration of many amazing puzzle creators.

📋 Puzzle Rules:
• Normal Sudoku rules apply.
• Digits in a Quadruple circle must be placed at least once in the four cells touching that circle.
• Digits on diamonds must differ by 4 or more. Digits on a line must fall outside the range defined by their attached diamonds and may repeat if allowed by other rules. A diamond terminates a line segment.

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[kana]

That was easier than I expected. Lockout lines are difficult for me.

[anaayoung]

21:08 .... uf I did it! Lookout lines are hard 😅
Thanks!

[praematura]

Really off today, I broke this so many times, and I'm usually decent at the lockout constraint. Did a bit better than last time, though: 21:00 vs 15:50 (conflict checker off), but I think I need more coffee. 😛 Let's see how I do on the others!

[donaldsnyder]

50:51 with lots of help.

That one was pretty tough.

Nice puzzle tho.

Now to see what I can pick up from Bremster.

[drengskap]

Lockout lines are probably the most challenging sudoku variant for me - either that or one of the indexing variants. They are just not intuitive to think about. I got there in the end, but it was a long, hard slog.

[RADZIO]

36:09 for me. Box 6 gave me _a lot_ of trouble