SkyTomTom by Thomas Snyder
See more discussion of the puzzles from the United States’ 2021 Puzzle Grand Prix on this post. Note there are some construction details and potential spoilers on that post so view it after you solve.
or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 407th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Skyscrapers rules; also standard TomTom rules. Use the integers 1-7.
Difficulty: 3 stars (estimate based off competition points; timing standards not available from our usual testers)
Solution: PDF
Note: Follow this link for classic Skyscrapers puzzles and this link for variations on Skyscrapers puzzles. Follow this link for classic TomTom and this link for TomTom variations.
Was about to give up, gave it another fresh go, completed in 15 mins. Don’t know if the technique I used was the intended but it worked, logically without bifurcating.