Cave by Prasanna Seshadri
or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the linex mode where left click+drag draws lines and right click marks X’s)
Theme: Logical (Originally on 2014 Hungarian Puzzle Championship)
Author/Opus: This is the 49th puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Standard Cave rules.
Answer String: Enter the length in cells of each of the cave segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:15, Expert = 8:30
Solution: PDF
Note: Follow this link for other classic Caves. If you are new to this puzzle type, here are our easiest Cave Puzzles to get started on.
26:45.After spending ~20 minutes in finding the logical continuation,I got fed up and ended taking a guess at EgraPavar assuming it to be a non-shaded cell and then the puzzle continued without further hiccups.
I’m also failing to find the logical continuation after the opening here, (nor have I made a lucky guess yet). Is there a fixed schedule of which puzzles get walk-throughs? I could use the help on this one, since I’m just not seeing something. (I’ll try again later to see if fresh eyes help.)
OK. I went and watched the Cave walk-through from February, and after that I was able to solve this one in 18:13 with no guessing.
The key tip for me from the video was arire znxr n 2k2 purpxreobneq cnggrea bs pnir naq jnyyf. That’s an easy, local determination that
avoids a global-constraint violation.
Thanks for that video. Thomas!
Can someone point me to that video? Thanks!
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5:52. Not too far off from master!