How To Beat The World's Fastest Puzzler

A special video today featuring the race between Ryotaro Chiba and Ken Endo in the recent Heads-up Puzzle Championship. You can try the Coded Tents puzzle by Takuma Kitamura here:

Please NOTE the rules of this puzzle as a number of early comments have illustrated that I could have made them clearer:
Each tent is attached to one tree (so there are as many tents as there are trees).
A tent can only be found horizontally or vertically adjacent to a tree.
Tents are never adjacent to each other (ie not even diagonally).
A tree might be next to multiple tents, but is only connected to one.
The encoded numbers down the side tell you how many tents are in the respective row. Each letter represents a different number (which may be zero).

opt-pan.github.io/penpa-edit/?m=solve&p=zZL…


If you can't speak Japanese, please watch the video to understand the entry method!

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▶SOFTWARE◀
Play the puzzle in the video by clicking the link under the video (above). We are building a website which will allow you to enter your own sudoku puzzles into the software and this is coming soon!

▶ABOUT US◀
Hi! We're Simon Anthony and Mark Goodliffe, two of the UK's most enthusiastic puzzle solvers. We have both represented the UK at the World Sudoku Championships and the World Puzzle Championships. We're also "cryptic crossword" aficionados. Mark is the twelve-time winner of The Times championship and Simon is the former record holder for most consecutive correct solutions to The Listener crossword. We hope we can help your puzzle solving while also introducing you to some of the world's best puzzles.

Thank you for watching!
Simon and Mark