Puzzle #50: White to Play; White to Tinue

Hello Fellow Takkers!

This week's puzzle is a size 5, early mid-game Tinue. Next week I will try to do a size 6, unless I come across a more interesting board state during the week.

As always, if you have suggestions for content, just let me know via comments on this blog, r/Tak, Discord, or email.

For the purpose of these puzzles, Tinue is defined as a board state in which no matter what the opposing player does during their turn (Black, in this instance), a road win will be awarded to the other player (White) on their next turn. If you are familiar with Chess, Tinue is very similar to Checkmate.

Please form your answer with PTN or a link to your solution via ptn.ninja. And, remember to add the r/Tak spoiler tag to your solution so as not to ruin it for others. To do this, put your answer in brackets and follow with (/spoiler). Ex:  [26. a3- Sa3](/spoiler).

To narrow things down to a single solution for this puzzle, I am looking for the board state of Tinue achieved in 7 moves (this would mean the win would occur in 9 moves).

I believe all responses by Black are singular and forced. If the response is not singular and forced, then any response results in the same following move by White. Of course, I could have made a mistake...in that case, let me know so I can fix it or, at least, apologize.

P.S.  If you find another Tinue, I'd certainly be interested in seeing it.

Enjoy!