54 ply
playstrategy.org/study/jNlZC1cp

21 ply

playstrategy.org/study/STK9E4VS

playstrategy.org/study/embed/STK9E4VS/CD7aLwj5

11

19 ply

playstrategy.org/study/Crk1RSXI

21

18 ply
playstrategy.org/study/vbbnwTE3

1

Perhaps we need more black stones on the board.
20 ply
playstrategy.org/study/zY8adaF4

Entries for Weekly Challenge 168 has closed. Thanks to all users who participated.

The winner is @woll who demonstrated it is possible to reach a stalemate position in a game of Lines of Action after 18 ply in the following study: playstrategy.org/study/vbbnwTE3/9c0dtryd

Users are still welcome to attempt this challenge and post answers here, but the winner has been fixed. The next challenge can be found here: playstrategy.org/forum/weekly-challenges/weekly-challenge-169-fifteen-love