what local rule make this a loss for white?

not time out. enough time remained. Are there any local rule which makes this a loss for white?

https://www.littlegolem.net/jsp/game/game.jsp?gid=1937205

Gomoku PRO rules on LG:No draw rule.First player who could pass all his remaining moves is winner.

If I understand it correctly, black can pass all remaining moves and white will not win because there is no space on board to make 5 in a row.