Anonymous ID: bac27d May 11, 2018, 3:05 p.m. No.1376425   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>6538

>>1376368

 

Not my post from last bread but I can dig the historical matches.. however I think it is just referring to the "Castle lock" post..

 

Which is a chess term used to describe a near/inescapable situation..

 

AKA back against the ropes.. it's only a matter of time till checkmate.