XGID=-B-BCACb-----B---bccbBa-b-:0:0:1:54:0:0:3:0:10
Unlimited Games. How should Red play 54?
Should Red make a run for it with 21/16, 5/1 or play safe?
There are times when you should just wait to see how things develop rather than try to force the issue and this position is one of them. 6/2, 6/1 is the best play. White may be forced to weaken his position on his next turn.
21/16, 5/1 is not technically an error but it is the wrong idea.