User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170322141429/@comment-1359322-20170323015002

Actually blitz in that context means fast.

"“Ise, the battle just started. The “Rating Game” is originally a game that doesn’t finish in a short time. There are times when it becomes a “blitz”, but mostly it’s a game that takes very long. Just like the actual chess game.”"

Basically it was saying there are times when RG ends fast.