Subject to the provisions of this article, the rights to the services of one player may be awarded to a club of another league, provided the following conditions are met, unless otherwise expressly prohibited:
(a) Regular disclaimers were requested and cleared during the absence of the season; and
(b) the player has not accumulated in ten (10) or more NHL games since the regular disclaimers were last deleted, and more than thirty (30) days on an NHL squad have not been since the regular disclaimers passed on him were last clarified. -NHL Collective Agreement
What says that a player who Pirri on 10/4/18 on 7/18/18/18/18/18/18/18/18/18/188/8/188 / 188/184/184/184/184/184/1
Brandon Pirri was recalled to the Golden Knights on 18.12.18. He has played in eight games before tonight since he was called back. He was on the squad for 19 days.
Therefore, if he played two more games or was in the active squad for eleven more days, he would again renounce if the Golden Knights wanted to send him down to the AHL.
That brings us today. Due to injury and illness, the Golden Knights at Pirri had only 12 active and available strikers. Reilly Smith, William Carrier, Erik Haula and finally we learned that Cody Eakin was not available in today's game. Without Pirri, the Golden Knights would have only 11 available.
Enter another CBA determination called "Emergency Callback."
(ii) is recalled by a smaller league club in an emergency and plays (10) NHL games (cumulative) during an emergency call in ten games. For the sake of clarity, games played during the regular recall game do not count to the ten (10) NHL games in this subsection (ii). – NHL Collective Agreement
Since the Golden Knights had only 11 forward games without Pirri, they were officially in an emergency situation. So they brought Pirri back to the AHL, stopped the non-emergency clock at eight games, called him back under the distress call and now had a brand new watch.
So Pirri played as a game tonight on his emergency call. As long as Eakin, Smith, Carrier and Haula ALL are not available for play, Pirri will continue to play on the emergency clock. As soon as one of these four is available, the Golden Knights must immediately return Pirri to the AHL and stop the emergency clock. If they want to remember him again, the non-emergency clock, which is eight and 19 days old, will be restarted.
Emergency clock – 1 game, 1 day
Non-emergency clock – 8 games, 19 days  There you have it. That's why it happened and why George McPhee is smarter than you and me and probably the rest of the NHL (at least for a few hours until I figure it out).