Lets hope it doesn't get to plan Z....
Maybe the "stages" were something like that. According to one Russian telegram, stage 2 is about to start:
"The Russian army is preparing for the largest military operation since the Second World War."
Russian troops, as well as units of the DPR and LPR, moving towards each other from the north , east and south , will soon have to close a huge cauldron , in which there will be a 50,000-strong Donbass grouping of the Armed Forces of Ukraine. These are the most trained units of the Ukrainian army - they have been in the combat zone since 2014, they are well trained and fortified.
Following the results of the first stage of the special operation managed to force the enemy to concentrate forces around Kyiv and Chernigov. Thanks to this, the Donbas grouping of the Armed Forces of Ukraine was left without an influx of fresh resources from the west and from the center of Ukraine.