Honestly, you caught him out of balance since that superb opening again and again every turn in a very downward spiral of doom.
In the end he failed to achieve (or better said rescue) anything of worth; his army is trashed (alone 7 dead Cav-XXX), his economy is very seriously ruined and he has lost nearly all valueable geographic strongholds and you have still four clear turns left to push his troopers far far away into the steppe together with an improved C&C.
He made some mistakes of course, but in the end this won't last long if you didn't commit some significant blunders... so, just relax and keep smiling.
Btw, post # 253 suggests a total of 15 Guards RDs, including the losses. If there's any reserve army left in the shadows, it would properly contain at least some of them.






