Francesco,
I’m all for seriously discussing every kind of evidence and argumentation.
But, please read your own ‘source’: you say, ‘just one Leopard… lost’, while the article you linked to, is ‘uncertain’ about losses — although it contains a photo showing two Leopards destroyed by THK air strikes after being abandoned (and de-facto captured by the Daesh, even if temporarily), etc.
Mind: my article is not even going into discussion about how many tanks the Turks might have lost — or not. This is so because discussing the number of ‘total losses’ is kind of pointless. It’s since WWII that at last ‘most’ of ‘destroyed’ and especially all of ‘damaged’ vehicles (no matter extension of the damage) are recovered from the battlefield, and — ultimately — repaired. The rest is rather a question of money and time.