Me vs Tactics Trainer
I don't so much loathe Tactics Trainer as I despise the thing.
My typical Tactics Trainer session
Right --- +3
Right --- +8
Right --- +5
Wrong --- - 47
The actual numbers might be different, but that is exactly what it feels like.
I readily acknowledge I'm not the sharpest knight in the chess box. I understand that there are concepts that I've yet to identify, let alone master. And I understand that there's a learning curve.
But, I'm quite certain that - at times - I've chosen a perfectly adequate move for which I'm penalized. Or the computer makes a response move which I can't imagine a living, breathing human making.
Which, I understand, may be a failure on my part and not the system itself. There being more to Heaven and Chess than is encompassed in my philosophy, and all that.
But, damn .... you get a series of problems right and then BLAMM-O - those gains are blown out because ...
Tactics Trainer doesn't actually 'splain why it is your choice is wrong.