I have and I can beat Tutorial 10 on my own now. It just involves making good use of the Wasteland. I'd have a video up if recording wasn't such a pain. (I only have the game on emulation.)
I'm going to provide the solution, which will be set to color black since it's a spoiler:
*Turn 1:
-Serdic moves 1W,1S
-Igraine uses either spell (doesn't matter which, unless you already moved Serdic, in which case don't use Yumil Magna or you'll hit him; use Seven Menace instead) on the enemy to the south
-My note: for some reason, the guy doesn't try to move through both Serdic and Igraine, even though he could. The AI clearly fears that Serdic may counterattack, but it's not a 100% chance.
*Turn 2:
-Serdic moves 4N
-Igraine moves 1N,1W
-My reasoning: if you don't notice, Igraine moves onto Wasteland, which requires 3 Movement to move onto. This means that she is hard to attack, and she still remains close to the back enemies. This is what you want because of that freaking Archer who has his ridiculous range.
*Turn 3:
-Igraine uses either spell (doesn't matter which) on the enemy 1E of her.
-Serdic moves 3S,2W
-My reasoning: this gets rid of the armor guys and puts Serdic in a position where the mounted guy can't get at him while putting him in range of the archer, which is where you want him so that he won't target Igraine and OHK her.
*Turn 4:
-Serdic uses Revitalize
-Igraine moves 1S,2E
-My reasoning: Igraine is moved onto another Wasteland tile, one that is directly north of yet another one. The mounted guy already has to use all of his Movement to get on the tile, so he won't be able to attack Igraine. As for Serdic, again, he should be shot by the archer.
*Turn 5 (mounted guy moves to 3S of Igraine):
-Serdic moves 2W
-Igraine uses Seven Menace on archer
-My reasoning: SM will OHK the Archer. Serdic's move will keep Igraine from being attacked by the mounted guy, and Serdic will survive the attack. From that point, you should have this in the bag. Just kill the mounted guy if he tries attacking and stay out of the same row and column as the War Mage.
Hmm, I should get to making progress on it. As soon as I can get past DeSmuME's BS of being slow even when NOT recording.
As for defeating every enemy on the first chapter, it involves Serdic's Overbreak and mechanics abuse. You can also delay triggering Gauss's appearance, as well as Ernest's. The mages, just keep them at bay by threatening them with Kay (the horse rider) and avoid being on the same diagonal as any of them.
And you want to know something? The Route Maneuver system is something that more strategy games could use. In AW, infantry would no longer be a problem because they would be weakened with a Route Maneuvered unit and then the stuff in the back could be hit hard. Indirects would have to be buffed to be viable, but that's fine by me, they need to be buffed to survive in an environment where meatwalling isn't so broken. Rondo of Swords wouldn't have to be the ONLY strategy game that makes of it, just the one that revolutionizes the genre.