Helpful
I enjoy chess casually, and this really helps. Very streamlined and simple.
My only complaints:
1. situation 42: it's silly because you start the rook next to the king, but the capture is a "wrong" move. It's impossible and not helpful as a player.
2. On that line, some of the 25-knight or something else ridiculous situations feel sillly in comparison to the genuine value of the game. It does nothing to know how to maneuver one of a dozen pieces you'll never see playing anyone, let alone someone with skill. I'd love to see these challenges replaced with real chess situations; I loved the ones with traditional openings that showed you the holes in some of those defenses.
Great, keep it up and please improve these little things of this great game!
You get the 10!