It's G1, isn't it? And since that makes a mirrorable (is it a correct word?) position; I'm almost sure that it leads to a draw.

I wonder if that tutorial you were speaking about is no longer on the internet. I remember reading a very long tut. about 1-2 months ago. Was that it?

I suggest a new way of pointing mistakes alike (but not the same) in chess:

let "??" mean that from a winning position player made a move which enables his opponent to win. ("two grades down")

let "?" mean, that from a winning position player made a move, which enables his opponent reach the draw, or from a draw position - to a loss. ("one grade down")

let "!" mean a move that leads to a draw, when your opponent made a "?" mistake. ("one grade up")

let "!!" mean a move that leads to a win, when your opponent made a "??" mistake. ("two grades up")

Task #9

1. A1?? - A2?? (that's back to normal - reds can win again, because yellows lost their chance)

2. D1 - D2

3. D3 - C1

4. C2 - C3

5. D4? - D5!

6. C4 - G1

7. G2 - G3

Where red can reach the draw now? I think the difficulty of it is medium.