I really like the new Tactic Feature, but it's really confusing and not easily comprehensible sometimes. For example at this board
the suggestion is to move 2. Qb7+ Kg8. But why is Kg8 the best move even if you loose your rook? Maybe every other move leads to a mate, but I can't get it.
I would like to have the option to try a move with any piece on the board (i.e. 2. ... Ke6), automatically followed by the best estimated computer moves to get to know what would be the mistake I made. That would really help to improve myself.
I don't get it either...
1.Qb7+ Kg8 2.Qxa8+ Kh7
White remains a pawn behind, so that Black retains a slight edge.
If the king retreats anywhere else, White draws by chasing the king hither and yon - that monarch meanwhile avoiding the knight fork at e4 if he can.
The problem with that line, though, is the suspicion that were the king to try a different retreat, White could not really stop him getting back to g8. In fact Black's choices are too limited to test White's alertness:
1.Qb7+ Ke6 (not ...Kf6 2.Ne4+ wins for White)
2.Qc6+ Kf7 (If ...Ke6 2.Nd5+ seems to add to White's attacking resources)
3.Qb7+ Qe7?? (Else ...Ke6 repeats and ...Kg8 is the move we are trying to avoid for the moment)
4.Rf1+ ... and now
[a] 4... Nf6
6.Nd5+ wins the Q
5.Qxa8+ Qd8 (else Black loses the other rook as well)
6.Qc6+ ... and White can fancy his chances, I think.
The conclusion we have to reach is that Black's only worthwhile try is indeed to play 1...Kg8 and shed the rook.
In my view this is pretty arcane stuff. It comes down to a choice between a draw game and a problematically small advantage. In this situation, and knowing what I've discovered about the position, I'd as lief play 1...Kg8 and offer to split the point!
important improvement suggestion
Chess tactics seem to be a useful exercise.
But is it really useful for improving?
If I find 3 tricky moves to solve the problem then I surely
made a great advance in the game - no doubt about it -
- was it the best possible moves ?
If not - If it was merely the second best 3 moves
- then chess tactics will lead me into the wrong direction
- I would rather dis-learn chess then improve chess.
So I suggest that each and every exercise should be
re-calculated by a chess program to ensure that
the "solution moves" are always the "best possible moves".