the IMPOSSIBLE position
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Hum... this one is actually possible, macer75. White plays Ng1-f3-e5-g6xf8 and back while Black just plays Ng8-f6-g8 etc.
Black to move, it would be impossible.
And another one, in a different style. Edited twice, I have really great talent...
mashanator wrote:
Why isn't that one possible? White's last move was g5-g6+ and Black's was Kh7-h8
oops, indeed.
edited to get rid of that problem. (there was no pawn on g5 before).
irontiger I think that one is impossible, I can't see blacks last move (sorry if im being stupid its late, 1am (late for me D:))
zTaiga wrote:
irontiger I think that one is impossible, I can't see blacks last move (sorry if im being stupid its late, 1am (late for me D:))
Yeah, that's the idea. Before editing, there were no pawn on g5, so you could achieve it by mashanator's line.
For post number 26, why couldn't the last 2 moves have been fxg6+ kh8?
RAaah... RE-edit.
I can't do this cleanly. 
Irontiger wrote:
Hum... this one is actually possible, macer75. White plays Ng1-f3-e5-g6xf8 and back while Black just plays Ng8-f6-g8 etc.
Black to move, it would be impossible.
Actually the position is possible with Black to move too, since after the bishop has been taken Black can lose a tempo with Rh8-f8-g8-h8
timojito wrote:
Irontiger wrote: Hum... this one is actually possible, macer75. White plays Ng1-f3-e5-g6xf8 and back while Black just plays Ng8-f6-g8 etc. Black to move, it would be impossible. Actually the position is possible with Black to move too, since after the bishop has been taken Black can lose a tempo with Rh8-f8-g8-h8
Well, I implicitely supposed that Black has still the right to castle of course, as it is precised in the fen string 
(good point)
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