# Mate in 1

BigDoggProblem
Posers and Puzzles 17 Sep '05 16:48
1. BigDoggProblem
Court Jester
17 Sep '05 16:48

#1
2. 17 Sep '05 16:56
I'm new so I don't really know the terms but the white Knight between the 2 pawns on the right so that one's on his left and one on Top
3. 17 Sep '05 17:02
Originally posted by Raisltin
I'm new so I don't really know the terms but the white Knight between the 2 pawns on the right so that one's on his left and one on Top
you mean Ng6++
4. 17 Sep '05 17:03
possible...
:-)
5. 17 Sep '05 17:24
Originally posted by BigDoggProblem
[fen]2bnnb2/1pPqkrp1/1pRrpp2/1Kpp4/5N2/8/2Bp3P/1N1Q3R[/fen]
#1
is this a legal position?
6. 17 Sep '05 17:35
It is in my view (the pawn at d2 came from h7), what is the problem is whether it is White or Black to move?
7. 17 Sep '05 18:03
Originally posted by BigDoggProblem
[fen]2bnnb2/1pPqkrp1/1pRrpp2/1Kpp4/5N2/8/2Bp3P/1N1Q3R[/fen]
#1
you couldnt give us any easier, could you?
8. Bowmann
Non-Subscriber
17 Sep '05 18:12
1...Qxc6#
9. BigDoggProblem
Court Jester
17 Sep '05 18:26
Originally posted by Bowmann
1...Qxc6#
Yes, but why is it Black's move?
10. BigDoggProblem
Court Jester
17 Sep '05 18:28
Originally posted by ilywrin
It is in my view (the pawn at d2 came from h7), what is the problem is whether it is White or Black to move?
Yes, it's a retro...with such a locked position for Black, it's premature to claim the position is legal until a more detailed analysis is done, though...
11. 17 Sep '05 19:52
Well the pawn structure looks possible, if not yet the getting all the pieces in position.

As white hasn't captured, the pawn on c7 must be the c-pawn.

Seven white men lost, so that enables the black h-pawn to capture four times, and three between a- and c-pawns. Two to the former too. The h-pawn can be all pawns, leaving the other three captures to be the white black-squared bishop, the b-pawn on b6 and a promoted a-pawn.

The black a-pawn must capture before the c-pawn, if the latter takes first all three captures must be made before the a-file if free for promotion. An impossibility.

Therefore the pawn on c5 is actually the a-pawn. The white pawn must have made c6 before b6xc5, and cannot move forward until c7 is evacuated by cxb6.

So the rook must have come via d6.

Struggling with the untangling the cluster then. Only possible last black move could have been exd2 (a pawn).

Stuck there for now.
12. 18 Sep '05 06:41
Originally posted by BigDoggProblem
Yes, it's a retro...with such a locked position for Black, it's premature to claim the position is legal until a more detailed analysis is done, though...
Very true ðŸ™‚ I'll leave the details to Bowmann, after all he claimed the solution...
13. 23 Sep '05 03:17
Originally posted by BigDoggProblem
[fen]2bnnb2/1pPqkrp1/1pRrpp2/1Kpp4/5N2/8/2Bp3P/1N1Q3R[/fen]
#1
Impossible for checkmate in 1 move, regardless of who moves...if not show us...
14. BigDoggProblem
Court Jester
23 Sep '05 03:36
Originally posted by Heavyhitter19
Impossible for checkmate in 1 move, regardless of who moves...if not show us...