# Mate in 2

BigDoggProblem
Posers and Puzzles 11 Dec '06 22:40
1. BigDoggProblem
Just...the Dogg
11 Dec '06 22:40
This is a problem I posted in the Chess Forum, but it got buried in a long thread.

Mate in 2
2. 11 Dec '06 23:57
Since it is obviously black to move. 0...c6 1.b4 Ka3 2.Ra1 #
3. BigDoggProblem
Just...the Dogg
12 Dec '06 03:27
It's funny how this puzzle is too hard for the chess forum but too easy for the puzzles forum.
4. 13 Dec '06 06:45
Originally posted by ilywrin
Since it is obviously black to move. 0...c6 1.b4 Ka3 2.Ra1 #
Hey buddy!......... so you do come around here to post too! Well, not that I'm haunting you with this puzzle addiction, but why is it 'obviously' black's move in this case? How did you figure that out?
5. 13 Dec '06 07:27
Originally posted by ckoh1965
Hey buddy!......... so you do come around here to post too! Well, not that I'm haunting you with this puzzle addiction, but why is it 'obviously' black's move in this case? How did you figure that out?
Because black couldn't have played the last move. His pawn hasn't gone anywhere, and all three spaces that the king could have directly come from would all have resulted in an illegal check. a3 and b3 are ruled out as it cannot have been put in check by an unmoved pawn, at a1 the rook couldn't have given a check by capturing on b1 due to the white king on c1. The king must have made it to a2 via b1, but in order for white to block him in, black needs to move something else. That was captured on either c1 or c5 last move.
6. 14 Dec '06 16:101 edit
but... what, say, if the board is uncommonly placed and white is playing 'down'?

black's legal last move would be pawn push and there's still mate in two, white to play.

(1.Rh8+ Kxh8, 2. g8(Q) # )
7. BigDoggProblem
Just...the Dogg
14 Dec '06 16:221 edit
Originally posted by pootstick
but... what, say, if the board is uncommonly placed and white is playing 'down'?

black's legal last move would be pawn push and there's still mate in two, white to play.

(1.Rh8+ Kxh8, 2. g8(Q) # )
1) 1...Kxh8?? is illegal - Pg7 guards the Rook.
2) You have to prove the board is reversed; you can't just assume it.
8. 14 Dec '06 16:371 edit
oh, course.. my mistake. that would be mate in one: Rh8 #
9. 14 Dec '06 16:41
2) i added the hypothetical rule 'white to play' in my post, that would necessitate the board to be reversed
10. BigDoggProblem
Just...the Dogg
14 Dec '06 17:34
Originally posted by pootstick
oh, course.. my mistake. that would be mate in one: Rh8 #
1...Kg6
11. BigDoggProblem
Just...the Dogg
14 Dec '06 17:37
Originally posted by pootstick
2) i added the hypothetical rule 'white to play' in my post, that would necessitate the board to be reversed
But you can't just arbitrarily set "White to play".
12. 14 Dec '06 17:441 edit
wrong again, eh, too puzzling for me. forget about it...i should be spending this time trying to win my games i guess. sorry i didn't mean to ruin your poser.
13. BigDoggProblem
Just...the Dogg
14 Dec '06 17:52
Originally posted by pootstick
sorry. i'm clearly taking this far too seriously.
Hey, if solvers could just change anything they wanted, there'd be no point in having a stipulation, right? Just give 'em a board with some pieces on it and let them find whatever they want to find.

I should do that next. A 'free-solving' exercise, for all you who like to whine about how pedantic and/or serious I am. There will be no criticism of anyone - we are all equals. Just sit around the fire, pull up a chessboard, and let it speak to you. All solutions that come from the heart are correct.
14. 14 Dec '06 17:54
truly, i didn't mean to offend.
15. 14 Dec '06 19:14
Nice and sardonic, BigDogg. I do think you are a bit pedantic, but correctly so. You point out our failures and work with them. Let's give you a medal.