# PG (6.5)

c0lefalk
Posers and Puzzles 13 May '08 23:35
1. 13 May '08 23:35
I'm gonna make 'em short, since I can't get any long ones to work.

Black

White

2. SwissGambit
Caninus Interruptus
14 May '08 00:55
Originally posted by c0lefalk
I'm gonna make 'em short, since I can't get any long ones to work.

Black
[fen]rnbq3N/ppppkQpp/3b1n2/8/4P3/8/PPPP1PPP/RNB1KB1R b KQ - 0 7[/fen]
White

COOK'D [SwissGambit]

The problem is that you are doing nothing to force any kind of sequence. Shortening the length of your PG's will not fix this.

In this one, it obviously does not matter whether White starts 1.e4 2.Qh5, or 1.Nf3 e5 2.Nxe5. You can't just play out a bunch of moves, capture the diagram, and then call it a Proof Game. You will be cooked every single time.

What you ought to do is study other Proof Games that ARE sound. Try to cook them. Try deliberately moving pieces out of order and see why it doesn't work. Then you will start to understand some of the sequencing tricks composers use to force their intended solution to happen.
3. 14 May '08 06:08
Originally posted by SwissGambit
COOK'D [SwissGambit]

The problem is that you are doing nothing to force any kind of sequence. Shortening the length of your PG's will not fix this.

In this one, it obviously does not matter whether White starts 1.e4 2.Qh5, or 1.Nf3 e5 2.Nxe5. You can't just play out a bunch of moves, capture the diagram, and then call it a Proof Game. You will be c ...[text shortened]... me of the sequencing tricks composers use to [b]force
their intended solution to happen.[/b]
Thanks for the help.
4. 14 May '08 06:15
I'll tell you what I told two others: check your proof game with a solver before posting it:

http://lestourtereaux.free.fr/euclide/
5. SwissGambit
Caninus Interruptus
14 May '08 06:51
Originally posted by Jirakon
I'll tell you what I told two others: check your proof game with a solver before posting it:

http://lestourtereaux.free.fr/euclide/
He was one of the 'others'.
6. 14 May '08 06:59
Oh yeah, I remember now. You were the first one. Are you having trouble with the software?
7. 14 May '08 18:47
Wait...no, you were the second one. golfer1 was the first.
8. SwissGambit
Caninus Interruptus
14 May '08 19:27
Originally posted by Jirakon
Oh yeah, I remember now. You were the first one. Are you having trouble with the software?
9. 15 May '08 04:41
I actually did, but I did have trouble with it.

I couldn't get it to translate to english (can't speak french).
10. 15 May '08 04:48
You don't have to. You can input positions in English FEN notation. There are only a handful of phrases you need to know in French:

"Solution Unique" means there's a unique solution.

"Probleme Demoli" means it's cooked.

"Aucune Solution" means there's no solution.

Just type your position (in English FEN) in the Input File, and on the next line type the number of half-moves. Save the file, start Euclide, and hope it says "Solution unique".