Is this position legal?

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deviljosh

¿Me están tomando del pelo?

BigDoggProblem
Remellion wrote:

Eeyores: Holy heck that's complicated, but very familiar somehow. 

It's one of my compositions from an older thread. :)

Eeyores
BigDoggProblem wrote:
Remellion wrote:

Eeyores: Holy heck that's complicated, but very familiar somehow. 

It's one of my compositions from an older thread. :)

Nice. I never claimed authorship. I saw it in another site.

BigDoggProblem
Eeyores wrote:
BigDoggProblem wrote:
Remellion wrote:

Eeyores: Holy heck that's complicated, but very familiar somehow. 

It's one of my compositions from an older thread. :)

Nice. I never claimed authorship. I saw it in another site.

I didn't say you did. I was just explaining to Remellion why the position seemed familiar.

BigDoggProblem
Remellion wrote:

So I was fooling around some, and now my earlier reboot has a twin. Again, can white castle?

A wicked twin! Solution PM'ed.

Eeyores
BigDoggProblem wrote:
Remellion wrote:

So I was fooling around some, and now my earlier reboot has a twin. Again, can white castle?

A wicked twin! Solution PM'ed.

Solved, I'm ashamed to admit how much time I spent with this one. Good puzzle.

Ghostqiuyu

Illegal.

Ghostqiuyu

BLABLABLA

Remellion

Glad to see it was a "good twin, evil twin". As usual BigDoggProblem is correct with the unlocking (and again with your previously-composed double ep, it was from a thread with shoopi if I'm remembering correctly.) White can castle, and the easiest way to answer was probably to immediately unlock the lower left cage. Not a true CF, but the closest I've come.

Also, I might not have been able to solve my own puzzle if I weren't composing it. "A fool can ask a question a sage can't answer." :P

chaotic_iak

Dang that twin.

Meanwhile, here's a rather easy one.

BigDoggProblem
chaotic_iak wrote:

Dang that twin.

Meanwhile, here's a rather easy one.

 
Hmm, this part seems tough to unlock, given that black has all 8 pawns and could not have promoted a B on b1.



Remellion

I'd have thought it's simply illegal? White retracts Pe7xf8=R+, and either a) white retracts 2 more captures (3 in total) to return it to e2, while black is missing only 2 men total, or b) black retracts the cross-capturing Pd7xe6, which means the light-squared bishop died on c8 and its impossible ghost is on a2.

chaotic_iak

@Remillion: It's possible that the bishop on a2 gets back home before d7xe6. Just retract a capturing move in order to give White retro-moves, and figure out how to unlock the southwest cage...

The position is impossible due to the White king's cage, as pointed by BigDoggProblem. And yes, I need to make the cage easier to unlock (should have removed one pawn and added one piece there), since my intention is exactly Remillion's: the pawn cross-captured d7xe6 and e7xd6 in order to give White's e-pawn space to retract back to e2.

L_coolmint

Yes.

mosai

b6! wins

falcogrine

all seem to be trivially legal

BigDoggProblem
aceeye74 wrote:

show some moves!

Mashanator and falcogrine are right. They are all so easy that no moves need be shown.

chaotic_iak

Not all are trivial. #366, last move is Bxg7 (not Bg7). #367, the c/e/g pawns are originally from b/d/f, making one capture of the corresponding pawns. Trivial for an experienced solver, but not quite for a beginner.

BigDoggProblem
chaotic_iak wrote:

Not all are trivial. #366, last move is Bxg7 (not Bg7). #367, the c/e/g pawns are originally from b/d/f, making one capture of the corresponding pawns. Trivial for an experienced solver, but not quite for a beginner.

Meh, they don't need much experience to get these. The guy's just making diagrams and hoping they turn out to be good puzzles.

As usual, that doesn't work.

lvc
Chessgrandmaster2001 wrote:

Title says it all. Post a position, and the Chess.com members will decide whether it is legal or not.

#1 all are illegal

 

 

 

 

 

 

 

 

 

 

 

#2

 

 

 

 

 

 

 #3

 






#4

 

NOTE: Person needed to create puzzles.