How to make illegal positions

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Avatar of blagy
blagy wrote:
SerbianChessStar wrote:
blagy wrote:
Vance917 wrote:

One of those positions seems possible.  That black bishop might not have been a charter member, but might instead have been the result of a promotion.  I mean, assuming that anyone would actually promote to a bishop!


Yes, but none of the white pawns have moved, but the white rook has jumped over them. So that last position of SerbianChessStar's is illegal.


 and my second one was illegal, my first one was the only legal one/.


Your first one was illegal, how could the white bishop have gotten out?


Oh, I see. The white bishop could have been the result of a promotion.

Avatar of Apoapsis

I figured this out a long time ago... still sooo fun :P

Avatar of dc1985
[COMMENT DELETED]
Avatar of Scarblac

@Serbianchessstar: your second one is also easily legal:

Avatar of Paranoid-Android
Eiwob wrote:

 

What's wrong with this?

Nice one. Didn't even thought about this.

Avatar of Vance917

In that one with two rooks ganging up on the king in the corner ... suppose that the last move was rook takes pawn, check mate.  Just before that the other rook put the king in check when he was at G8.  That rook was unprotected, and the king could have taken it, but instead hid behind that pawn at H7.  Then the other rook takes that H7 pawn, check mate.

Avatar of yajnasboy

Avatar of yajnasboy
xbigboy wrote:

I figured this out a long time ago... still sooo fun :P

 


 How do u make it blank

Avatar of Apoapsis
yajnasboy wrote:
xbigboy wrote:

I figured this out a long time ago... still sooo fun :P

 


 How do u make it blank


8//8/8/8/8/8/8 w KQkq - 0 1

this pasted into the FEN will leave the board blank :)

Avatar of blagy
Paranoid-Android wrote:

 

Illegal:
Legal:

The first position is legal, aside from the fact that White doesn't have a king.

Avatar of Nightshadow

legal as well

Avatar of explorerchess

Ha! Ha! What a funny forum with all these crazy positions! Here is another one as crazy as the others:

Avatar of blagy

Avatar of rooperi

Is it just me who don't get the point of all this?

The 1st one was amusing, now it's all just variations on a theme...

Avatar of Paranoid-Android
rooperi wrote:

Is it just me who don't get the point of all this?

The 1st one was amusing, now it's all just variations on a theme...


I agree. I was hoping that members will post illegal checkmates or positions that look like they were taken from a normal game but with one little "illegal" detail. That would actually be fun. But here everyone is only saying "look, I can write FEN codes on my own!" Not much creativity in that.

@Nightshadow - I guess I didn't look closely enough. It can't be forced at least. Or can it be?

Avatar of calwum

those are pretty funny

Avatar of blagy

Avatar of blagy
Eiwob wrote:

 

What's wrong with this?

I give up, what is it?

Avatar of sss3006

of all the stupid posts - this takes the cake.

Erik - award required here.

there are so many such "impossible" positions that are possible that it would be imossible to ennumerate all and anyway what is the point?

Avatar of Eebster
sss3006 wrote:

of all the stupid posts - this takes the cake.

Erik - award required here.

there are so many such "impossible" positions that are possible that it would be imossible to ennumerate all and anyway what is the point?


The point, presumably, would be to make interesting illegal positions, such as:

As far as I know, all double-stalemate positions will be variations on this theme (and certainly all will be illegal).