all that i know
Illegal Position Contest!
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alexchenchess wrote:
all that i know
An obviously illegal one and an obviously legal one.
#2 is illegal
alexchenchess 写道:
#2 is illegal
Tell me you are not serious
lchenpku wrote:
[A position claimed to be illegal]
Do you really believe this position is illegal?
n9531l1 wrote:
lchenpku wrote:
[A position claimed to be illegal]
Do you really believe this position is illegal?
prove it's not
This thread is meant for people to post illegal positions and challenge others to explain why they are illegal. If you have a legal position and want to challenge others to find a proof game, it would be better to post it in Forums>Fun With Chess>Shortest-proof-game challenge.
Your position is legal. If you repost it in the other thread, someone there will find a shorter proof game for it than the one below, which I didn't try to optimize.
Would moving the c3 pawn to e3 make #4701 a legal position?
n9531l1 wrote:
Would moving the c3 pawn to e3 make #4701 a legal position?
yep
10000000000000000000000% illegal.
HockeyFox7 wrote:
10000000000000000000000% illegal.
I can see you tried hard to create an illegal position that would make us think it might be legal without a careful analysis. This one was not too successful, but keep trying.
chess happy
english leangue
english dialog leangue
katok ngetike
Sameer_chess-player wrote:
n9531l1 wrote:
Would moving the c3 pawn to e3 make #4701 a legal position?
yep
Approximately how long a proof game would be needed for that position?
it's double check
There's no problem with the double check (fxe5+). But the position is obviously illegal. The triangle a2-a5-d2 contains five white pawns.