lichess.org
Donate

Win a chessboard signed by Magnus Carlsen

19/24 - inching closer! A relief that the problem felt very difficult, but was actually very easy to brute force. I'm not sure what's the 25th point is gonna be ? Assios, can you let us know please how the 25th point will be done?
Probably with the castles and not castles
Because the king has had to move in the first problem, but it can castle in the second.
@ih8loss said in #133:
> How? Did you not understand the problem?
I did not know that castling was not allowed in a. I thought it is always allowed in chess problems, if not said it is not allowed
But the 2nd problem involves castling. It should've been mentioned. The solution has an explanation tho.
@Schachmattador said in #135:
> I did not know that castling was not allowed in a. I thought it is always allowed in chess problems, if not said it is not allowed

But there is also said "If it can be proved without a single doubt that castling is not possible, it is not allowed." This problem is such a case. If it can be proved, you don't have to say it.
@Jisu101 said in #137:
> But there is also said "If it can be proved without a single doubt that castling is not possible, it is not allowed." This problem is such a case. If it can be proved, you don't have to say it.
i did not know about it
Ok, when is the winner being announced?? Please, but the livestream should've started more than 2 and a half hours ago.