To keep the chosen square hidden, me and @vickalan will send a message with our chosen square to @HorusTheThird
Event Chess Game (vickalan - Martin0)
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@FM_Checkmate, nice! Things are just starting to get more interesting since now both players have started an event
This is the current position:
I will make a move after both players have chosen a square.
Interesting!!😛😊
I chose my king's hiding place, and sent it to HorusTheThird.
A question: Can the king move out of hiding? Or capture from its hiding place?
For example, if the White king is hiding on b1, and the Black rook moves to c2, can the king capture the rook?
ok, I have also chosen a square.
The king can not capture the rook in that case. It only comes out of hiding when it becomes threatened. I tried to hint that a bit when I mentioned stalemate in the second example. If white does not manage to check blacks king it will be stalemate. And if white plays Qf5 or Qf6, then black will capture the queen afterwards and it will be drawn by insufficient material. So white better find the black king with either Qa1+, Qb5+ or Qf4+ if he wants to win.
One more example for clarification that you may not make a move that would cause you to get in check:
Black chose the square d8. White chose the square d3.
If black would move the bishop it would result in his square revealed and the black king would be put into check. Moving your king into check is not legal, so black can not move his bishop. Black might argue that he knows the only possible square for whites king is d3 and checking it with Bb5 or Bf5 would reveal the white king and resulting in black to no longer be in check. However moves can not be done this way by assuming the opponents hidden square. The moves Bb5 or Bf5 are not legal.
6...c5
I presumed that the king can't make moves or capture when in hiding. But I thought I would ask just to make sure I understand correctly.
This is an interesting event. It would be interesting for an undefended piece to be sitting right next to a king (but not attacking), and yet the king can only stay there hiding. This includes a rook one space away but diagonal to the king, or a bishop one space away, but orthogonal to the king.
My move:
7.d5
Yeah, some clarifications are always good. It may also be interesting to play an endgame where we want to activate our kings, but can't.
7...d6
8.Qc1
8...e6
I'm glad I got clarification about a king not being able to jump out of hiding. This is a move I would not make if a king could possibly be at h7:
9.Bxh6
9...Bxh6
10.Qxh6
Your logic with 9.Bxh6 was a bit flawed. It is true that my king can not come out of hiding whenever it wants to, but a queen on h6 does in fact threaten the h7 square. So I have to admit that I did choose the h7 square for my king which is quite bad news for you. @HorusTheThird can confirm I chose that square.
My next move is.
10...Kxh6
That is his square. Did you think of that intentionally?
Moving the king to h7 to protect the pawn and prevent Bh6 is very common in these types of structures. So you could say that h7 was the most obvious choice (for an experienced player). Choosing another square is mostly good for the surprise factor, since if white assumes black choose the h7 square, he would never want to play Bxh6 anyway. So, yes, I did think of protecting the h6 square, but no, I did not think white would fall for the trap.
Yes, a blunder from me. My only hope now is that your king is exposed, giving me a slight advantage, but I doubt that makes up for a lost queen.
I'll play:
11.e4
Event # 63 Hide and Seek
Remove both kings from the board.
Both players choose a square on a board that is not occupied by a piece or is threatened by an enemy piece and keep the chosen square hidden for his opponent.
Whenever an opponent is threatening to capture at the chosen square, then the square is revealed and the king is put on that square. The only exception is if this would result in the kings standing next to each other, then the king will not be revealed and the king will not be put onto that square.
Until the square is revealed the player that chose that square may not put a piece on that square.
If the opponent manages to put a piece on the chosen square, the square will remain hidden and cannot be revealed as long as a piece is standing on that square (can typically only happen if a pawn moves forward to that square or an enemy king is on that square).
Note: The examples below assumes the rooks move as normal, but of course that is not the case in this game since the heavy rooks event is still active.
Example:
White chose the square c3. Black chose the square g7.
If white plays Bb2 or Bh6, then he is threatening the g7 square. Black must reveal his chosen square and put his king there.
If black plays Rc7 or Rh3, then black is threatening c3. White must reveal his chosen square and put his king there.
White is not allowed to move his pawn to c3, but he is allowed to move the pawn to c4.
Black is not allowed to move his rook to g7, but allowed to move over that square to for example f7.
Another example:
Black chose the square e5.
If white plays Qa1, Qb5, Qf4, Qf5 or Qf6, then he is threatening the e5 square. Black must reveal his chosen square and put his king there.
If white plays Kd4, Ke4 or Kf4, then the square will remain hidden since revealing it would result in the kings standing next to each other. In addition the game will end in a stalemate since black has no moves available.
Any other white move will also result in stalemate.
Another example:
Black chose the square g7. Black will not reveal his chosen square, despite white threatening that square since the square is already occupied by a pawn. However if white moves his pawn and promotes to any piece, then he is threatening the g7 square, so black reveals his chosen square and puts his king there. Then he can take the promoted piece with his king if he wants