| Author |
Message |
John Turana (Tsukareta)
New member
Username: Tsukareta
Post Number: 1
Registered: 6-2020
| | Posted on Friday, June 19, 2020 - 12:35 am: | |
Hello!
I'm trying to wrap my head around how I'd execute the following:
1. There is a piece on the board called a Prince.
2. If the King is checkmated and there is a Prince on the board, the Prince is promoted to a King and the King disappears.
3. If there is no prince and the King is checkmated, the game is over.
I cannot for the life of me figure out if it is even possible to make an "on checkmate" command to promote a piece. Is this outside the capabilities of ZoG? If so, how would I go about it in a similar fashion? |
Shigeki Watanabe (Watanabe)
New member
Username: Watanabe
Post Number: 28
Registered: 3-2018
| | Posted on Wednesday, July 01, 2020 - 1:35 am: | |
I suggest that you make each players have a additional move-turn after moving a piece due to check if the own King is attacked or not. |
Shigeki Watanabe (Watanabe)
New member
Username: Watanabe
Post Number: 29
Registered: 3-2018
| | Posted on Wednesday, July 01, 2020 - 1:52 am: | |
1:
(turn-order (White move) (NPC White check) (Black move) (NPC Black check) )
2:
(piece
(name King)
(moves
(move-type move)
(king-shift n)
....
(move-type check)
(king-check)
)
)
3:
(define king-check
( (if attacked?
(check-Prince)
else
add
)
)
)
4:
(define check-Prince
( a1
(while (on-board n)
(while (on-board e)
(if (and friend? (piece? Prince) ) (change-type King) add)
e
)
n
)
)
) |
Shigeki Watanabe (Watanabe)
New member
Username: Watanabe
Post Number: 30
Registered: 3-2018
| | Posted on Wednesday, July 01, 2020 - 1:56 am: | |
3:
(define king-check
( mark
(if attacked?
(check-Prince)
back
capture
add
else
add
)
)
) |
Andreas Speiger (Andique)
New member
Username: Andique
Post Number: 25
Registered: 11-2007
| | Posted on Wednesday, July 08, 2020 - 5:41 am: | |
@ John:
Does the code work Shigeki wrote? |
Shigeki Watanabe (Watanabe)
New member
Username: Watanabe
Post Number: 31
Registered: 3-2018
| | Posted on Wednesday, July 15, 2020 - 1:02 am: | |
That is not enough.
It doesn't work unless devised more.
I thought to implement similar processing for the royal pieces (king-pieces) such both Gyokusho (King) and Taishi (Prince) in the ZRF of the ancient Shogi. |
M Winther (Kalroten)
New member
Username: Kalroten
Post Number: 179
Registered: 1-2007
| | Posted on Friday, October 30, 2020 - 7:31 am: | |
It is easier to do if the prince is promoted when the king is captured. After all, checkmate is really capture in next move, so it is really the same thing. |
Andreas Speiger (Andique)
New member
Username: Andique
Post Number: 26
Registered: 11-2007
| | Posted on Saturday, February 06, 2021 - 9:37 am: | |
Nearly.
If king is captured, there exist no stalemate.
But i think, it is the "real" chess. This was the original rule in very old times, when chess was invented.
I prefer this old rule.
I have two kings with different loss-conditions:
(loss-condition (White Black) (checkmated King1) )
(loss-condition (White Black) (captured King2) )
So i can choose at the beginning of the game. |