You can try solving brilliant moves in Janggi against the computer.
In version 6.7, problems for moves 5, 7, 9, and 11 have been replaced.
It includes a total of 2,200 problems for the extended group: 300 problems each for moves 5, 7, 9, 11, 13, 15, and 17, and 100 problems for move 19.
You can check the correct answers by selecting "Computer vs. Computer" as your opponent.
For reference, in Janggi, there is a rule called "Big Jang" where, if the situation becomes a "Great King" (where two kings face each other on the same line with no pieces between them), the king captures the other king to result in a draw. The images of the chess pieces were taken from https://github.com/Kadagaden/chess-pieces and are used under the CC-BY-4.0 license (https://github.com/Kadagaden/chess-pieces?tab=CC-BY-4.0-1-ov-file#readme).