Castling in chess is not working correctly in https://gcompris.net/download/qt/linux/beta/gcompris-qt-1.0-beta-Linux64.sh, the prerelease for version 1.0. It works correctly in version 0.81.
After castling, the game allows no more moves (though it is possible undo...kind of).
Steps to reproduce:
1. White: `E2 -> E3`
2. Black: `A7 -> A6`
3. W: `G1 -> G3`
4. B: `B7 -> B6`
5. W: `F1 -> E2`
6. B: `C7 -> C6`
7. Click on the white king on `E1`
So far, so good.
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8. Click on `G1`
Expected behavior:
The white king moves to `G2`, the white rook on `H1` moves to `F1`, no pieces are listed as being captured, no squares are highlighted, and the text at the top of the screen says "Black's turn".
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Actual behavior:
The king does move to `G1`. However, the white rook on `H1` disappeared, there are two white rooks in the list of white pieces that black has captured, `F1` and `G1` are still highlighted, and the text at the top of the screen says "White's turn".
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Clicking on the white king on `G2` causes it to move one square to the left and one square below `A1`.
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At this point, it is not possible to move any piece.
Clicking the undo button gives the expected behavior. The only issue is that there is still one white rook listed as having been captured by black (even though white still has all 16 of its pieces on the board).
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Steps 7, 8, and clicking undo can be repeated now. Each time they are repeated, another white root is listed as having been captured by black.