shithub: puzzles

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Forgot to shuffle the num[] array! That was probably introducing
some really subtle probabilistic bias in the generated latin squares.

[originally from svn r7302]

--- a/latin.c

+++ b/latin.c

@@ -1092,6 +1092,7 @@

 	for (j = 0; j < o; j++)

 	    col[j] = num[j] = j;

 	shuffle(col, j, sizeof(*col), rs);

+	shuffle(num, j, sizeof(*num), rs);

 	/* We need the num permutation in both forward and inverse forms. */

 	for (j = 0; j < o; j++)

 	    numinv[num[j]] = j;