Method solution

app/src/main/java/cs/min2phase/Search.java:96–106

(String facelets, boolean rotate, Random r)

    public static char[] rotateIdx = {0, 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'B', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'L', 'D', 'D', 'D'};

    public synchronized String solution(String facelets, boolean rotate, Random r) {
        String sol = solution(facelets, 21, 10000, 0, 2);
        if (!rotate) return sol;
        String[] moves = sol.split(" ");
        char lastMove = moves[moves.length - 1].charAt(0);
        int rot;
        do {
            rot = r.nextInt(24);
        } while (rotateIdx[rot] == lastMove);
        return sol + rotateStr[rot];
    }

    /**
     * Computes the solver string for a given cube.