Method rotateBottom

app/src/main/java/solver/Sq1Shape.java:37–39

(int idx)

    }

    private static int rotateBottom(int idx) {
        return (rotate(getBottom(idx)) << 12) | getTop(idx);
    }

    private static int twist(int idx) {
        int newTop = (getTop(idx) & 0xF80) | (getBottom(idx) & 0x7F);