Method twist

app/src/main/java/solver/Sq1Shape.java:41–45

(int idx)

    }

    private static int twist(int idx) {
        int newTop = (getTop(idx) & 0xF80) | (getBottom(idx) & 0x7F);
        int newBottom = (getBottom(idx) & 0xF80) | (getTop(idx) & 0x7F);
        return (newBottom << 12) | newTop;
    }

    private static boolean canTwist(int idx) {
        int top = getTop(idx);