after our suit overcalls, we play rubens advances. everything starting from cuebid in opp suit (included) to direct fit in partner suit (excluded) is TRANSFER.

rubens advances does NOT APPLY when

• partner overcalled in balancing position
• opponents raise their suit directly

Examples:

1. (1♣) - 1♥ - (pass) - 2♣=diamonds, 2♦=fit invit, 2♥=fit natural
2. (1♥) - 2♣ - (pass) - 2♦=natural F1, 2♥=spades, 2♠=fit inv, 2NT=natural, 3♣=fit
3. (3♦) - 3♠ - (pass) - 4♣=natural, 4♦=hearts, 4♥=spade fit, slam interest, 4♠=spade fit natural