Exit Transfers
1NT - X - PASS - PASS - XX
1NT - X - PASS - PASS - XX - PASS - 2C/2D/2H/2S
1NT - X - 2C/2D/2H - PASS - 2D/2H/2S
If you have 8 points or more you should PASS. Your side probably has the majority of the points. 1NTxx making is a great score!
This is a FORCING PASS. Opener must redouble XX
1NT - X - 2C/2D/2H - PASS - 2D/2H/2S
1NT - X - PASS - PASS - XX - PASS - 2C/2D/2H/2S
1NT - X - 2C/2D/2H - PASS - 2D/2H/2S
With fewer than 8 points and a 5 card D/H/S suit - bid the suit below. Opener will carry out the transfer. 2D/2H/2S will be a better score than 1NTx not making.
With 5 Clubs, TRANSFER USING XX.
1NT-X-XX-P-2C
1NT - X - PASS - PASS - XX - PASS - 2C/2D/2H/2S
1NT - X - PASS - PASS - XX - PASS - 2C/2D/2H/2S
1NT - X - PASS - PASS - XX - PASS - 2C/2D/2H/2S
With fewer than 8 points and no 5 card suit you must PASS. Opener will redouble. Then bid your cheapest 4 card suit.
The Moscow Defence
Where a 1NT trump bid is doubled the Moscow convention can also be used.
After the double the responder passes which is alerted as a conventional bid.
The opener must rebid a five card suit or, not having one, redouble.
If the total value of the hands is less than 20 then the openers five card suit is the best option.
If the rebid was a redouble then the responder must bid her five card suit or the best 4 card suit.
If the total hand strength is more than 20 then the redouble can be left in with the expectation of a good score.