A raise based on distributional rather than high-card values in an attempt to pre-empt the opponents, rather than necessarily reach a makeable contract.
For raising partner’s 1♥ opening to 4♥ you might hold:
A raise based on distributional rather than high-card values in an attempt to pre-empt the opponents, rather than necessarily reach a makeable contract.
For raising partner’s 1♥ opening to 4♥ you might hold: