mtn1ms

Our 1♦ shows 5+♦ or 444 with 1♣ so we would open this 1♦ and respond 3♣ (showing limit raise in ♦). The bid would then go 3♥ (cue - A or K or singleton or void) 3♠ (cue - A or K or singleton or void) showing interest in 3N or 5♦. Opener would then bid 4♣ (cue - A or K or singleton or void) and responder would cue 4♥. Opener would cue 4♠ and with his 2 doubletons, knowing we have 1st and 2nd round control of ♠and♥ and a control in ♣ responder would bid 6♦. Without the A♥ responder would bid 4♦ and opener would bid 5♦. So our bidding would be: 1♦-3♣ 3♥-3♠ 4♣-4♥ 4♠-6♦ Without interest or without an available cue over 3♥ responder could bid 5♦ or 3N with suitable hand.

Our 1♦ shows 5+♦ or 444 with 1♣ so we would open this 1♦ and respond 3♣ (showing limit raise in ♦). The bid would then go 3♥ (cue - A or K or singleton or void) 3♠ (cue - A or K or singleton or void) showing interest in 3N or 5♦. Opener would then bid 4♣ (cue - A or K or singleton or void) and responder would cue 4♥. Opener would cue 4♠ and with his 2 doubletons, knowing we have 1st and 2nd round control of ♠and♥ and a control in ♣ responder would bid 6♦. Without the A♥ responder would bid 4♦ and opener would bid 5♦. So our bidding would be: 1♦-3♣ 3♥-3♠ 4♣-4♥ 4♠-6♦ Without interest or without an available cue over 3♥ responder could bid 5♦ or 3N with suitable hand.