For the auction at 18:30, wouldn't you rather bid like this? 1C 2S 3S 4C 4D 4S and then partner can keycard with 4NT if they have control in hearts? The king of hearts is enough.
More slam bidding including cue bidding: ua-cam.com/video/Rp20O-aw8WI/v-deo.html - here I talk about cue bidding showing 1st or second round control...Italian cue bids
For the auction at 18:30, wouldn't you rather bid like this?
1C
2S 3S
4C 4D
4S
and then partner can keycard with 4NT if they have control in hearts? The king of hearts is enough.
agreed
More slam bidding including cue bidding: ua-cam.com/video/Rp20O-aw8WI/v-deo.html - here I talk about cue bidding showing 1st or second round control...Italian cue bids
Indeed. The auction at 18:30 shows the usefulness of first or second round controls.
If east has K &Q of heart and diamond A with club K, Q you will miss small slam in spade!
5 CL.....Voidwood...