tprhenr

Hello, I have been trying to read more and play more robot hands online, and I am curious how to spot the difference between a cue bid and a splinter bid in auctions where you've already agreed on a suit contract and you're investigating a slam. From what I can tell, they both involve bidding a new suit to tell partner something (either controls or shortness), but I am having a hard time understanding how you'd tell which is which--showing an ace vs. a singleton (likely a loser) in a particular side suit could potentially be very different pieces of information. For example: after a 1NT open and a Jacoby Transfer to 2S, responder bids 4C. Is that a splinter simply because of the jump? I've read that cue bids can also be jumps, hence the confusion. Thanks!