Kachy won a fast and furious renewal of the Listed Betway Cleves Stakes at Lingfield, a Fast-Track Qualifer.
Caspian Prince burst into the clear early lead from Kachy.
Turning for home, Caspian Prince found more, but with a furlong to race was joined by Kachy, who edged into the lead under Richard Kingscote.
On the line Kachy still had the advantage but Kimberella was closing with every stride and it was desperately tight.
Caspian Prince just held off Intisaab for third place.
Winning trainer Tom Dascombe commented: “Kachy is so much more relaxed now for some reason, whereas he was just getting a bit buzzed up last summer and doing stupid things. He has a preference for a left-hand rail – he has only won at Chester, Goodwood and here.
“We thought that he would come on for his first run, but he had to, especially as he was drawn in stall 11. He has half-missed the break and then gone pretty quick to get his position.
“I actually thought that he had won a bit easier than he had and I was surprised it was only a short-head, but he has won and it’s great for the owners, who have been big supporters of the yard. They have a Listed winner and a real live chance on Finals Day.
“He has done it from stall nine and stall 11 so far this season and it could be easier, unless he gets stall 12 on Good Friday!
“I don’t know what the opposition will be but you would think that, unless something comes back from Dubai, he would have to go into the race with a favourite’s chance.
“He will definitely go straight to Good Friday now. He is a better horse fresh and I was worried that running him 15 days apart today would be too much for him.
“A turning track seems to suit – he likes to be in charge – and it is ideal here because you can just pop out, put your hands down and let him roll.”
Richard Kingscote added: “I thought that Kachy would back up his win here last month because he enjoyed it here last time and the turning track really helps. He has trained on the All-Weather and seems to bounce off it well.
“He has overcome two bad draws now and I was on the back foot as well today because he half-thought about jumping early. There is still more progress to be made and I think, from a good draw, he is a very good horse around here.”
Paul Hanagan, jockey of second-placed Kimberella, said: “Kimberella has run a nice race and we are delighted with that performance as it is only his second run back.
“The quick gallop definitely helped him today, but he is very versatile. It was a great run and he will improve a lot for that performance.”
Ben Curtis, rider of third home Caspian Prince, commented: “We went a really good gallop, but that was a good run back over six furlongs with Caspian Prince.
“He has done most of his winning over five furlongs but, back over six, it was a good performance.”