Walin: How about ?
Bob McGuigan: is not the tesuji from the game, but it works. Some other responses from Black need to be checked, though. For example, what if is at ?
Tomas?: It becomes more complex, but it still seems to work for white. must fill at , and black a kills. at doesn't help.
Bill: Yes, in variation 4a loses at least one liberty. ;-)
But let's back up. In your original variation, after , does not kill. Each player has 2 dame left. White can afford .
(See Variation 2, above.)