Defensive Enablers
I first came upon the concept of Winner-Enablers from watching declarers squander winners by failing to notice them, a far more common practice among those guys than among defenders. Indeed, my first impulse was to include this rarer breed with Declarer examples rather than have an entry for both declarers and the defense. Still it is also a defensive matter, and though I have few examples, I decided to enter them under Defense. Below are links to those few I have come across.