Tiger Woods penalized two strokes for bad drop. http://www.pga.com/masters/new...s-two-stroke-penalty
This drop was supposed to be placed as near as possible to the location of the first shot, but Tiger moved it further back because he saw an advantage in doing so. The rules do not permit a drop that confers such an advantage. Tiger must not have known that, since he frankly acknowledged that his drop was performed with the intended purpose of giving him an advantage:
<<<"I went back to where I played it from, but went two yards further back and I tried to take two yards off the shot of what I felt I hit," Woods said Friday after he signed for a 71, leaving him three shots out of the lead. "And that should land me short of the flag and not have it either hit the flag or skip over the back. I felt that was going to be the right decision to take off four (yards) right there. And I did. It worked out perfectly.">>>
Instead of being in a six-man tie for 7th place, Woods is now in a 9-man tie for 19th, five strokes behind the leader, Jason Day, of Australia.