The correct option is B He played well enough to win.
In the given sentence, there are two adverbs: 'enough' (adverb of degree) and 'well' (adverb of manner).
Adverbs of manner are either placed in the mid position or end position. When placed in the end position (after the subject and verb), the adverb 'well' is placed right after the verb 'played'.
The adverb of degree 'enough' is placed after the adjective or adverb that it modifies.
Also, the adverb must be placed closest to the word (adjective, verb or adverb) that it modifies.
Hence, 'well' will be placed after the verb 'played'. Since the word 'enough' modifies 'well' (it means 'He played in a good manner to the necessary degree), it shall be placed after 'well'.
So, the correct option is B: He played well enough to win. ('to win' is a prepositional phrase)
The given sentence is incorrect because 'enough' does not modify the verb 'played', so it wouldn't be placed right after. Hence A is incorrect.
Option C is incorrect as the placement of the adverb 'enough' is not right.
Option D is incorrect as the adverb 'enough' is placed far from the word it modifies 'well'.