White to play and Win. (I have seen some sources indicate White to play and draw). In the spoiler the second solution may be an improvement.
(From
Inolvidable danza · ELPAÍS.com) Notes in Spanish. Chess Base ran the puzzle several years back without the answer. The answer I have may have come from a book.
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1.Rb4 Qc8 2. Rb8 Qh3 3. Rh8 Qxh8 (Nh4 4. Rh4 Qc8 5. Rh8 Qb7 6. Rb8) 4. Ng6+ Kd7 5. Nxh8 Nf4 6. a3 Ke7
