How can White win? White can sacrifice the rook 6 times in this fascinating study from Troicki 1910. If the Queen accepts the rook sacrifice, then Knight forks will follow! Solution: 1.Rb4-Qc8 2. Rb8-Qh3 3. Rh8-Nh4 4. R:h4-Qc8 5.Rh8-Qb7 6.Rb8-Qb8 7.Nc6+