Mate in 19

1. Rb1+!! Kc2 2. Rb2+!! Kd3! 3. Rxg2!! Ke4! 4. Rg1 Kf3 5. Re1 Kf2 6. Rb1 Kf3! 7. Rb4! Ke3! 8. Kb1 Kd3! 9. Kb2! Kd2 10. Rb3! Kd1! 11. Rd3+ Ke1! 12. Kc1 Kf1 13. Rd2 Ke1 14. Ra2 Kf1 15. Kd1! Kg1 16. Ke1! Kh1 17. Kf2! Stalemate trap 17... Kh2 18. Ra3! Kh1 19. Rh3#! Mate 1-0