1.Rc1+! [Thematic try 1.Ke2!? a3! (not 1...Sb5? 2.Rc1+ Kb6 3.Rxd7 main thematic line) 2.Rc1+ Kb5 /Kb6 and easy draw=] 1...Kb6! [1...Kb5 2.Rxd7 Bb2 3.Rcc7 Ba3 4.Ke2+- ] 2.Rxd7 [Also is wrong: 2.Ke2? a3= ] 2...Sb5 3.Ke2! [The try 3.Rd8!? There is "a study in a study". BTM, draw: 3...Be5 4.Rc5 Bd6 5.Rc4 a3 6.Ra8 Sc7! 7.Rxa3 Kb5 8.Rac3 Sd5 9.Rc5+ (9.Rc1 Sf4! 10.Kf1 e2+= ) 9...Kxb4 10.R3c4+ (or also 10.Rxd5 Bg3+= ) 10...Kb3 11.Rc6 Bb4+ 12.Ke2 Se7 draws] 3...a3 4.Kd3! [Thematic try 4.Rh1!? Kc6! (not 4...Be5? 5.Rh6+ Sd6 6.Rdxd6+ Bxd6 7.Rxd6+ Kb5 8.Rd8+- ) 5.Rd8 a2 6.Ra8 a1Q 7.Raxa1 Bxa1 8.Rxa1 Kd5! 9.Kd3 e2 10.Rc1 Sd4!= ] 4...Bb2 5.Rg1!! important choice of the move by wR [Thematic try 5.Rh1!? Kc6! 6.Rd8 a2 7.Ra8 Sa3! 8.Ra5 Kb6 9.Rh6+ Kb7 /Kc7 10.Rf5 a1Q 11.Rf7+ Kb8 /Kc8/Ka8 and Black's win, because impossible Rh8 such in line 6/\a2 (see below)] 5...Kc6 6.Rd8 e2! [6...a2 7.Ra8 Sa3 8.Ra5 Kb6 9.Rg6+ Kb7 10.Rf5! a1Q 11.Rf7+ Kb8 12.Rg8# ] 7.Kxe2 Sc7! to get on a6 8.Rd2 Kb5 9.Kd3! [9.Rg5+? Kxb4 10.Kd1 Bc3 11.Rc2 Bb2 12.Rh2 Se6 13.Rg8 (13.Rxb2+ axb2= ) 13...a2 14.Rxb2+ Ka3 15.Rxa2+ Kxa2 16.Kc2 Ka3= ] 9...Sa6 [9...Kxb4 10.Kc2 Se6 11.Rg4+ Kc5 12.Kb3 Sd4+ 13.Ka2+- ] 10.Rg5+ The Black interfere with a strong move Nxb4 compelling to capture a pawn the wK - 10...Kxb4 11.Rg6 Sc5+ 12.Kc2 a2 13.Rg4+ Kb5 14.Kxb2 a1Q+ 15.Kxa1 Sb3+ 16.Kb2 Sxd2 17.Kc3 win.
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