www.arves.org - Prusikin 45 JT 2023

Studies awarded for the 45th birthday jubilee of

Prusikin, Michael 1978

[Event "1.p Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Timman=J"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "1rk2r2/8/1p3n2/5p1R/1qN5/5R1K/1P6/3Q4 w - - 0 1"] [PlyCount "23"] [EventDate "2023"] 
 1. Rh4 (1. Rc3 Rb7 $1 2. Rh4 (2. Ne5+ Qxc3+ 3. bxc3 Nxh5 4. Qxh5 Rg7 5. Nf3 Rfg8 $11) 2... Ne4 3. Nxb6+ Kb8 4. Nd7+ Rxd7 5. Qxd7 Ng5+ 6. Kg2 Qxb2+ 7. Kf1 Qb1+ $11) 1... Ne4 (1... Kc7 2. Rc3 Rh8 3. Nd6+ $18) 2. Qd5 $1 (2. Ne5 Qd2 $1 $11 3. Rc3+ $2 Qxc3+ 4. bxc3 Nf2+) 2... Rb7 $1 3. Ne5 $1 (3. Qe6+ $2 Kb8 $19) 3... Qxb2 (3... Qd6 4. Rc3+ $1 Kd8 5. Qxd6+ Nxd6 6. Rd3 Rf6 7. Nc4 Ke7 (7... Rd7 8. Nxb6 Re7 9. Nd5 $18) 8. Rxd6 $1 Rxd6 9. Rh7+ $18) 4. Qe6+ Kb8 5. Nc6+ Ka8 6. Qf6 $3 Nf2+ (6... Qxf6 7. Ra3+) (6... Rxf6 7. Rh8+) (6... Nxf6 7. Ra4+) ({Main-} 6... Ng5+ 7. Qxg5 Rh8 8. Rxh8+ Qxh8+ 9. Kg3 f4+ 10. Rxf4 $1 Qc3+ 11. Kg4 $1 Qxc6 12. Qg8+ Ka7 13. Qa2+ Kb8 14. Rf8+ Kc7 15. Qh2+ $1 $18) 7. Kh2 $1 ( 7. Rxf2 Qa3+ 8. Kh2 Rh7 9. Qxf8+ Qxf8 10. Rxh7 Qd6+ $11) 7... Ng4+ 8. Kg3 f4+ 9. Qxf4 $1 Rxf4 10. Rh8+ $1 Qxh8 11. Ra3+ Ra7 12. Rxa7# {A study with a perfectly party-like starting position, a natural-looking introduction and an absolutely spectacular strike 6.Qf6!!! It captured my heart immediately!} 1-0

[Event "3.p Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Sprenger=J"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/R7/1P6/8/K4p2/3p4/1P3r2/k7 w - - 0 1"] [PlyCount "31"] [EventDate "2023"] 
 1. b4 (1. b7 $4 Rxb2 $19) 1... f3 $1 {Since immediate Kb1 or d2 fails to Rd7, Black threatens to advance with both pawns.} 2. b7 $1 (2. Kb3+ $2 Kb1 $11) (2. Kb5+ $2 Ra2 $11) 2... d2 (2... Ra2+ 3. Kb3 Rxa7 4. b8=Q $18) 3. Kb3+ Kb1 4. Ra1+ $1 Kxa1 5. Kc2 d1=Q+ 6. Kxd1 Rf1+ 7. Kd2 $1 ({thematic try} 7. Kc2 $2 Rc1+ $1 (7... f2 $2 8. b8=Q Rc1+ 9. Kb3 Rc3+ 10. Kxc3 f1=Q 11. Qa8+ Kb1 12. Qe4+ Ka1 13. Qd4 $18 {shows the idea of 7. Kc2.}) 8. Kb3 Rb1+ 9. Ka3 {position X} Rxb4 $1 10. Kxb4 f2 11. b8=Q f1=Q $10) 7... f2 8. b8=Q Rd1+ 9. Kc2 Rd2+ $1 (9... Rc1+ $6 10. Kb3 $1 Rb1+ 11. Ka3 {position X with the insertion of b7-b8=Q and f3-f2} f1=Q 12. Qe5+ $1) 10. Kxd2 f1=Q {The queen ending is drawish, but...} 11. Qe5+ Ka2 12. Qe2 $3 {Black's queen is in a dilemma: she must cover the c3 square against Kc3+, but when she does so, White can trade queens on that square.} Qf6 (12... Qh3 {loses in the same way:} 13. Qc4+ Kb2 14. Qc2+ Ka3 15. Qc3+ Qxc3+ 16. Kxc3) (12... Qf4+ 13. Kc3+ Ka3 14. Qa6#) 13. Qc4+ Kb2 14. Qc2+ $1 Ka3 15. Qc3+ Qxc3+ 16. Kxc3 {It is also possible to add a black pawn on f7 to the initial position. This leads to the same solution with some "Nachspiel" ( 16... Ka4 17. Kc4 f5 18. b5 Ka5 19. Kc5 f4 20. b6 etc. ) , but the author prefers the economic version. A study with a little less "special effects", but economical and elegant.} 1-0

[Event "4.p Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Nielsen=S"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "2q1br1n/Q4p1k/np6/8/1P4p1/P1NR2P1/1B6/6K1 w - - 0 1"] [PlyCount "67"] [EventDate "2023"] 
 {The middlegame position looks promising for White if not for the fact that he is a piece down.} 1. Rd2 {The star piece of the study.} (1. Nd5 $4 Qc2 $19) (1. Rd6 $2 Qc7 2. Qxb6 Qxb6+ 3. Rxb6 Nc7 $11) (1. Ne4 $2 Qc2 2. Qe7 Qxb2 $11) (1. Qe7 $2 Qe6 2. Qh4+ (2. Qxf8 Qe1+) 2... Kg8 3. Ne4 f6 4. Nxf6+ Rxf6 5. Qxf6 Qe1+ $11) 1... Qc7 (1... Nc7 2. Ne4 f6 3. Qxb6 Ne6 4. Rf2 Qd7 5. Nxf6+ Rxf6 6. Rxf6 $18) 2. Rh2+ (2. Qxa6 $4 $19 Qxg3+) (2. Nd5 $4 Qxg3+ $19) 2... Kg6 3. Ne2 $3 { With a passive sacrifice of the queen, White invites the Black king on a unwanted, and fairly long, journey into White's camp.} (3. Nd5 $2 Qxg3+ $11) 3... Qxa7 (3... Bb5 4. Nf4+ Kf5 5. Rh5+ Ke4 6. Re5+ Kf3 7. Ng2) 4. Nf4+ Kf5 ( 4... Kg5 $2 5. Rh5#) 5. Rh5+ Ke4 6. Re5+ Kf3 7. Bd4 (7. Ng2 $4 b5+ $19) 7... Kxg3 $1 (7... Qe7 $2 8. Rxe7 Kxg3 9. Ng2 Kh3 10. Nf4+ Kg3 11. Ne2+ Kh4 12. Bf6+ Kh5 13. Nf4+ Kh6 14. Re5 ({or} 14. Re2 g3 15. Re5) 14... Kh7 {eg} 15. Rh5+ Kg8 16. Rxh8#) 8. Ng2 (8. Nd5 Kh3 9. Rh5+ Kg3 10. Rf5 b5 11. Bxa7 Kh3 12. Nf4+ Kh4 13. Ng2+ Kh3 14. Bf2 {waste of time}) (8. Nh5+ Kh3 9. Nf4+ Kg3 10. Ng2 { waste of time}) 8... Kh3 (8... Qe7 9. Rxe7 Kh3 10. Nf4+ $18 {as in the line above.}) {Now White needs to transfer his rook to f5 to cover vital square on the f-file.} 9. Rh5+ Kg3 10. Rf5 b5 $1 {Black also makes a passive sacrifice of his queen. The point is to deflect the bishop from f6.} ({The alternative:}  10... Kh3 11. Nf4+ Kg3 (11... Kh4 12. Bf6+ Kg3 13. Ne2+ Kh3 14. Rh5#) 12. Ne2+ Kh4 13. Bf6+ Kh3 14. Rh5#) 11. Bxa7 Kh3 12. Bf2 $1 {Provoking g4-g3.} (12. Nf4+ {(?)} Kh4 (12... Kg3) 13. Ng2+ (13. Rh5+ Kg3 14. Rf5 Kh4 {and there is no bishop check on f6, so White must again transfer to the same mainline with} 15. Ng2+ Kh3 16. Bf2) 13... Kh3 14. Bf2 {waste of time}) 12... g3 13. Rg5 $1 gxf2+ 14. Kxf2 {White is still two pieces down, but is threatening 15. Rg3+ Kh2 16. Ne3 and mate with the rook on g1. Therefore 14...Bd7 seems forced to cover everything from h3.} Nxb4 $3 ({Black logical try} 14... Bd7 $2 15. Rg3+ Kh2 16. Nf4 ({change of plan as} 16. Ne3 Bh3 {no longer works}) 16... Rc8 {the only way to try disturbing White} (16... Rg8 17. Rxg8 Ng6 18. Nxg6 fxg6 19. Rxg6 Nb8 20. Rb6 Nc6 21. Rxb5 $18) 17. Rg2+ Kh1 18. Ne2 Rc2 19. Kg3 Rc3+ (19... Rxe2 20. Rxe2 $18) 20. Nxc3 $18) 15. Rg3+ $3 ({White logical try} 15. axb4 $2 Bd7 16. Rg3+ Kh2 17. Nf4 (17. Ne3 Bh3 $11) 17... Ra8 $1 18. Rg2+ Kh1 19. Ne2 Ra2 (19... Ra3 20. Ng3+ Rxg3 21. Kxg3 $18) 20. Kg3 $2 (20. Rg7 $11) (20. Rg5 $11) 20... Ra3+ $19 {compared to Black's try 14...Bd7 the rook can give this disturbing check from a3 instead of c3.}) 15... Kh2 16. Nf4 Nd3+ ({The only way to disturb the mating net.} 16... Bd7 17. Rg2+ Kh1 18. Rg5 $18 (18. Rg7 $18)) 17. Rxd3 (17. Nxd3 $4 Ng6 $1 $19) 17... Bd7 18. Rg3 (18. Rxd7 $2 Ng6 $11) 18... Ra8 (18... Rg8 19. Rxg8 $18) (18... Rc8 19. Rg2+ Kh1 20. Ne2 Rc2 21. Kg3 $18 { as already seen.}) 19. Rg2+ Kh1 20. Ne2 (20. Nh5 Rxa3 21. Ng3+ {transfers}) 20... Rxa3 {Compared to White's try 14. axb4? the a3-pawn is still on the board and Black won't have Ra2+.} 21. Ng3+ Rxg3 22. Kxg3 {White now plans to mate on the first rank.} f5 (22... Bh3 23. Kxh3 Ng6 {eg} 24. Kg3 f5 25. Ra2 { (or elsewhere on the 2. rank)} f4+ 26. Kh3 Kg1 27. Rg2+ Kf1 28. Rxg6) 23. Kf2 $1 {Change of plan. Now mate must be threatened on the h-file.} (23. Rd2 $5 f4+ 24. Kxf4 Bh3 $11) 23... f4 (23... Be8 24. Rg7 $1 ({Not} 24. Rg8 Ng6 $11) 24... Bg6 {(blocks g6 for the knight)} 25. Rg8 Nf7 26. Rxg6 Kh2 27. Rg7 $18) 24. Rg8 (24. Rg7 $2 Bh3 (24... Bf5 25. Rg5 Bh3 $11) 25. Rh7 Kh2 26. Rxh8 b4 27. Rh4 b3 28. Rxf4 b2 $11) 24... Nf7 (24... Ng6 25. Rxg6 Kh2 26. Rh6+ Bh3 27. Rh4 { is one move quicker}) 25. Rg7 Nh6 26. Rh7 Bh3 ({or} 26... Kh2 27. Rxh6+ Bh3 $18 ) 27. Rxh6 Kh2 28. Rh4 (28. Rb6 Bd7 29. Rh6+ $18 {waste of time}) 28... f3 ( 28... b4 29. Rxf4 b3 30. Rb4) 29. Kxf3 (29. Rb4 Be6 30. Rh4+ $18 {waste of time }) 29... b4 30. Kf2 $1 (30. Rxb4 $5 {and now surprisingly only} Bd7 $1 { draws for Black.}) 30... b3 31. Rb4 Be6 32. Rb6 $1 {Black is allowed to promote.} b2 (32... Bf5 33. Rxb3 {The rook will reach the h-file, pinning the bishop and winning. For instance:} Bc2 34. Rb2 Bf5 35. Rb5 Bg6 36. Rb6 Bf5 37. Rh6+ Bh3 38. Rh7 Kh1 39. Rxh3#) 33. Rxe6 b1=Q 34. Rh6# {The study was inspired by Chigorin's famous (missed) tactic 22...Rh1! in his game against Schiffers, Saint Petersburg 1897:  https://www.chessgames.com/perl/chessgame?gid=1792667  The solution to this study is remarkably long and complex, I found it hard to believe at first that the whole construct was viable at all. But: it is. And it's pretty to boot. I thought it was a bit of a pity that the queen on a7 "dies" without having made a single move.} 1-0

[Event "3.hm Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Arestov=P"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "b5k1/8/pN6/7K/3p1p2/8/4P3/8 w - - 0 1"] [PlyCount "21"] [EventDate "2023"] 
 1. Kg4 $1 (1. Nc4 $2 f3 2. exf3 d3 3. Kg4 a5 4. Kf4 Bd5 5. Nd2 a4 6. Ke3 a3 $19 ) (1. Nxa8 $2 f3 2. exf3 d3 $19) 1... f3 $1 (1... d3 2. exd3 f3 3. Kg3 $11) 2. exf3 (2. Kg3 fxe2 3. Kf2 Bf3 $1 $19) 2... a5 (2... d3 3. Na4 $1 Bc6 4. Nc3 $1 $11) 3. Kg3 $3 ({Try:} 3. Kf4 $2 Kf7 $1 {bBa8} 4. Nc4 a4 5. Na3 Ke6 6. Nc2 Kd5 $1 $19) 3... Bc6 (3... Kg7 4. Nxa8 a4 5. Nc7 d3 6. Kf2 a3 7. Ne6+ Kf6 8. Nc5 a2 9. Nb3 $11) (3... d3 4. Kf2 $11) 4. Kf4 $1 (4. Kf2 $2 Bb5 $1 5. f4 a4 $19) 4... Kg7 $1 (4... Kf7 5. Nc4 a4 6. Ne5+ {bBc6, fork, =.}) 5. Nc4 a4 6. Na3 $1 (6. Ke5 $2 d3 7. Kd4 a3 $1 8. Nxa3 d2 $19) 6... Kf6 7. Nc2 d3 (7... a3 8. Nxa3 $11) 8. Ke3 $3 (8. Nb4 $2 d2 $19) 8... dxc2 9. Kd2 a3 (9... Be4 10. fxe4 $11) 10. Kxc2 a2 11. Kb2 {draw. This study impresses with a very natural opening position as well as some surprising twists on the way to the saving fortress.} 1/2-1/2

[Event "5.hm Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Avni=A Minski=M"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/2P5/2p3b1/1pb5/8/1Bn2k2/1KN5 w - - 0 1"] [PlyCount "25"] [EventDate "2023"] 
 1. c7 (1. Kxc2 $2 Ke3 $19 {e.g.} 2. Nb3 Bd3+ 3. Kd1 Be7 4. Na5 Ba6 5. c7 Kd3) 1... Be6 (1... Na3+ 2. Bxa3 Ba6 3. c8=Q Bxc8 4. Nd3+ Ke2 5. Nxb4 $11) 2. Nd3+ Ke3 3. Nxc5 Na3+ (3... Bf5 4. c8=Q Bxc8 5. Kxc2 $11) 4. Bxa3 (4. Ka1 $2 Bf5 5. Bc1+ Kd4 6. Bxg5 Kxc5 $19) 4... Bf5+ 5. Ne4 $1 (5. Nd3 $2 bxa3 $19) (5. Ka1 $2 bxa3 $19) 5... Be7 $1 (5... Bxe4+ 6. Ka1 $1 (6. Ka2 $2 Bd5+ 7. Kb1 bxa3 8. c8=Q a2+ 9. Kc2 a1=Q 10. Qe6+ Kd4 (10... Be4+) ({but not} 10... Bxe6 $2 {stalemate}) 11. Qe3+ Kc4 $19) 6... Bf6+ 7. Bb2 $11) (5... bxa3 6. c8=Q Bxc8 7. Nxg5 $11) 6. c8=Q (6. Bxb4 $2 Bxb4 $19) ({also} 6. c8=R) ({but not} 6. c8=N $2 Bxe4+ $19) 6... Bxc8 7. Nc3 $1 (7. Nf6 $2 Bf5+ 8. Ka2 (8. Kc1 bxa3 9. Nd5+ Kd4 (9... Kd3) 10. Nxe7 Kc3 $19) 8... Be6+ 9. Kb1 bxa3 $19) 7... Kd4 (7... bxc3 8. Bxe7 $11) ( 7... bxa3 8. Nd5+ $11) 8. Ne2+ Ke3 9. Nc3 Bf5+ 10. Ka1 Kd4 11. Ne2+ Ke3 12. Nc3 Be6 (12... Kd2 13. Nd5 bxa3 14. Nxe7 $11) 13. Bb2 $11 {It is amazing how many white pieces "voluntarily" move to threatened squares in this study!} 1/2-1/2

[Event "2.c Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Egorov=E"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "7k/p2P4/7p/b6K/3p1N2/8/4P3/8 w - - 0 1"] [PlyCount "35"] [EventDate "2023"] 
 1. Kg6 $1 (1. Kxh6 $2 Kg8 2. Kg6 (2. Ne6 d3 3. exd3 Kf7 $11) 2... Kf8 3. Kf6 Bd8+ 4. Ke6 a5 5. Kd6 Be7+ 6. Kd5 Bd8 7. Kd6 Be7+ 8. Ke5 Bd8 9. Kd6 Be7+ 10. Kd5 Bd8 11. Ng6+ Kf7 12. Ne5+ Ke7 $11) (1. Ne6 $2 Kh7 $11 (1... Kg8 2. Kg6 $18) ) 1... Kg8 (1... h5 2. Kf7 $1 ({Thematic try} 2. Kxh5 $2 Kg7 3. Ne6+ Kf6 4. d8=Q+ Bxd8 5. Nxd8 $11 {King on f6!}) 2... Kh7 (2... h4 3. Ng6+ Kh7 4. Nxh4 $18 ) (2... Bb6 3. Nxh5 (3. Ne6 $2 d3 $1 $11) 3... a5 4. Nf4 a4 5. Nd5 Ba5 6. Nb4 $1 a3 7. Nc6 Bb6 8. Nxd4 $18) 3. Nxh5 Kh6 4. Ng7 $1 Kg5 5. Ke6 Kf4 6. Kd5 $18) 2. Ne6 h5 3. Kxh5 Kf7 4. d8=Q Bxd8 5. Nxd8+ {King on f7!} Kf6 (5... Ke7 6. Nc6+ Kd6 7. Nxd4 Kc5 8. Nc2 $18) 6. Nc6 Ke6 (6... d3 7. exd3 Kf5 8. Nxa7 $18) (6... Kf5 7. Nxd4+ Kf4 8. Nc2 $1 a5 9. Kh4 a4 10. Kh3 $18) 7. Nxd4+ Kd5 8. Nc2 $1 a5 9. Kg5 $3 {Reti} ({Thematic try} 9. Kg4 $2 Kc4 $1 10. e4 (10. Na3+ Kb3 11. e4 Kxa3 12. e5 a4 13. e6 Kb2 14. e7 a3 15. e8=Q a2 $11) (10. Kf4 Kc3 $1 $11) 10... Kd3 11. e5 Kxc2 12. e6 a4 13. e7 a3 14. e8=Q a2 15. Qe5 Kb1 $11) 9... Kc4 (9... a4 10. Kf4 Kc4 11. Ke3 $1 ({Thematic try} 11. Ke4 $2 Kc3 12. Na3 Kb3 13. Nb1 Kc2 14. Na3+ Kb3 15. Nb5 (15. Kd3 Kxa3 16. Kc3 Ka2 17. e4 a3 18. Kc2 Ka1 19. e5 a2 20. e6 $11) 15... Kb4 $1 (15... Kc4 $2 16. Nd6+ Kc5 17. Nf5 $1 a3 (17... Kc4 18. Ke3 a3 19. Kd2 a2 20. Ne3+ Kb3 21. Nc2 $18) 18. Kd3 a2 19. Nd4 a1=Q 20. Nb3+ $18) 16. Nd4 Kc4 17. Nc2 Kc3 $11 {Positional draw}) 11... Kc3 12. Nd4 $1 { zz} (12. Na3 $2 Kb3 $1 13. Nb1 Kc2 14. Na3+ Kb3 15. Nb5 Kb4 $1 16. Nd4 Kc3 $11 {zz}) 12... Kc4 13. Nf5 $1 a3 14. Kd2 a2 15. Ne3+ Kc5 16. Nc2 $18) 10. Na3+ Kb3 (10... Kb4 11. Nb1 $1 a4 12. e4 Kb3 13. e5 Kb2 14. Nd2 Kc2 15. Nc4 (15. e6 $2 a3 16. e7 a2 17. e8=Q a1=Q $11) 15... Kb3 16. e6 $18) 11. Nb5 $1 Kb4 12. e4 $1 Kxb5 13. e5 a4 14. e6 Kc6 15. Kf6 a3 16. e7 Kd7 17. Kf7 a2 18. e8=Q+ { Excelsior! White had to work hard for the full point. Especially his king is doing a great job!} 1-0

[Event "3.c Prusikin 45 JT 2023"] [Site ""] [Date "2023"] [Round ""] [White "Egorov=E"] [Black ""] [Result "1-0"] [SetUp "1"] [FEN "8/1p4p1/8/3r1kPP/8/5K1p/8/2R5 w - - 0 1"] [PlyCount "41"] [EventDate "2023"] 
 1. h6 $1 (1. Rc7 $2 Rb5 $1 (1... b5 $2 2. h6 gxh6 3. gxh6 h2 4. Kg2 $11) 2. h6 (2. Kg3 Kxg5 3. Kxh3 Kh6 $1 4. Kg4 Rg5+ 5. Kf4 b5 $19) 2... gxh6 3. gxh6 Kg6 4. Kg3 Rb3+ 5. Kh2 Kxh6 $19) (1. Rb1 $2 b5 $1 (1... Kxg5 $2 2. Rxb7 Kh4 3. Kf2 Rg5 4. h6 gxh6 5. Rb4+ $11) 2. h6 Kg6 $1 {Echo} (2... gxh6 3. gxh6 Kg6 4. Kg3 $11) 3. hxg7 Kxg7 4. Kg3 Rxg5+ 5. Kxh3 Kf6 $19) (1. Kg3 $2 Kxg5 2. Kxh3 Kh6 $1 $19 { Echo} (2... Kxh5 3. Rc7 $11)) 1... gxh6 2. gxh6 Kg6 (2... Rd3+ 3. Kf2 Rd6 4. Rc5+ $1 Kg4 5. Rc4+ Kg5 6. Rc5+ Kg4 7. Rc4+ Kg5 8. Rc5+ Kxh6 9. Rc3 $1 h2 10. Kg2 $11) 3. Rb1 b5 (3... Rh5 4. Rb6+ $11) 4. Kg3 Rh5 5. Kh2 Kxh6 6. Rg1 $1 Rc5 $1 (6... b4 7. Rb1 Rh4 8. Rg1 Kh5 9. Rg8 Kh6 10. Rg1 Rh5 11. Rb1 Rh4 12. Rg1 $11) (6... Rg5 7. Rf1 $1 {Echo} Rh5 8. Rg1) 7. Rf1 $3 {Echo} (7. Rg4 $2 Rc4 $1 (7... Kh5 8. Rb4 $11) 8. Rg1 (8. Rg8 Rc3 9. Rb8 Rb3 $19) 8... Kh5 9. Rb1 (9. Kxh3 Rh4+ 10. Kg3 Rg4+ 11. Kf2 Rxg1 $19) 9... b4 10. Kxh3 Kg5 11. Kg3 Kf5 12. Kf3 Ke5 13. Ke3 Kd5 $19) (7. Kxh3 $2 Rh5+ 8. Kg3 Rg5+ 9. Kf2 Rxg1 10. Kxg1 b4 $19) 7... Rh5 8. Rg1 Rc5 9. Rf1 Kg5 10. Kxh3 Rf5 11. Kg2 $1 Rxf1 12. Kxf1 Kf5 13. Ke1 Ke5 14. Kd1 Kd5 15. Kc1 Kc5 16. Kb1 Kb4 17. Kb2 Ka4 18. Ka2 Kb4 19. Kb2 Kc4 20. Kc2 Kb4 21. Kb2 $11 {The well-known theoretical ending is preceded by an interesting and struggle game in the rook endgame! Fascinating how many nuances there can be in an elementary-looking rook ending!} 1-0