www.arves.org - Phenix 2022

Studies provisionally awarded for the French magazine Phenix 2022 tournament.

[Event "Phenix 2022"] [Site ""] [Date "2022.09"] [Round ""] [White "Osintsev, Sergey"] [Black "1st Prize"] [Result "1-0"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "2R5/8/4p3/R2P3k/K7/p4p2/3n4/3r4 w - - 0 1"] [PlyCount "21"] [EventDate "2022"] 
 1. d6+ $1 (1. dxe6+ $2 Kg6 $1 (1... Kg4 $2 2. e7 (2. Rg8+) 2... Re1 3. e8=Q Rxe8 4. Rxe8 f2 5. Rg8+ $1 Kf4 6. Rf8+ Ke3 7. Re5+ $18) 2. e7 Re1 3. e8=Q+ Rxe8 4. Rxe8 f2 $11 (4... a2 5. Kb4 f2 $11)) 1... e5 $1 (1... Kg4 2. d7 a2 3. Kb4 $1 (3. Rg8+ $2 Kf4 4. Rf8+ Kg3 5. Kb4 Nb3 $1 6. Kxb3 Rxd7 7. Rxa2 e5 $1 8. Kc4 e4 $1 9. Ra3 Kg2 $1 10. Rg8+ Kf1 $1 $11) 3... Nb3 $1 4. Kxb3 Rxd7 5. Ra4+ $1 (5. Rg8+ $2) 5... Kg3 6. Rg8+ Kf2 7. Rxa2+ Ke3 8. Re8 $1 Rd3+ 9. Kc4 Rd4+ 10. Kc5 Rd5+ 11. Kc6 $18) (1... Kg6 2. d7 Ne4 3. Rg8+ $1 Kf7 4. d8=Q Rxd8 5. Rxd8 f2 6. Ra7+ $1 (6. Raa8 $2 a2 7. Kb4 Nf6 $1 8. Ra7+ Kg6 9. Rd1 Nd5+ 10. Kb3 Ne3 $11) 6... Kg6 7. Rg8+ $1 Kh6 8. Rf8 a2 9. Kb4 $1 $18 ({Not} 9. Kb3 $2 Nd2+ 10. Kc3 f1=Q 11. Rxf1 Nxf1 $11) ({Not} 9. Kb5 $2 Nd6+ 10. Kc5 Nf5 11. Rh8+ Kg6 12. Rh1 Ng3 $11 (12... Ne3))) 2. d7 ({By sacrificing a pawn, Black wanted to distract the Rook from the a-file} 2. Rxe5+ $2 Kg6 (2... Kg4) 3. d7 a2 $11) 2... Ne4 $1 (2... Nc4 3. Rxc4 $1 $18) 3. d8=Q ({Not} 3. Rxe5+ $2 Kg6 4. Kxa3 f2 5. Rg8+ Kf7 $11 (5... Kh7 $2 6. Rf8 Kg7 7. Rf4 $1 Rxd7 8. Rexe4 $18)) 3... Rxd8 4. Rxd8 ({Not} 4. Rxe5+ $2 Kg6 $1 (4... Ng5 $2 5. Rxd8 $18) 5. Rxd8 a2 (5... f2) 6. Rg8+ (6. Rd1 $4 Nc3+ $19) 6... Kf6 $11) 4... f2 (4... a2 5. Kb4 (5. Kb5) 5... f2 6. Rf8 $18) 5. Rf8 ({Not} 5. Rxe5+ $2 Kg6 $1 (5... Kh6 $2 6. Re6+ $1 Kg5 7. Rg8+ Kf5 8. Rc6 $1 $18) 6. Re6+ Kf7 $11) 5... Kg5 $3 (5... Kg6 6. Rf3 $1 $18) 6. Rxe5+ $1 (6. Kxa3 $2 Nf6 {(threat)} 7. Rxe5+ Kg6 8. Re6 f1=Q $11) ({After} 6. Rf3 $2 {the black King will outwit the Rook and win the decisive tempo} Kg4 $1 7. Rf8 Kg3 {Knight's domination over Rooks} 8. Ra7 (8. Kxa3 Nd2 $1 9. Ra7 f1=Q 10. Rg7+ Kh2 $1 11. Rh8+ Qh3+ $11) 8... Kg2 9. Kb4 (9. Kxa3 Ng3 10. Rg7 e4 $1 11. Kb3 e3 12. Kc2 e2 $11 {the e-pawn saves Black from defeat}) 9... Ng3 10. Rxa3 e4 11. Re3 (11. Rc3 Ne2 $1 $11) 11... f1=N $3 $11 (11... f1=Q $2 12. Rxg3+ $18) (11... Nh5 $6 12. Re2 e3 13. Kc3 $1 Kg1 14. Rxe3 $1 f1=Q 15. Rxf1+ Kxf1 16. Rh3 $1 $18 {Rook's domination over Knight})) (6. Rg8+ $2 Kf4 (6... Kh4 7. Rf8 Kg3) 7. Rf8+ Kg3 $11) ({defense against the threat} 6. Ra6 $2 Nc5+ $1 $11 {refuted by fork}) 6... Kg6 $1 7. Rxe4 $1 (7. Rf3 $4 a2 $19) (7. Kxa3 $2 Nf6 8. Re6 f1=Q $11) (7. Re6+ $2 Kg7 8. Rxe4 a2 9. Ref4 a1=Q+ $11) (7. Rd5 $2 Nc3+ $11) 7... a2 8. Rg4+ $1 Kh5 {and how to neutralize passed pawns?} 9. Rg1 $3 (9. Rh8+ $2 Kxg4 10. Rh1 $11) 9... fxg1=Q 10. Rh8+ Kg4 11. Rg8+ $18 1-0

[Event "Phenix 2022"] [Site ""] [Date "2022.08"] [Round ""] [White "Pasman, Michael"] [Black "3rd Prize"] [Result "1/2-1/2"] [Annotator "CH"] [SetUp "1"] [FEN "1n6/8/Pp6/8/RK6/5p2/4pN2/n1k1r3 w - - 0 1"] [PlyCount "29"] [EventDate "2022"] 
 1. Kc3 $1 (1. Rxa1+ Kd2 2. Ra2+ Ke3 3. a7 Nc6+ $19) (1. a7 Nc6+ 2. Kc3 Kb1 3. Rxa1+ Kxa1 4. a8=Q+ Kb1 $19 5. Kd2 Rc1 6. Qe8 e1=Q+) 1... Nc2 (1... Nb3 {CH} 2. a7 Rd1 3. Kxb3 e1=Q $2 4. Ra1+ Kd2 5. Rxd1+ Qxd1+ 6. Nxd1 $18) (1... Kb1 2. Rb4+ Kc1 3. Ra4) 2. Nd3+ (2. a7 $2 Rd1 3. Re4 Nd7 4. a8=Q Nf6 5. Re5 Nd5+ 6. Kb3 Rd4 $3 $19) 2... Kb1 3. a7 (3. Nxe1 f2 4. Nxc2 e1=Q+ 5. Kb3 Qe6+ $19) 3... Nc6 (3... Rd1 4. axb8=Q Rxd3+ 5. Kxd3 e1=Q 6. Qxb6+ $11) 4. Ra2 $1 (4. a8=Q $2 Rc1 $1 5. Qe8 f2 6. Qxe2 (6. Nxf2 e1=Q+) 6... N2d4+ 7. Nxc1 Nxe2+ 8. Nxe2 f1=Q $19) 4... Nxa7 5. Rb2+ Ka1 6. Kxc2 {Black was forced to give his knight, but he will receive another one..} f2 (6... Nc6 7. Rxb6 Nd4+ 8. Kc3 f2 (8... Rc1+ 9. Kxd4) 9. Ra6+ Kb1 10. Rb6+) 7. Rxb6 Rc1+ $1 8. Nxc1 e1=N+ $1 {Phenix} 9. Kc3 f1=Q 10. Nb3+ Ka2 11. Nc1+ Ka3 12. Rb3+ Ka4 13. Rb4+ Ka5 14. Nb3+ Ka6 15. Nc5+ {Perpetual check} 1/2-1/2

[Event "Phénix 2022"] [Site ""] [Date "2021"] [Round ""] [White "Nielsen, Steffen and Minski, Martin"] [Black "2nd Honorable Mention"] [Result "1-0"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "k3K3/2R5/3r4/4p3/1n6/7B/1P6/8 w - - 0 1"] [PlyCount "17"] [EventDate "2022"] 
 1. Bg2+ e4 (1... Kb8 2. Rb7+ Kc8 3. Rxb4 $18) (1... Nd5 2. Rc5 {/d7+-}) 2. Bxe4+ Nd5 $1 3. Rc6 $3 (3. Rc5 $2 {/d7?} Re6+ 4. Kd8 Rxe4 $11) 3... Nf6+ (3... Rxc6 4. Bxd5 Kb7 5. Kd7 $18) 4. Ke7 Rd4 (4... Nxe4 5. Rxd6 Nxd6 6. Kxd6 $18) 5. Bf3 $1 (5. Bh1 $2 Nd5+ 6. Kd6 (6. Ke6 Nf4+ {see main line}) 6... Ne3+ $1 7. Ke5 Rd1 8. Bf3 Rf1 $11 {par exemple} 9. Kf4 Ng2+ 10. Kg3 Nh4 11. Rc3+ (11. Bd5 Nf5+) 11... Rxf3+) 5... Nd5+ (5... Ka7 6. Rxf6 Rb4 7. Rf8 $1 Rxb2 8. Ra8+ Kb6 9. Rb8+ $18) (5... Ng8+ 6. Kf7 $1 $18 Rf4+ 7. Rf6+ Rxf3 8. Rxf3 $18) (5... Ne4 6. Re6 $18 Ka7 7. Rxe4 $1) 6. Kd6 $1 (6. Ke6 $2 Nf4+ $1 7. Ke5 Rb4 $1 8. Rc4+ Ka7 9. Rxb4 (9. Rxf4 Rxb2 $11) 9... Nd3+ 10. Kd4 Nxb4 $11) 6... Nb4+ (6... Ne3+ 7. Ke5 $1 (7. Kc7 $2 Ka7 8. Rc5 Rc4 $11) (7. Kc5 $2 Rc4+ $11) 7... Rd2 8. Rd6+ {/c2+} Ka7 9. Rxd2 Nc4+ 10. Kd4 Nxd2 11. Bg2 $1 Nb3+ (11... Kb6 12. Kc3 $18) 12. Kc4 Na5+ (12... Nc1 13. Bf1 $18 {Idea : Kb4-Ka3-b4 and Kb2}) 13. Kb4 $18 {For example} Kb6 14. Bd5 Ka6 15. Kc5 Nb7+ 16. Bxb7+) (6... Nf4+ 7. Kc5 Rd8 8. Rf6+ $18) 7. Kc5 (7. Ke5 $2 Rd3 $11) 7... Rf4 8. Rc8+ (8. Rf6+ $2 Ka7 {/b8} 9. Rxf4 Nd3+ $11 {fork}) 8... Ka7 9. Ra8# {model mate} 1-0

[Event "Phenix 2022"] [Site ""] [Date "2022"] [Round ""] [White "Arestov, Pavel and Keith, Daniel"] [Black "3rd-4th Honorable Mention"] [Result "1-0"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "5n2/P7/8/8/bR2K3/4p3/2pk4/8 w - - 0 1"] [PlyCount "21"] [EventDate "2022"] 
 1. Rd4+ (1. a8=Q $2 c1=Q 2. Qd5+ Ke1 $1 $10 (2... Ke2 $2 3. Qh5+ Kf2 4. Qh2+ $18)) 1... Ke2 2. Rc4 (2. a8=Q $2 c1=Q $10) 2... Bb3 $1 (2... Nd7 3. a8=Q Nb6 4. Qa6 Nxc4 5. Qxc4+ Kf2 6. Qc5 $18) (2... Bb5 3. Rxc2+ $18) 3. Rc6 $1 ({Try:} 3. Rc3 $2 Nd7 4. a8=Q (4. Kd4 Nb6) 4... Bd5+ $1 5. Kxd5 Nb6+ 6. Kd4 (6. Ke4 Nxa8 7. Rxc2+ Kd1 8. Kd3 Nc7 $1 9. Rxc7 e2 10. Ra7 e1=N+ $10) 6... Nxa8 7. Rxe3+ Kd2 $10) 3... Nd7 $1 4. a8=Q c1=Q 5. Rxc1 (5. Qa6+ $2 Bc4 $1 6. Rxc4 Qh1+ $10) 5... Bd5+ $1 6. Kxd5 (6. Qxd5 $2 Nf6+ 7. Kd4 Nxd5 $10) 6... Nb6+ 7. Kd4 $1 ({Try:} 7. Ke4 $2 Nxa8 8. Rc2+ $1 (8. Rc3 Kd2 9. Rxe3 Nb6 $1 (9... Nc7 $2 10. Rb3 $1 Ne6 11. Rb5 $18) 10. Rb3 Na4 $10 {we see the difference between Ke4 and Kd4}) 8... Kd1 9. Kd3 Nc7 $1 10. Rxc7 e2 11. Ra7 e1=N+ $10) 7... Nxa8 8. Rc3 Nc7 $1 (8... Kf2 {/Kd2/Nb6} 9. Rxe3 $18) (8... Nb6 9. Rxe3+ Kd2 10. Rb3 Na4 11. Rb4) 9. Rxe3+ $1 (9. Rxc7 $2 Kd2 10. Ra7 e2 11. Ra2+ Kd1 12. Kd3 e1=N+ $10) 9... Kd2 10. Re5 $1 (10. Re7 $2 Nb5+ $10) (10. Rb3 $2 Ne6+ 11. Kd5 (11. Ke5 Nc5) 11... Nf4+ $10) 10... Na6 11. Kc4 1-0

[Event "Phénix 2022"] [Site ""] [Date "2022.04.19"] [Round ""] [White "Sprenger, Jan"] [Black "1st Commendation"] [Result "1-0"] [Annotator "JS"] [SetUp "1"] [FEN "1KR5/6R1/k6P/5N2/8/3p4/8/4b2q w - - 0 1"] [PlyCount "29"] [EventDate "2022"] 
 {The study shows the fight of two rooks against queen in two phases. The first phase is a sharp pawn race with mutual promotion and sacrifices, the second phase starts by a white rook promotion and ends with a well-known final by Rinck (1940, Revista de Romana de Sah, +3200.00h8e8) without any additional material.} 1. Ra7+ $1 {First, White needs to displace the black king to avoid the Bg3+/Qb1+ counterplay---even at the price of choosing a passive square for the rook.} ({thematic try} 1. Rd8 $2 Bg3+ $3 {shows the Black counterplay:} 2. Nxg3 (2. Rxg3 $4 Qb7#) 2... Qb1+ 3. Ka8 Qb6 $1 4. Rb8 (4. Rdd7 Qc6+ 5. Kb8 Qb6+ 6. Kc8 Qc5+ $1 $132) (4. Rxd3 Qc6+ 5. Kb8 Qb5+ $10) 4... Qc6+ 5. Rgb7 d2 6. h7 d1=Q 7. h8=Q Qg1 $1 $19 ({or} 7... Qxb7+ 8. Rxb7 Qd8+ 9. Qxd8 $10 {stalemate})) (1. h7 $2 {does not do anything against the threat of perpetual:} Qh2+ 2. Ka8 {Rgc7 or Rcc7 is met by Ba5} Qh1+ 3. Kb8 Qh2+ $10) 1... Kb6 $1 {The king needs to go to b6 to restrain the wRa7.} 2. h7 (2. Rd8 $2 Bb4 $1 3. h7 Qh2+ 4. Ka8 Qh1+ $10) 2... d2 (2... Bd2 3. Rc4 $1 Qh2+ 4. Rac7 Bf4 5. Rb4+ $1 Ka6 6. Rxf4 $18 {etc}) 3. Rd8 d1=Q $1 {Prepares a inventive defense combining stalemate and perpetual ideas.} 4. Rxd1 Bg3+ 5. Nxg3 Qxd1 6. Rb7+ $1 (6. h8=Q $2 Qd6+ 7. Ka8 Qc6+ {/Dd5+} 8. Kb8 Qd6+ $10 {perpetual}) 6... Ka6 $1 7. h8=R $3 {The pointe of the study.} ({thematic try} 7. h8=Q $2 Qd8+ $1 ({or} 7... Qd6+ 8. Ka8 Qd8+ $1) 8. Qxd8 {stalemate}) 7... Qd6+ 8. Ka8 Qxg3 9. Rh6+ Ka5 10. Rh1 {From here, the finish, and especially the key move 12. Rf1, is known since Rinck 1940.} Qg8+ (10... Qe5 11. Ra1+ $1 Qxa1 12. Ra7+) 11. Ka7 Qa2 12. Rf1 $1 Qa3 (12... Qa4 13. Rf5+ $1 {self-block}) 13. Ka8 $1 Qc3 14. Ra1+ $1 Qxa1 15. Ra7+ 1-0

[Event "Phenix 2022"] [Site ""] [Date "2022"] [Round ""] [White "Ilincic,Borislav and Djurasevic Branislav"] [Black "2nd Commendation"] [Result "1/2-1/2"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "8/8/2n3p1/6P1/4p1PK/p5PP/1P3R2/k7 w - - 0 1"] [PlyCount "17"] [EventDate "2022"] 
 {[%evp 0,17,-197,-208,-216,-649,-358,-1072,-639,-640,-640,-640,-640,-640,-640,-640,-640,-314,0,-63]} 1. Rf1+ $1 ({Thematic try:} 1. b4 $2 e3 $1 2. Rf1+ Kb2 $1 3. b5 e2 $1 4. Rf2 Nd4 5. b6 Kc3 $1 {or 5....Kc1} 6. b7 e1=N $3 $19 {with mate}) 1... Ka2 $1 (1... Kxb2 $2 2. Rb1+ {draw by perpetual checks}) 2. b4 $1 e3 3. b5 $1 (3. Re1 $2 Nd4 $1 4. Rxe3 Nc2 $1 (4... Kb2 $2 5. b5 a2 6. b6 a1=Q 7. b7 Qa7 (7... Nf3+ $2 8. Rxf3 {8.....Qh8#??}) 8. b8=Q+ $11 {8....Qh7# ??}) 5. Re6 $5 (5. Re8 {or 5.Re5} Kb1 $1 (5... Kb3 $2 6. b5 Nd4 7. Re3+ $1 $11) 6. b5 a2 7. Ra8 Ne1 $19) 5... Kb3 $1 (5... Kb1 $4 6. Rxg6 a2 7. Ra6 $18) (5... Kb2 $2 6. b5 a2 7. b6 a1=Q 8. b7 $11) 6. Rxg6 (6. b5 a2 7. b6 a1=Q 8. b7 Qh8# $1) 6... a2 7. Ra6 Na3 $1 8. g6 a1=Q 9. Ra7 Qf6+ $19 {or 9....Qh8+ -+}) 3... e2 4. Rf2 Nd4 5. b6 Ka1 $5 (5... Nf3+ 6. Rxf3 e1=Q 7. b7 Qe7 8. Rf2+ $1 Ka1 9. Rf1+ $11 {Perpetual check.}) 6. Rf6 $1 {The point!} (6. b7 $2 e1=N $3 $19) 6... e1=Q (6... e1=N $4 7. Rxg6 $18) 7. b7 Qb1 8. b8=Q $1 Qxb8 9. Rf1+ {Black could not escape from the perpetual white checks. Excelzior and minor promotion. A classic white king cage is used, but the rest of the content is new.} 1/2-1/2

[Event "Phenix 2022"] [Site ""] [Date "2022.08"] [Round ""] [White "Arestov, Pavel and Hlinka,Michal"] [Black "3rd-5th Commendation"] [Result "1/2-1/2"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "4r3/N3P2K/2P5/5R2/8/8/1n1p4/k7 w - - 0 1"] [PlyCount "29"] [EventDate "2022"] 
 1. Ra5+ $1 {A far prescient move, try} (1. Rf1+ $2 d1=Q 2. Rxd1+ Nxd1 3. Nb5 Rxe7+ 4. Kg8 {pos. X with b.Ka1} Re8+ 5. Kf7 Rc8 6. c7 Nc3 $1 7. Nxc3 Rxc7+ $19) 1... Kb1 2. Rd5 d1=Q (2... Rxe7+ 3. Kg8 {main line}) 3. Rxd1+ Nxd1 4. Nb5 $1 {pos. X1 with b. Kb1} Rxe7+ 5. Kg8 $1 (5. Kg6 $2 Re6+) 5... Re5 $1 (5... Re8+ 6. Kf7 Rc8 7. c7 $11 {Nc3 isn't coming out anymore?! for 8.Nxc3 chess!}) 6. Na7 (6. c7 Rc5 7. Kf7 Nc3) 6... Rc5 (6... Re7 7. Nb5 Re5 8. Na7 Rc5) 7. Kf8 $1 {try} (7. Kf7 $2 Ra5 $1 8. Nc8 Nc3 $19 9. Ke6 Rh5 10. Ne7 Nb5 11. Kd7 Rh7 12. Kd8 Kc2 $19 {E.G.} 13. Nd5 Rh5 14. Ne7 Rc5) 7... Nc3 8. Ke8 $1 {try} (8. Ke7 $2 Ra5 9. Kd8 $1 ({ajout} 9. c7 $2 Nd5+ $1) 9... Nd5 10. Nc8 Kc2 $19 11. Nd6 Rc5 12. Kd7 Kd3 13. Nb7 Rc1 14. Na5 Ke4) 8... Nd5 9. Kd7 Kc2 10. Kd6 Ra5 11. Nc8 $11 {(No dual because not in the author's solution. This is a personal addition to explain to the reader. Black cannot block the advance of the P to bring his K closer. For example :} Kd3 12. c7 Kc4 13. Ne7 $1 Ra6+ 14. Kd7 $1 Nb6+ 15. Kd8 {)} 1/2-1/2

[Event "Phenix 2022] [Site ""] [Date "2022"] [Round ""] [White "Hlinka, Michal and Kekely, Luboš"] [Black ""] [Result "1/2-1/2"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "7k/6p1/8/6KP/3pr2p/R7/8/8 w - - 0 1"] [PlyCount "29"] [EventDate "2021"] 
 {Warning: the two comments are not made by the authors. They were made by me (D. Capron) to help the understanding of the readers and solutionists. I left them voluntarily, the authors of the study are not responsible for them.} 1. h6 $1 {If Black plays Kh7, at best White will take the "h" and "d" pawns at the price of the exchange of rook and knight and Black will win the K + P"g" endgame.} (1. Rh3 $2 Kh7 2. Rd3 Re5+ 3. Kxh4 Rd5 $19) 1... gxh6+ 2. Kf5 $1 (2. Kxh6 $2 Kg8 3. Kg6 Re6+ 4. Kg5 Kf7 5. Kxh4 Kf6 6. Kg4 Ke5 $19) 2... Re3 3. Ra4 Rd3 (3... d3 4. Rxh4 Kg7 5. Rh1 $11 {of course, if Black had a "g" P instead of "h" P he would win easily.}) 4. Kg6 $1 Rg3+ 5. Kxh6 d3 (5... h3 6. Rxd4 h2 7. Rd1 Kg8 (7... Rg1 8. Rd8+ Rg8 9. Rd1 $11) 8. Rh1 Rg2 9. Kh5 $11) 6. Rxh4 Kg8 (6... d2 7. Rd4 {as main}) 7. Rf4 $1 (7. Rd4 $2 Kf7 8. Kh5 Ke6 9. Kh4 Ke5 10. Rd8 Re3 $19) 7... d2 8. Rd4 Rg2 {Consider the position after 8:..Rg2. The real reason for the very fine move that follows is not as obvious as one might think. Let's analyze this position: To draw, the wK must reach f3, while to win the bK must reach e4. The bR bein on g2, the wK will have to go through both sides of the triangle (h6h3f3) while the bK can come directly to e4. One might think that Rd7 forcing Kg8e8e4 wins a tempo, but it is not so, because if the new bK walk is two moves longer, White loses two moves by playing Rd7 and then pushing the rook when it is under attack. In fact, the real idea of this manoeuvre is to move the R from d4 to d3 "for free"! How to move R from d4 to d3 for free? By playing Rd7!} 9. Rd7 $3 (9. Kh5 $2 Kf7 10. Kh4 Ke6 11. Kh3 Ke5 $3 12. Rd8 Re2 $19) 9... Kf8 10. Kh5 Ke8 11. Rd3 $1 (11. Rd4 $2 Ke7 12. Kh4 Ke6 13. Kh3 Ke5 14. Rd8 Re2 $19) 11... Kf7 12. Kh4 Kf6 13. Kh3 Re2 14. Kg4 $3 (14. Kg3 $2 Re3+ $1 $19) 14... Ke5 15. Kf3 1/2-1/2

[Event "Phénix 2022"] [Site ""] [Date ""] [Round ""] [White "Jarl Henning Ulrichsen"] [Black ""] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/8/8/1P5P/8/8/2k4K/r7 w - - 0 1"] [PlyCount "25"] 
 1. Kg3 (1. Kh3 {?} Kd3 {!} 2. Kg4 Ke4 3. Kg5 Ke5 4. Kg6 Ke6 5. h6 Rg1+ 6. Kh7 Kf6 7. b6 Rb1 8. Kg8 Rxb6) (1. b6 {?} Ra5) (1. h6 {?} Ra8 2. Kg3 Rh8) 1... Kd3 2. Kf4 {!} ({White loses after} 2. Kg4 {?} Ke4 {see 1:Kh3?}) 2... Kd4 (2... Rh1 3. Kg5 Ke4 4. b6 Ke5 5. b7 {(See solution.)}) 3. b6 {!} (3. Kg5 {?} Ke5 4. b6 Rg1+ 5. Kh6 Kf6 6. b7 Rb1) (3. Kf5 {?} Rh1 4. Kg6 Ke5 5. h6 Ke6 6. h7 Rg1+ 7. Kh6 Kf7 8. h8=N+ Kf6) (3. h6 {?} Rh1 4. Kg5 Ke5 5. Kg6 Ke6 6. Kg7 Ke7 7. h7 Rg1+ 8. Kh6 Kf7 $1) 3... Rf1+ 4. Kg5 Ke5 5. b7 {!} (5. Kg6 {? loses to} Rg1+ 6. Kf7 Kf5 7. h6 Rd1 $3 8. Ke7 Kg6 $1) 5... Rg1+ (5... Rb1 6. h6 {!} ({Not} 6. Kg6 {?} Kf4 {!} 7. h6 Rb6+ 8. Kg7 ({Or} 8. Kh5 Rxb7 9. Kg6 Rb6+ 10. Kg7 Kg5) 8... Kg5 9. h7 Rxb7+ 10. Kg8 Kg6) 6... Rg1+ 7. Kh4 $1 {(7.Kh5? Kf5)} Rg8 8. h7 Rb8 9. Kg5 Ke6 10. Kg6 {and White draws.}) 6. Kh6 Rb1 7. Kg5 {!} (7. Kg6 {?} Kf4 {!} 8. h6 Rb6+ 9. Kg7 Kg5 10. h7 Rxb7+ 11. Kg8 Kg6 {and Black wins.}) 7... Ke6 8. Kg6 (8. h6 {?} Kf7) 8... Ke7 9. Kg7 (9. h6 {?} Kf8 10. h7 Rb6+ 11. Kf5 Kg7) 9... Rxb7 10. h6 Ke6+ 11. Kg6 {!} (11. Kg8 {?} Kf6) 11... Rb1 12. Kg7 (12. h7 {?} Rg1+ 13. Kh6 Kf7 14. h8=N+ Kf6 {and Black wins.}) 12... Rg1+ 13. Kf8 {!} 1/2-1/2

[Event "Phénix 2022"] [Site ""] [Date ""] [Round ""] [White "Henning Ulrichsen, Jarl"] [Black ""] [Result "1/2-1/2"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "7K/8/1pp4k/3p4/8/8/4B3/8 w - - 0 1"] [PlyCount "21"] 
 {After the introduction the play splits in two lines. I A. the white king plays in the a-line, in B. the white king plays in the d-line.} 1. Kg8 (1. Ba6 {? (threatening 2.Bb7)} c5 {(or 1…d4) loses.}) 1... Kg6 2. Kf8 Kf6 {preventing White from attacking the pawns.} ({White stops the pawns after} 2... c5 3. Ke7 Kf5 4. Kd6 Ke4 5. Bb5 {!} d4 6. Kc6 d3 7. Kxb6 d2 8. Ba4) 3. Ke8 Ke6 4. Kd8 Kd6 5. Kc8 Kc5 {(or 5…b5 6.Kb7 Kc5)} 6. Kb7 b5 7. Bd1 $1 ({White would lose after} 7. Ka6 $2 Kd4 {or b4}) {A)} 7... d4 ({and B.} 7... b4 8. Bb3 (8. Ka6 {?} Kc4 {and Black wins.}) 8... Kb5 ({ou} 8... d4 9. Ka6 d3 10. Ka5 d2 11. Ka4) 9. Kc7 {(Now the white king stops the pawns on the right side.)} c5 10. Bxd5 (10. Kd6 {? loses after} c4 11. Bd1 d4 12. Kd5 b3 13. Kxd4 Kb4 {zugzwang!} 14. Bg4 c3 15. Kd3 c2 16. Kd2 Ka3 17. Kc1 b2+ 18. Kxc2 Ka2) 10... c4 11. Kd6 b3 12. Ke5 Kb4 (12... Kc5 13. Bg8 b2 14. Bh7 Kb4 15. Kd4 Kb3 16. Bb1 c3 17. Kd3) 13. Kd4 c3 14. Kd3 c2 15. Kd2 {draws (15 unique moves).}) 8. Be2 $1 {Switchback} (8. Ka6 $2 {lose. The Pawns are too strong. For example} d3) 8... b4 9. Ka6 b3 10. Ka5 b2 11. Bd3 {draws (11 unique moves). This study is inspired by a study by A. Villeneuve; cf. Phénix #8143, 2018 and HHdbVI #2681. But it does not feature the ”snake manoeuvre“ that is the main theme in Villeneuve’s study.} 1/2-1/2

[Event "Phenix 2022"] [Site ""] [Date "2022.02"] [Round ""] [White "Raican, Paul"] [Black ""] [Result "1-0"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "7k/8/N6p/2K5/6B1/8/8/1n6 w - - 0 1"] [PlyCount "21"] [EventDate "2021"] 
 1. Be2 $1 (1. Kb4 $2 Nd2 $1) (1. Kd4 $2 Na3 $1 2. Kc5 Nc2 $1) (1. Bf3 $2 {the easiest way is} Nd2 2. Bg2 h5 3. Kd4 h4 4. Kd3 h3 $11) 1... Nc3 (1... Nd2 2. Kd4 {(threat Nc5)} Nb3+ 3. Kc3 Na5 4. Bf3) 2. Bf3 Nb1 (2... Na4+ 3. Kb5) (2... h5 3. Kb4 Nb1 (3... Na2+ 4. Kb3 Nc1+ 5. Kc2) 4. Be2 {/Cc5} h4 5. Nc5 $1 h3 6. Ne4 h2 7. Bf3 $18) 3. Kb4 $1 {(Threat Nc5-Ne4 and then Kb3-Kb2 or Nc5-Nb3 end then Be4)} (3. Kd4 $6 {is only a waste of time} Na3 4. Be4 $1 Nb5+ 5. Kc5 Nc3 6. Bf3 {Text on the 2nd move}) (3. Be2 $6 {is only a waste of time} Nc3 4. Bf3 Nb1 5. Kb4 {Text on the 3rd move}) 3... Nd2 (3... Kg7 4. Nc5 $1 Kf6 5. Nb3 $1) 4. Bg2 Kg7 5. Nc7 $1 {It is necessary to control b5} Kf6 6. Kc3 Nb1+ 7. Kc2 $1 (7. Kb2 {is only a waste of time} Nd2 8. Kc3 Nb1+ 9. Kc2 {Text on the 7th move}) 7... Na3+ 8. Kb3 {hence the utility of 5:Nc7} Nb1 9. Nb5 Nd2+ 10. Kc3 Nb1+ 11. Kc2 {Theme: domination.} 1-0

[Event "Phenix 2022"] [Site ""] [Date "2022.05"] [Round ""] [White "Gasparyan, Alexey (Arménie)"] [Black ""] [Result "1/2-1/2"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "1k6/3K4/8/5p2/2B4p/1p4pb/R6r/6N1 w - - 0 1"] [PlyCount "55"] [EventDate "2022"] 
 1. Ra5 $1 (1. Ra4 $2 Rd2+ $1 2. Ke6 Bg4 $19) (1. Ra3 $6 Rd2+ $1 2. Ke6 Bg4 $1 3. Rxb3+ Ka7 $3 (3... Kc7 $2 4. Bd5 $1) (3... Kc8 $2 4. Kf6 $11) 4. Bd5 (4. Rb1 $6 h3 5. Nxh3 Bxh3 6. Ke5 g2 $19) 4... Rd1 $1 $19 {par exemple} 5. Kd6 (5. Rb7+ Ka6 6. Rh7 Rxg1 $19) (5. Nf3 f4+ 6. Ke5 Rxd5+ 7. Kxf4 Bxf3 $19) 5... Rxg1 $19) (1. Bxb3 $2 Rxa2 2. Bxa2 Bg2 $19) 1... Rd2+ (1... Bg4 2. Rb5+ Ka7 3. Kc7 $11) 2. Bd5 {the justification for Ra5} (2. Ke6 $2 Bg4 $19) 2... Rxd5+ 3. Rxd5 Bf1 $1 (3... Bg4 4. Rb5+ (4. Rd4 $2 h3 5. Nxh3 Bxh3 6. Rb4+ Ka7 7. Rxb3 f4+ $1 8. Kc7 Bf1 $19 {/Ra6}) 4... Ka7 5. Kc7) 4. Rxf5 h3 5. Rxf1 g2 6. Rb1 (6. Rf8+ $4 Ka7 7. Nxh3 b2) 6... h2 7. Kc6 $3 {first positional draw} Ka7 8. Ra1+ Kb8 9. Rb1 Kc8 10. Ra1 Kd8 11. Kd6 Ke8 12. Ke6 Kf8 13. Kf6 Ke8 (13... Kg8 14. Kg6 Kf8 15. Kf6) 14. Ke6 Kd8 15. Kd6 Kc8 16. Kc6 Kb8 17. Rb1 h1=Q 18. Rxb3+ {second positional draw} Ka7 19. Ra3+ Kb8 20. Rb3+ Kc8 21. Rh3 $1 Kd8 22. Kd6 Ke8 23. Ke6 Kf8 24. Kf6 Kg8 25. Rg3+ Kh7 26. Rh3+ Kg8 27. Rg3+ Kf8 28. Rh3 1/2-1/2

[Event "Phenix 2022"] [Site ""] [Date "2022.05"] [Round ""] [White "Aliev, Ilham"] [Black "TWIN A"] [Result "1/2-1/2"] [Annotator "Daniel Capron"] [SetUp "1"] [FEN "8/p7/P2np2k/7p/1R5K/1p5P/1PR3p1/8 w - - 0 1"] [PlyCount "32"] [EventDate "2022"] 
 {Warning: twin studies. A) Position B) Rc2-a8.} 1. Rc5 (1. Rxg2 $2 Nf5#) (1. Rf2 $2 g1=Q) 1... Nf5+ (1... g1=Q 2. Rxh5+ Kg6 3. Rg4+) 2. Rxf5 exf5 3. Rc4 $1 (3. Rd4 $2 g1=Q 4. Rd6+ Qg6 $19 {zz}) 3... g1=Q 4. Rc6+ Qg6 ({Main} 4... Kh7 5. Rh6+ $1 Kg7 (5... Kxh6) 6. Rg6+ $1 Qxg6 {stalemate} (6... Kxg6 {stalemate})) (4... Kg7 5. Rg6+ $1 Kxg6 {stalemate} (5... Qxg6 {stalemate})) 5. Rd6 $1 {zz} (5. Rxg6+ $2 Kxg6 6. Kg3 Kf6) 5... Kg7 (5... Qxd6 {stalemate}) 6. Rd7+ Kf6 7. Rd6+ Kf7 8. Rd7+ Ke8 9. Rd8+ Ke7 (9... Kxd8 {stalemate}) 10. Rd7+ Ke6 (10... Kxd7 {stalemate}) 11. Rd6+ Kf7 (11... Kxd6 {stalemate}) 12. Rd7+ Kg8 13. Rd8+ Kh7 14. Rd7+ (14. Rh8+ $2 Kg7 15. Rg8+ Kf7 16. Rf8+ Ke7 17. Re8+ Qxe8) 14... Kh6 15. Rd6 f4 (15... Qxd6 {stalemate}) 16. Rxg6+ Kxg6 {stalemate} 1/2-1/2