www.arves.org - Phenix 2020

Studies awarded by the Phenix 2020 magazine tournament.

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Peter Gyarmati and Mario Garcia"] [Black "Prize"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/p7/8/1PP3R1/1K2n1p1/1bP1n1P1/5k2/8 w - - 0 1"] 
 {Theme: Positional draw by the elimination of the threat of two knights against pawns (Troitzky) and by the threat of domination of three minor pieces and pawn, against the Queen} 1. b6 $1 ({Try :} 1. Rg7 $2 Be6 $1 ({No} 1... Bd5 $2 2. b6 axb6 3. cxb6 {see solution in position X1}) 2. Rxa7 (2. c4 $2 Nc2+ $19) (2. b6 $2 axb6 3. cxb6 Nd5+ 4. Ka5 Nxb6 5. Kxb6 Kxg3 $19) 2... Nd5+ 3. Ka5 Nxc5 $19) (1. Re5 $2 Nd2 2. c6 Nd5+ 3. Kc5 Kxg3 $19 4. Rxd5 (4. c4 Nb6 5. Re7 Ndxc4 6. Rxa7 Bc2 7. c7 Bf5 $19) 4... Ne4+ 5. Kd4 Bxd5 6. Kxd5 Nxc3+ $19) 1... axb6 2. cxb6 Bd5 $1 ({main : } 2... Nxg5 3. b7 Bd1 4. b8=Q $1 ({try :} 4. c4 $2 Nc2+ $1 (4... Ne4 $2 5. b8=Q Nxg3 6. c5 Bf3 7. Ka5 $11 {see solution position (X2)}) 5. Kc3 Ne4+ 6. Kb2 Ne3 $19) 4... Ne4 5. c4 Nxg3 6. c5 $1 Bf3 7. Ka5 $1 {(X2)} ({try :} 7. Qd6 $2 Ngf5 8. Qd2+ (8. Qh2+ Kf1 9. Qd2 Bc6 10. Qc1+ Kf2 $19) 8... Kg3 9. Qc1 Nd4 10. Qxe3 Nc2+ $19) 7... Ne2 (7... Ngf5 8. Qh2+ {/b2=}) 8. Qh2+ Ke1 9. c6 $1 (9. Qh5 $2 Nd4 $19) 9... Bxc6 10. Qh6 $1 Nc4+ 11. Kb4 $1 $11 {positional draw}) 3. Rg7 { (Position X1)} Kxg3 (3... Nd6 4. Rxg4 $1 (4. c4 $2 Bf3 5. c5 Nb7 $19) 4... Nxg4 5. Kc5 $1 $11 {no is possible "Troitzky"}) (3... Nxg3 4. c4 {/b7=}) 4. c4 $1 (4. b7 $2 Bxb7 5. Rxb7 Nd5+ {/d6-+ win by Troiski} 6. Ka5 Nd6 7. Rd7 Nc4+ 8. Kb5 Nde3 {We have a classic ending where the Pawn will cost the Rook and the K + 2N / K + P position is winning as Troitzky has shown in several studies published since the late 19th century.}) 4... Nc2+ 5. Ka5 $1 (5. Kb3 $2 Nd4+ 6. Kb4 Nc6+ 7. Kb5 Nc3+ 8. Kc5 Bf3 9. b7 Na2 10. Rg8 Nab4 11. b8=Q+ Nxb8 12. Kxb4 Nc6+ $19) 5... Bc6 6. b7 $1 (6. Rc7 $2 Nd4 7. b7 (7. Kb4 Kf4 8. Rf7+ Nf5 9. Rc7 g3 10. Rxc6 Nfd6 11. b7 Nxb7 12. Rg6 Nbc5 $19 {Troiski}) 7... Bxb7 8. Rxb7 Nc5 $19 {Troiski}) 6... Bxb7 7. Rxb7 Nc5 8. Rf7 $1 (8. Rc7 $2 Nd4 9. Rxc5 Nb3+ $19) 8... Nd4 9. Kb4 Nde6 10. Kc3 $1 Kh2 11. Kd2 $1 (11. Rh7+ $2 Kg2 12. Kd2 Kf3 13. Rf7+ Nf4 $19) 11... g3 12. Rh7+ $11 {positional draw e.g.} 12...Kg1 13.Rh6 g2 14.Ke3 {and Black can no longer progress without mobilizing their N and thus allowing c5 after which it is sufficient to sacrifice the Rook on Pg2 to make a draw (Troitzky)} 1/2-1/2

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Marco Campioli"] [Black "Prize"] [Result "1/2-1/2"] [SetUp "1"] [FEN "8/4P1PP/1P5n/4p1pp/p3ppP1/p1p1nk1K/8/8 w - - 0 1"] 
 1. e8=Q (1. gxh5 c2 $19) (1. g8=Q hxg4+ 2. Kh2 g3+ 3. Kg1 c2 4. Qc8 a2 5. Qc3 Kg4 6. e8=Q f3 $19) (1. h8=Q hxg4+ 2. Kh2 g3+ {and mate} 3. Kg1 (3. Kh3 Neg4 {[%eval 32766,0]}) 3... a2 {[%eval 32764,0]}) 1... hxg4+ (1... Nf1 2. Qxh5 a2 3. Qxg5 a1=Q 4. Kh4 $11) (1... c2 2. Qc6 $11 {(/Qc8) main line}) (1... a2 2. Qxa4 c2 3. Qa3 hxg4+ 4. Kh2 Kf2 5. g8=Q Nxg8 6. hxg8=Q g3+ 7. Kh3 g4+ 8. Kh4 $11) 2. Kh2 g3+ (2... Kf2 3. g8=Q Nhf5 4. Qb5 c2 5. Qc5 a2 6. Qxc2+ Nxc2 7. Qxa2 g3+ 8. Kh3 Kf3 9. Qg8 g2 10. Qxg5 $16) 3. Kg1 (3. Kh1 $2 {/Kh3?} c2 4. Qh5+ Kf2 $19) 3... c2 4. Qc6 {(/Qc8)} a2 (4... Nhf5 5. h8=Q $11) 5. Qc3 Nhf5 $1 (5... Ke2 6. g8=Q $11) 6. h8=Q (6. g8=Q $2 Nd4 $1 7. Qgc4 a1=Q+ 8. Qxa1 Nxc4 9. Qf1+ Ke3 10. Qxc4 Ne2+ 11. Kf1 c1=Q+ 12. Qxc1+ Nxc1 13. h8=Q f3 $19) 6... Nd4 7. Qh5+ $1 (7. Qh1+ $2 Kg4 8. Qxe4 Ne2+ 9. Kh1 Nxc3 $19) 7... g4 8. Qh1+ (8. Qxg4+ $2 Kxg4 9. g8=Q+ Kf3 $19) 8... Ke2 9. g8=Q (9. Qg2+ $2 Nxg2 10. Kxg2 f3+ 11. Kxg3 Kd1 12. g8=Q Ne2+) 9... f3 (9... Nf3+ 10. Qxf3+ gxf3 11. Qgc4+ Nxc4 12. Qxc4+ Kd1 13. Qd5+ $11) (9... a1=Q+ 10. Qxa1 Nf3+ (10... f3 11. Qxg4 $11) 11. Qxf3+ gxf3 12. Qf1+ $1 Nxf1 13. Qc4+ Kd2 14. Kxf1 $11) 10. Qg2+ $1 (10. Qgc4+ $2 Nxc4 11. Qxc4+ Kd1 $1 12. Qf1+ Kd2 13. Qh6+ e3 14. b7 c1=Q 15. Qxe3+ ( 15. Qxc1+ Kxc1 16. Qxe3+ Kc2 $1 17. Qe4+ Kd2 $19) 15... Kxe3 16. Qxc1+ Ke4 17. b8=Q Ne2+ 18. Kh1 g2+ 19. Kh2 g3+ 20. Kh3 g1=N+ $1 $19 (20... Nxc1 $2 21. Qb4+ {perpetual check})) (10. Qxe3+ $2 Kxe3 11. Qg5+ {/Qh6+} Kd3 12. Qc1 Ne2+ $19) 10... fxg2 11. Qxc2+ $1 Nexc2 $1 12. Qxa2 e3 $1 (12... Kd3 13. Qb1 Kd2 (13... e3 14. b7 {cf Main line}) 14. Kxg2 e3 15. b7 e2 16. b8=Q Ne3+ 17. Kxg3 $11) 13. b7 (13. Qxc2+ $2 Nxc2 14. b7 Kd1 15. b8=Q e2 16. Qxe5 e1=Q+ 17. Qxe1+ Kxe1 $1 $18 (17... Nxe1 $4 {stalemate})) 13... Kd3 14. Qb1 $1 (14. b8=Q $2 Ne2+ $1 15. Kxg2 Ne1+ 16. Kf1 g2+ 17. Kxe1 g1=Q#) (14. Qxc2+ $2 Kxc2 15. b8=Q e2 16. Kxg2 e1=R $1 $19) (14. Kxg2 $2 e2 15. b8=Q Ne3+ $1 16. Kxg3 e1=Q+ $19) 14... e2 15. b8=Q e1=Q+ 16. Qxe1 Nxe1 (16... Nf3+ 17. Kxg2 Ncxe1+ {/Cfxe1} 18. Kxg3 $11) 17. Qb3+ {(/Qb5+)} (17. Qb1+ $2 Nec2 $1 18. Qd1+ Ke3 19. Qe1+ $5 Ne2+ $1 $19) 17... Nxb3 {(Nxb5) stalemate. Semi-pawn study. Various tries. Multiple promotions to White Queen. Promotion to Black Queen. Under-promotion to Rook (see the play in the variation after 14.Qxc2+?). Under-promotion to Knight (see the play in the variation after 10. Qgc4+?). Sacrifices. Strong counter-play by Black. Stalemate.} 1/2-1/2

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Pavel Arestov and Daniel Keith"] [Black "1st HM"] [Result "1/2-1/2"] [SetUp "1"] [FEN "b4K2/b7/8/5k1N/R7/8/3p4/8 w - - 0 1"] 
 1. Ra5+ (1. Ng7+ $2 {EG} Ke5 2. Ra5+ (2. Rxa7 d1=Q 3. Rxa8 Qd6+ $19) 2... Bd5 $19) (1. Ng3+ $2 {EG} Ke5 2. Ra5+ Bd5 3. Ne2 d1=Q 4. Rxd5+ Qxd5 $19) 1... Bc5+ $1 (1... Kg4 2. Nf6+ $1 Kf3 3. Rxa7 d1=Q 4. Rxa8 $11 {the d5 square is controlled, so Qd6+ no longer wins the R}) (1... Kg6 2. Nf4+ $1 Kf6 {EG} 3. Nd5+ {followed by Nc3}) (1... Ke6 2. Ng7+ $1 Kd6 {EG} 3. Nf5+ Kc6 4. Ra1 { followed by Rd1 and Rxd2}) (1... Ke4 2. Nf6+ $1 {and we can take the 2B because the d5 square is controlled.}) 2. Rxc5+ Ke6 (2... Kg4 {(or Ke4)} 3. Ra5 d1=Q 4. Nf6+ $1 {followed by Rxa8}) (2... Kg6 3. Nf4+ $1 Kf6 4. Nd5+ {and Nc3}) 3. Nf4+ (3. Ng7+ $2 Kd7 $1 (3... Kd6 $2 4. Rc8 Bd5 5. Nf5+ {and Ne3}) 4. Ra5 d1=Q 5. Ra7+ Kd6 $19) 3... Kd6 (3... Kd7 4. Rc3 $10) 4. Rc3 $1 (4. Rc8 $2 Bc6 $19) (4. Ra5 $2 d1=Q 5. Rxa8 Qf3 6. Ra4 Qb7 $19 {attacks the R by Qc8-Qd7 and attacks the N by Qe7-Qg5.}) 4... Be4 5. Rc4 Ke5 6. Ne2 d1=Q 7. Rxe4+ Kf5 8. Ng3+ Kf6 1/2-1/2

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Michael Pasman"] [Black "2nd 3rd HM"] [Result "1/2-1/2"] [Annotator "mp"] [SetUp "1"] [FEN "7n/2K3p1/8/2k5/R1P5/8/2pP4/8 w - - 0 1"] 
 1. d4+ $1 (1. Ra1 Kxc4 2. Kd6 Kd3 $19) 1... Kxd4 2. c5+ $1 {[%emt 0:00:00]} (2. Ra1 Kxc4) 2... Kxc5 (2... Kxc5 {[%emt 0:00:05]}) 3. Ra6 $1 Kc4 4. Rc6+ Kb3 5. Rb6+ $1 (5. Kb8 $2 Nf7 $1 6. Rb6+ Kc3 7. Rc6+ Kd2 $19) 5... Kc3 6. Rc6+ Kb2 $1 (6... Kd2 {would be less good because after} 7. Rd6+ Kc1 {the two moves Kb8 and Kc8 make draw}) 7. Rb6+ Kc1 8. Kb8 $1 {Surprising, paradoxical move with the King to an unexpected square} (8. Kc8 $2 Nf7 $1 $19 {and Rb7 is no more possible}) 8... g5 (8... Nf7 9. Rb7 $1 $11) 9. Rb7 $1 {It is necessary to threaten to go and take the "g" P without approaching the R on the 5th row because it would be too close to perpetually check the black K} (9. Rf6 $2 g4 $1 $19) 9... Ng6 (9... g4 10. Rg7 $1 Kd2 11. Rd7+ Kc3 12. Rc7+ Kb2 13. Rb7+ Kc1 14. Rg7 $1) 10. Rg7 $1 Kb2 11. Rb7+ Kc3 12. Rc7+ Kd2 13. Rd7+ Kc1 14. Rg7 Kd1 15. Rd7+ Ke2 16. Rc7 $11 Nf4 17. Rxc2+ $11 1/2-1/2

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Vladimir Samilo"] [Black "spec. HM"] [Result "1-0"] [SetUp "1"] [FEN "8/1B3p2/8/3N2k1/p7/1p5p/1R1K4/7b w - - 0 1"] 
 {Development of idea of the JVE (Jean de Villeneuve Esclapon) study: - added thematic refusal to take bPa2, also introduction with attracting wR and bB on thematic squares.} 1. Kc3 (1. Rb1 $5 Bg2 $1 2. Rg1 Kh6 3. Nf4 Bxb7 (3... h2 4. Rxg2 h1=Q 5. Rg6+ $1 $18) 4. Nxh3 a3 $1 5. Nf2 Bc8 6. Kc3 ({insufficient would also be} 6. Rh1+ $1 Kg5 7. Kc3 b2 8. Ne4+ Kf4 9. Nd2 Be6 10. Re1 { and the f Pawn is hard to advance mais} (10. Rh4+ Kg5 $3 (10... Kg3 $2 11. Ra4 Bf5 12. Rxa3 b1=Q 13. Nxb1 Bxb1 14. Kb2+ $1 $18) 11. Ra4 Bf5 $11 12. Ra5 Kf4) 10... Bd5 $1 11. Kc2 f5 12. Kb1 Bg8 13. Re7 Bd5 $1 $11 {White cannot strengthen his position (positional draw) 14:Ra7 Ke3 or 14:Re2 Be4+}) 6... b2 7. Ne4 Be6 8. Nd2 f5 $1 9. Kc2 f4 $1 $11) 1... a3 2. Rh2 (2. Rb1 $2 Bg2 $1 $11) 2... Bg2 3. Kxb3 Kh4 (3... a2 4. Kb2 $1 {see solution} (4. Kxa2 $2 Kh4 5. Nf4 Bxb7 $11 6. Rxh3+ Kg4 7. Rh7 $1 Be4 8. Rxf7 Bf5 9. Nd5 Be6 10. Rf4+ Kg5 11. Rd4 Kf5 12. Kb3 Ke5 13. Kc4 Kd6 $1 $11 {JVE})) 4. Nf4 Bxb7 5. Rxh3+ Kg4 6. Rh7 $1 Be4 (6... Kxf4 $2 7. Rxf7+) 7. Rxf7 Bf5 (7... a2 8. Kb2 $1 $18) 8. Nd5 Be6 9. Rf4+ Kg5 10. Rd4 a2 $1 (10... Kf5 11. Kc3 $1 a2 12. Ne3+ $18 (12. Ne7+ $2 Kf6 $11)) 11. Kb2 $3 $18 (11. Kxa2 $2 Kf5 $1 12. Kb3 Ke5 13. Kc4 Kd6 $1 $11 { Jean de Villeneuve Esclapon, 1923.}) 1-0

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Peter Krug and Mario Garcia"] [Black "spec. HM"] [Result "1/2-1/2"] [SetUp "1"] [FEN "3B3k/1p2N2p/pP4pP/P6n/3pb1K1/8/B1p3P1/8 w - - 0 1"] 
 1. Bc7 $1 (1. Nxg6+ $2 hxg6 2. Bg5 Kh7 $1 3. Bc1 (3. Bc4 Nf6+ 4. Kg3 d3 $19) 3... Bd5 4. Bxd5 Nf6+ $1 $19) 1... Nf6+ 2. Kg5 c1=Q+ 3. Bf4 $1 (3. Kxf6 $2 Qf1+ $1 4. Ke6 Bf5+ $1 $19) 3... Qa3 4. Be5 $1 (4. Kxf6 $2 Qxa2 5. Be5 Qxa5 6. Bxd4 Qd2 7. Be5 Bd5 $1 $19) 4... Qxe7 5. Bxd4 {(when the e4 square is occupied Qc5+ is useless!)} (5. Bxf6+ $2 Qxf6+ 6. Kxf6 d3 7. Ke5 d2 8. Bb3 Bxg2 9. Kf4 Bd5 10. Bd1 Kg8 $19) 5... Bb1 6. Bc4 (6. Bd5 $2 Qe3+ $1 (6... Be4 $2 7. Ba2 $11 {see solution}) 7. Bxe3 Nxd5 $19 ) (6. Bb3 $2 Bc2 $3 {obtaining access to the b3 and a4 squares. We are now in the main variant, but with the B in c2.} 7. Bc4 {/Fa2} Qc5+ 8. Bxc5 Ne4+ 9. Kf4 Nxc5 10. Ke5 ({Ajout} 10. Bd5 Ba4 {If the B was still in b1, this maneuver would be impossible and the position would be a draw!} 11. Ke5 Bc6 $19) 10... Nb3 $19) 6... Bd3 (6... Qc5+ 7. Bxc5 Ne4+ 8. Kf4 $1 $11 Nxc5 {EG} 9. Bd5 Bc2 10. Ke5 {and the b7 Pawn is lost} Bb3 11. Bf3 Ba4 12. Kd6 $1) 7. Ba2 {!!} (7. Bd5 $2 Qe3+ 8. Bxe3 Nxd5 $19) 7... Qc5+ 8. Bxc5 Ne4+ 9. Kf4 Nxc5 10. Ke5 $1 ( 10. Bd5 $2 Bb5 11. Ke5 Bc6 12. Bxc6 bxc6 13. Kd6 Nb7+ 14. Kxc6 Nxa5+ $19) { with two variants : a)} 10... Bb5 ({b)} 10... Bc2 11. Bd5 $1 (11. Kd6 $2 Nb3 $1 12. Kc7 Nxa5 $19) 11... Bb3 12. Bf3 $1 $11 {positional draw}) 11. Kd6 $1 (11. Bf7 $2 Ba4 $19) 11... Ne4+ 12. Kc7 $1 {positional draw. The black king cannot leave, when the bishop dominates the diagonal. And when it is not on the diagonal the capture of the pawns on the flank of the queen is threatened} (12. Ke7 $2 Nd2 13. Bd5 Nc4 14. Bxb7 Nxa5 15. Bc8 Bc6 16. Bxa6 Bxg2 $19) 1/2-1/2

[Event "Phenix 2020"] [Site ""] [Date "2020"] [Round ""] [White "Jarl Henning Ulrichsen"] [Black "Special commendation"] [Result "1-0"] 
 [SetUp "1"] [FEN "8/4p2k/1R6/K4p2/8/3p2p1/1P3PP1/8 w - - 0 1"] [PlyCount "25"] [EventDate "2020"] 
 {The author takes up an idea of Hildebrand with whom he was a friend. The latter regretted that he could not have the P on b2 and that the black King was already in position in the corner. The author succeeds in a composition where the "b" pawn as well as the Kings cross the board which produces a particularly unexpected ending. I considered this study as an original work.}  1. Rb4 {!} gxf2 (1... e5 2. fxg3 e4 3. Rd4) 2. Rh4+ (2. Rf4 {?} d2 3. Rh4+ Kg6 4. Rh1 Kg5 5. Kb4 Kf4 6. Kc3 Ke3 {!} ({Not} 6... Kg3 {?} 7. Kxd2 Kxg2 {and we are back in the solution.}) 7. Rd1 e5 8. b4 Ke2 9. Rxd2+ Ke1 {and Black draws.} ) 2... Kg6 3. Rh1 Kg5 (3... d2 {loses an important tempo:} 4. Kb4 Kg5 5. Kc3 Kf4 6. Kxd2 Kg3 7. Ke2 Kxg2 8. Rf1) 4. Kb4 (4. b4 {?} e5 5. b5 e4 6. b6 e3 7. b7 e2 8. b8=Q e1=Q+ 9. Kb5 Qxh1) 4... Kf4 5. Kc3 ({Of course not} 5. Kc4 {?} Ke3 6. Kc3 Ke2 7. b4 f1=Q 8. Rxf1 Kxf1 9. Kxd3 Kxg2) 5... Kg3 6. Kxd3 Kxg2 7. Ke2 Kxh1 8. Kf1 {!} ({Not} 8. Kxf2 {?} e5 9. b4 e4 10. b5 f4 11. b6 e3+ 12. Kf1 f3 13. b7 e2+ 14. Kf2 e1=Q+ 15. Kxe1 Kg2 16. b8=Q f2+ 17. Kd2 f1=Q) 8... e5 9. b4 e4 10. b5 f4 (10... e3 11. b6 f4 12. b7 f3 13. b8=R (13. b8=Q e2+ 14. Kxf2 e1=Q+ 15. Kxe1 f2+ 16. Kxf2 {(or Kf1) stalemate.})) 11. b6 e3 12. b7 f3 13. b8=R {Exelcior, minor promotion and stalemate avoidance} 1-0