[Event "Olympic Ty"] [Site "?"] [Date "2018.??.??"] [Round "?"] [White "(2) Oleg Pervakov (RUS)"] [Black "?"] [Result "1-0"] [Annotator "1st Prize"] [SetUp "1"] [FEN "4R3/1r2P3/3r2P1/8/p4q2/1pQp1k1P/P6P/3RK3 w - - 0 1"] [PlyCount "29"] [EventDate "2018.??.??"] 1. Rd2 $1 Rxe7+ $1 {Attracting the white rook on e7.} (1... Qe3+ 2. Kf1 $18) ( 1... Re6+ 2. Kd1 $18) 2. Rxe7 Qh4+ 3. Kf1 $3 {It is necessary to get rid of pawn h3!} ({Logical try-1:} 3. Kd1 $2 Qxe7 4. g7 (4. axb3 Qe3 $1 $11) 4... Qg5 $1 5. Rxd3+ (5. Kc1 b2+ $1 6. Kb1 Qg1+ 7. Kxb2 a3+ $1 8. Kxa3 Ra6+ 9. Kb2 Rb6+ 10. Ka3 Ra6+ {perpetual check}) (5. Re2 bxa2 $1 6. Rxa2 Qg1+ $11) 5... Qe3 $1 6. Qc6+ $5 Kf2 $1 7. Qg2+ Kxg2 8. g8=Q+ Kxh2 $11 {and the pawn h3 prevents white to carry out conceived.} (8... Kh1)) 3... Qxh3+ 4. Ke1 (4. Kg1 $4 Rxg6+ 5. Kh1 Qf1#) 4... Qh4+ 5. Kd1 Qxe7 6. g7 $1 {It is necessary to win a tempo.} ( {After} 6. Rxd3+ $4 Qe3 $1 $19 {"the Maltese cross" conducts to a victory of black.}) ({The mate waits white after} 6. Qc5 $4 Qe2+ $1 7. Rxe2 dxe2+ 8. Ke1 Rd1#) 6... Qg5 $1 7. Rxd3+ Qe3 $1 8. Qc6+ $3 {Correct "removal from a cross"!} ({Logical try-2:} 8. Qf6+ $2 Rxf6 $1 9. Rxe3+ Kxe3 10. g8=Q Rf1#) 8... Kf2 $1 ( 8... Rxc6 9. Rxe3+ Kxe3 10. g8=Q $18) 9. Qg2+ $1 (9. Rxd6 $4 Qe1#) 9... Kxg2 10. g8=Q+ Kh3 $1 {Protection of black is based on win white rook d6 after capture black rook.} ({So, badly} 10... Kh1 11. Qa8+ Kg1 12. Rxd6 $18) 11. Qh8+ $1 {And a problem of white - to force black to take also the second pawn "h".} ({Early} 11. Rxd6 $2 Qf3+ 12. Kc1 Qc3+ $11) (11. Qh7+ $2 Kg4 $1 12. h3+ Kg3 $1 $19) 11... Kg2 $1 (11... Kg4 12. h3+ $1 Kg3 13. Qe5+ $1 $18) 12. Qg7+ $1 ({No progress after} 12. Qa8+ Kh3 $1 {, because} 13. Qh1 $4 {is not check}) 12... Kxh2 {It is necessary.} (12... Kh3 13. Rxd6 Qf3+ 14. Kc1 $1 Qf1+ 15. Rd1 $1 $18 ) 13. Qh8+ $1 {The pawn of h2 is destroyed, and white realize the plan.} (13. Rxd6 $2 Qf3+ 14. Kc1 Qf1+ $1 15. Kb2 Qf2+ 16. Ka3 Qc5+ $11) 13... Kg2 (13... Kg3 14. Qe5+ $1 $18) (13... Qh6 14. Qe5+ $1 $18) (13... Kg1 14. Rxd6 Qf3+ 15. Kc1 $1 Qf4+ 16. Rd2 $18) 14. Qa8+ $1 Kh3 $1 ({The white king leaves easily from checks after} 14... Kg3 15. Rxd6 Qg1+ 16. Kd2 (16. Ke2) 16... Qf2+ 17. Kd3 Qc2+ 18. Kd4 Qd2+ 19. Kc5 $1 $18) (14... Kh2 15. Rxd6 Qg1+ 16. Ke2 $1 Qg4+ 17. Qf3 $18) 15. Qh1+ $1 {with the decisive check and the subsequent capture of the black rook. The newborn white queen visited three corners of a board.} (15. Rxd6 $2 Qg1+ 16. Ke2 Qh2+ $1 $11) 1-0