[Event "Kondratyuk MT"] [Site "?"] [Date "2018.??.??"] [Round "?"] [White "(2) Amatzia Avni (ISR)"] [Black "?"] [Result "1-0"] [Annotator "1st Prize"] [SetUp "1"] [FEN "4B2N/7q/1P1k4/8/1R6/8/1P1pK3/3n4 w - - 0 1"] [PlyCount "11"] [EventDate "2018.??.??"] 1. b7 Nc3+ $1 2. Kxd2 Ne4+ (2... Nb1+ 3. Kc1 Qh1+ 4. Kc2 $18) 3. Rxe4 (3. Kd1 $2 Qh1+ 4. Kc2 Qg2+ 5. Kb1 Nd2+ 6. Kc1 (6. Ka2 Qd5+ 7. b3 Qa5+ 8. Ra4 Qb6 $11) 6... Nb3+ $1 7. Kb1 Nd2+ 8. Kc2 Ne4+ 9. Kb1 Nd2+ 10. Kc1 Nb3+ {perpetual check} ) 3... Qxb7 4. Nf7+ Kd5 (4... Kc7 5. Re7+ $18) 5. Bb5 $3 {Pieces en prise defend each other indirectly.} Qxb5 (5... Kxe4 6. Nd6+ $18) (5... Qxf7 6. Bc4+ $18) 6. Re5+ 1-0