Chess puzzle (Advantage)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Samisch_Variation
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Nbd7 8. b4 Ne8
9. Bd3 f5 10. Nge2 f4 11. Bf2 g5 12. c5 h5 13. Rc1 g4 14. Qb3 Kh8 15. cxd6 cxd6
16. Qc4 a6 17. Na4 b5 18. Qc6 Rb8 19. Nb6 Bb7 *
Position (FEN): 1r1qnr1k/1b1n2b1/pNQp4/1p1Pp2p/1P2Ppp1/3B1P2/P3NBPP/2R1K2R w K - 4 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1494
Best move: Qxd7