rn2kb1r/1p1bq3/p6p/1Np1ppN1/4n3/3P2P1/PP3PBP/1R1KQ2R w kq - 2 20
FEN state: rn2kb1r/1p1bq3/p6p/1Np1ppN1/4n3/3P2P1/PP3PBP/1R1KQ2R w kq - 2 20 ; Best move: b5c7
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black bishop at d7 and black queen at e7. Black pawn at a6 and black pawn at h6. White knight at b5, black pawn at c5, black pawn at e5, black pawn at f5 and white knight at g5. Black knight at e4. White pawn at d3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at b1, white king at d1, white queen at e1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 20. White to move.