q2nk2r/2pbbp1p/1p1p4/1N2p1N1/4P1n1/1P6/2PP3P/RQ2KB1R w K - 1 20
FEN state: q2nk2r/2pbbp1p/1p1p4/1N2p1N1/4P1n1/1P6/2PP3P/RQ2KB1R w K - 1 20 ; Best move: b5c7
The current state of the chess board is: Black queen at a8, black knight at d8, black king at e8 and black rook at h8. Black pawn at c7, black bishop at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at b6 and black pawn at d6. White knight at b5, black pawn at e5 and white knight at g5. White pawn at e4 and black knight at g4. White pawn at b3. White pawn at c2, white pawn at d2 and white pawn at h2. White rook at a1, white queen at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 20. White to move.