1nbqk1r1/3p1p2/1p1b2pn/1p2p2p/7P/2P1P1PN/BBQP1P2/RN2K1R1 w Q - 1 20
FEN state: 1nbqk1r1/3p1p2/1p1b2pn/1p2p2p/7P/2P1P1PN/BBQP1P2/RN2K1R1 w Q - 1 20 ; Best move: a2d5
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at d7 and black pawn at f7. Black pawn at b6, black bishop at d6, black pawn at g6 and black knight at h6. Black pawn at b5, black pawn at e5 and black pawn at h5. White pawn at h4. White pawn at c3, white pawn at e3, white pawn at g3 and white knight at h3. White bishop at a2, white bishop at b2, white queen at c2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 20. White to move.