r1bk1b1r/pp1p4/2p1p2q/3Qn1pp/2PP4/PNP2PPP/4BB2/R3K1NR b KQ - 3 20
FEN state: r1bk1b1r/pp1p4/2p1p2q/3Qn1pp/2PP4/PNP2PPP/4BB2/R3K1NR b KQ - 3 20 ; Best move: e6d5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7 and black pawn at d7. Black pawn at c6, black pawn at e6 and black queen at h6. White queen at d5, black knight at e5, black pawn at g5 and black pawn at h5. White pawn at c4 and white pawn at d4. White pawn at a3, white knight at b3, white pawn at c3, white pawn at f3, white pawn at g3 and white pawn at h3. White bishop at e2 and white bishop at f2. White rook at a1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 3. Full move number is 20. Black to move.