1q1k3r/r1p2p1p/1pn1b2n/p2pp1p1/N1BbQ2P/1PP1PPP1/3P4/R1B1K1NR b KQ - 0 18
FEN state: 1q1k3r/r1p2p1p/1pn1b2n/p2pp1p1/N1BbQ2P/1PP1PPP1/3P4/R1B1K1NR b KQ - 0 18 ; Best move: d5e4
The current state of the chess board is: Black queen at b8, black king at d8 and black rook at h8. Black rook at a7, black pawn at c7, black pawn at f7 and black pawn at h7. Black pawn at b6, black knight at c6, black bishop at e6 and black knight at h6. Black pawn at a5, black pawn at d5, black pawn at e5 and black pawn at g5. White knight at a4, white bishop at c4, black bishop at d4, white queen at e4 and white pawn at h4. White pawn at b3, white pawn at c3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at d2. White rook at a1, white bishop at c1, 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 0. Full move number is 18. Black to move.