r3k2r/pqpp1pb1/3p1npp/1P1P4/5PP1/1P5P/P2KP3/R1BQ1BNR b kq - 0 18
FEN state: r3k2r/pqpp1pb1/3p1npp/1P1P4/5PP1/1P5P/P2KP3/R1BQ1BNR b kq - 0 18 ; Best move: b7d5
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at h8. Black pawn at a7, black queen at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black bishop at g7. Black pawn at d6, black knight at f6, black pawn at g6 and black pawn at h6. White pawn at b5 and white pawn at d5. White pawn at f4 and white pawn at g4. White pawn at b3 and white pawn at h3. White pawn at a2, white king at d2 and white pawn at e2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 18. Black to move.