1n1qkb1r/2r1p1pp/3p3n/ppp1PpN1/QPP1bP2/P5P1/7P/RNB1KB1R b KQk - 0 18
FEN state: 1n1qkb1r/2r1p1pp/3p3n/ppp1PpN1/QPP1bP2/P5P1/7P/RNB1KB1R b KQk - 0 18 ; Best move: b5a4
The current state of the chess board is: Black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black rook at c7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at d6 and black knight at h6. Black pawn at a5, black pawn at b5, black pawn at c5, white pawn at e5, black pawn at f5 and white knight at g5. White queen at a4, white pawn at b4, white pawn at c4, black bishop at e4 and white pawn at f4. White pawn at a3 and white pawn at g3. White pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 0. Full move number is 18. Black to move.