r1bqk2r/3pbp1p/5n2/Bpp1p1p1/5N1P/1P1P4/P2NKPn1/1RQ2B1R b kq - 0 18
FEN state: r1bqk2r/3pbp1p/5n2/Bpp1p1p1/5N1P/1P1P4/P2NKPn1/1RQ2B1R b kq - 0 18 ; Best move: g2f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at d7, black bishop at e7, black pawn at f7 and black pawn at h7. Black knight at f6. White bishop at a5, black pawn at b5, black pawn at c5, black pawn at e5 and black pawn at g5. White knight at f4 and white pawn at h4. White pawn at b3 and white pawn at d3. White pawn at a2, white knight at d2, white king at e2, white pawn at f2 and black knight at g2. White rook at b1, white queen at c1, white bishop at f1 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.