r1bk1b2/2ppqp2/1pn4r/p3pPpp/2P2Q2/1P1P2P1/PR2B2P/2B1K1NR b K - 1 18
FEN state: r1bk1b2/2ppqp2/1pn4r/p3pPpp/2P2Q2/1P1P2P1/PR2B2P/2B1K1NR b K - 1 18 ; Best move: e5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8 and black bishop at f8. Black pawn at c7, black pawn at d7, black queen at e7 and black pawn at f7. Black pawn at b6, black knight at c6 and black rook at h6. Black pawn at a5, black pawn at e5, white pawn at f5, black pawn at g5 and black pawn at h5. White pawn at c4 and white queen at f4. White pawn at b3, white pawn at d3 and white pawn at g3. White pawn at a2, white rook at b2, white bishop at e2 and white pawn at h2. White bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.