1rb1kb1r/p2p4/n6n/2p1pppN/2pPPP2/6pB/PP2N1Q1/R1BK2R1 b k - 1 18
FEN state: 1rb1kb1r/p2p4/n6n/2p1pppN/2pPPP2/6pB/PP2N1Q1/R1BK2R1 b k - 1 18 ; Best move: e5f4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7 and black pawn at d7. Black knight at a6 and black knight at h6. Black pawn at c5, black pawn at e5, black pawn at f5, black pawn at g5 and white knight at h5. Black pawn at c4, white pawn at d4, white pawn at e4 and white pawn at f4. Black pawn at g3 and white bishop at h3. White pawn at a2, white pawn at b2, white knight at e2 and white queen at g2. White rook at a1, white bishop at c1, white king at d1 and white rook at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 18. Black to move.