2bqk2r/1p1n1n1p/4p1pb/2ppN2P/rpN1P3/5P2/P1PP1KP1/R1BQ1B1R b k - 0 13
FEN state: 2bqk2r/1p1n1n1p/4p1pb/2ppN2P/rpN1P3/5P2/P1PP1KP1/R1BQ1B1R b k - 0 13 ; Best move: d5c4
The current state of the chess board is: Black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at b7, black knight at d7, black knight at f7 and black pawn at h7. Black pawn at e6, black pawn at g6 and black bishop at h6. Black pawn at c5, black pawn at d5, white knight at e5 and white pawn at h5. Black rook at a4, black pawn at b4, white knight at c4 and white pawn at e4. White pawn at f3. White pawn at a2, white pawn at c2, white pawn at d2, white king at f2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 13. Black to move.