rn1q1k1r/p1p3pp/bp1b4/3B1p2/P2Pnp1N/2N1PQ2/R5PP/2B1K2R b K - 4 15
FEN state: rn1q1k1r/p1p3pp/bp1b4/3B1p2/P2Pnp1N/2N1PQ2/R5PP/2B1K2R b K - 4 15 ; Best move: e4c3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at g7 and black pawn at h7. Black bishop at a6, black pawn at b6 and black bishop at d6. White bishop at d5 and black pawn at f5. White pawn at a4, white pawn at d4, black knight at e4, black pawn at f4 and white knight at h4. White knight at c3, white pawn at e3 and white queen at f3. White rook at a2, white pawn at g2 and white pawn at h2. White bishop at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 4. Full move number is 15. Black to move.