2q1kbnr/r2np3/2p2pp1/1p5p/p2PpP2/PP6/2PK1N1P/RNBb1B1R b k - 5 15
FEN state: 2q1kbnr/r2np3/2p2pp1/1p5p/p2PpP2/PP6/2PK1N1P/RNBb1B1R b k - 5 15 ; Best move: d1f3
The current state of the chess board is: Black queen at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at a7, black knight at d7 and black pawn at e7. Black pawn at c6, black pawn at f6 and black pawn at g6. Black pawn at b5 and black pawn at h5. Black pawn at a4, white pawn at d4, black pawn at e4 and white pawn at f4. White pawn at a3 and white pawn at b3. White pawn at c2, white king at d2, white knight at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, black bishop at d1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 5. Full move number is 15. Black to move.