r1bqk1n1/1p1p1p1r/p1B1p1p1/2p4p/1P3N1b/2PPPP1R/P3K1P1/RNBQ4 b q - 0 13
FEN state: r1bqk1n1/1p1p1p1r/p1B1p1p1/2p4p/1P3N1b/2PPPP1R/P3K1P1/RNBQ4 b q - 0 13 ; Best move: d7c6
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black knight at g8. Black pawn at b7, black pawn at d7, black pawn at f7 and black rook at h7. Black pawn at a6, white bishop at c6, black pawn at e6 and black pawn at g6. Black pawn at c5 and black pawn at h5. White pawn at b4, white knight at f4 and black bishop at h4. White pawn at c3, white pawn at d3, white pawn at e3, white pawn at f3 and white rook at h3. White pawn at a2, white king at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1 and white queen at d1. Black queenside is the only castle move available. Half move number is 0. Full move number is 13. Black to move.