2b1k1nr/1ppp1ppp/r2bp3/p7/1PnqPN2/6QN/P1P1KPPP/R1B2B1R b k - 0 13
FEN state: 2b1k1nr/1ppp1ppp/r2bp3/p7/1PnqPN2/6QN/P1P1KPPP/R1B2B1R b k - 0 13 ; Best move: d4a1
The current state of the chess board is: Black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black rook at a6, black bishop at d6 and black pawn at e6. Black pawn at a5. White pawn at b4, black knight at c4, black queen at d4, white pawn at e4 and white knight at f4. White queen at g3 and white knight at h3. White pawn at a2, white pawn at c2, white king at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, 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.