r1b1k1nr/1p1p1pb1/p1n3p1/2p4p/3qP3/1P1PP1PN/P1PBR2P/RN1QKB2 b Qkq - 0 13
FEN state: r1b1k1nr/1p1p1pb1/p1n3p1/2p4p/3qP3/1P1PP1PN/P1PBR2P/RN1QKB2 b Qkq - 0 13 ; Best move: d4a1
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at d7, black pawn at f7 and black bishop at g7. Black pawn at a6, black knight at c6 and black pawn at g6. Black pawn at c5 and black pawn at h5. Black queen at d4 and white pawn at e4. White pawn at b3, white pawn at d3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at c2, white bishop at d2, white rook at e2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white bishop at f1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. Black to move.