rnb2bn1/p3p3/1k4pr/qp1p1p1p/PPBpNPQP/4P3/2PK2P1/RNB4R b - - 1 13
FEN state: rnb2bn1/p3p3/1k4pr/qp1p1p1p/PPBpNPQP/4P3/2PK2P1/RNB4R b - - 1 13 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7 and black pawn at e7. Black king at b6, black pawn at g6 and black rook at h6. Black queen at a5, black pawn at b5, black pawn at d5, black pawn at f5 and black pawn at h5. White pawn at a4, white pawn at b4, white bishop at c4, black pawn at d4, white knight at e4, white pawn at f4, white queen at g4 and white pawn at h4. White pawn at e3. White pawn at c2, white king at d2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 13. Black to move.