rn2kbnr/qb1pp1p1/2p2p1p/1P4P1/QP6/2P1PN2/1B1P1P1P/RN2KBR1 b Qkq - 0 13
FEN state: rn2kbnr/qb1pp1p1/2p2p1p/1P4P1/QP6/2P1PN2/1B1P1P1P/RN2KBR1 b Qkq - 0 13 ; Best move: a7a4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black queen at a7, black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at g7. Black pawn at c6, black pawn at f6 and black pawn at h6. White pawn at b5 and white pawn at g5. White queen at a4 and white pawn at b4. White pawn at c3, white pawn at e3 and white knight at f3. White bishop at b2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at g1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. Black to move.