rn2kb1r/pb3p1p/4B2p/q3p3/1P1P2n1/2PQP2P/P4PP1/R1B2RK1 b kq - 1 21
FEN state: rn2kb1r/pb3p1p/4B2p/q3p3/1P1P2n1/2PQP2P/P4PP1/R1B2RK1 b kq - 1 21 ; Best move: a5a6
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at f7 and black pawn at h7. White bishop at e6 and black pawn at h6. Black queen at a5 and black pawn at e5. White pawn at b4, white pawn at d4 and black knight at g4. White pawn at c3, white queen at d3, white pawn at e3 and white pawn at h3. White pawn at a2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white rook at f1 and white king at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 21. Black to move.