rn2kb1r/q3pp2/1pp3pn/3p1bPp/2PPPP1P/3Q4/P2N2K1/R1BB2NR b kq - 0 21
FEN state: rn2kb1r/q3pp2/1pp3pn/3p1bPp/2PPPP1P/3Q4/P2N2K1/R1BB2NR b kq - 0 21 ; Best move: d5e4
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 queen at a7, black pawn at e7 and black pawn at f7. Black pawn at b6, black pawn at c6, black pawn at g6 and black knight at h6. Black pawn at d5, black bishop at f5, white pawn at g5 and black pawn at h5. White pawn at c4, white pawn at d4, white pawn at e4, white pawn at f4 and white pawn at h4. White queen at d3. White pawn at a2, white knight at d2 and white king at g2. White rook at a1, white bishop at c1, white bishop at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 21. Black to move.