rn2k2r/p2nb3/b1q5/1pp1pp1p/3PP2p/P1B2Q1N/1PPN1KPR/R4B2 w kq - 6 21
FEN state: rn2k2r/p2nb3/b1q5/1pp1pp1p/3PP2p/P1B2Q1N/1PPN1KPR/R4B2 w kq - 6 21 ; Best move: d4d5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at a7, black knight at d7 and black bishop at e7. Black bishop at a6 and black queen at c6. Black pawn at b5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at d4, white pawn at e4 and black pawn at h4. White pawn at a3, white bishop at c3, white queen at f3 and white knight at h3. White pawn at b2, white pawn at c2, white knight at d2, white king at f2, white pawn at g2 and white rook at h2. White rook at a1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 6. Full move number is 21. White to move.