2rqkrn1/pn1p4/b1p2p2/1N2p3/RP2P2p/3R4/1PPPBPp1/2B1K1N1 w - - 0 21
FEN state: 2rqkrn1/pn1p4/b1p2p2/1N2p3/RP2P2p/3R4/1PPPBPp1/2B1K1N1 w - - 0 21 ; Best move: a4a6
The current state of the chess board is: Black rook at c8, black queen at d8, black king at e8, black rook at f8 and black knight at g8. Black pawn at a7, black knight at b7 and black pawn at d7. Black bishop at a6, black pawn at c6 and black pawn at f6. White knight at b5 and black pawn at e5. White rook at a4, white pawn at b4, white pawn at e4 and black pawn at h4. White rook at d3. White pawn at b2, white pawn at c2, white pawn at d2, white bishop at e2, white pawn at f2 and black pawn at g2. White bishop at c1, white king at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.