2rq1bnr/2p1p3/p3B2p/Ppkp1pp1/1RP5/1PBbKnP1/N4P1P/1N5R b - - 3 21
FEN state: 2rq1bnr/2p1p3/p3B2p/Ppkp1pp1/1RP5/1PBbKnP1/N4P1P/1N5R b - - 3 21 ; Best move: d5d4
The current state of the chess board is: Black rook at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7 and black pawn at e7. Black pawn at a6, white bishop at e6 and black pawn at h6. White pawn at a5, black pawn at b5, black king at c5, black pawn at d5, black pawn at f5 and black pawn at g5. White rook at b4 and white pawn at c4. White pawn at b3, white bishop at c3, black bishop at d3, white king at e3, black knight at f3 and white pawn at g3. White knight at a2, white pawn at f2 and white pawn at h2. White knight at b1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.