rn1r4/pp2pp1p/3k1np1/2p1N1bP/P3P1P1/3q4/bPP2P2/RNBR2K1 b - - 3 21
FEN state: rn1r4/pp2pp1p/3k1np1/2p1N1bP/P3P1P1/3q4/bPP2P2/RNBR2K1 b - - 3 21 ; Best move: d3d1
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at d8. Black pawn at a7, black pawn at b7, black pawn at e7, black pawn at f7 and black pawn at h7. Black king at d6, black knight at f6 and black pawn at g6. Black pawn at c5, white knight at e5, black bishop at g5 and white pawn at h5. White pawn at a4, white pawn at e4 and white pawn at g4. Black queen at d3. Black bishop at a2, white pawn at b2, white pawn at c2 and white pawn at f2. White rook at a1, white knight at b1, white bishop at c1, white rook at d1 and white king at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.