2b1kb1r/p2pp1pp/1r6/Pp1p1N2/3N1pP1/3Pn3/P2KPP1P/BR1Q2R1 b - - 0 21
FEN state: 2b1kb1r/p2pp1pp/1r6/Pp1p1N2/3N1pP1/3Pn3/P2KPP1P/BR1Q2R1 b - - 0 21 ; Best move: e3d1
The current state of the chess board is: Black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black rook at b6. White pawn at a5, black pawn at b5, black pawn at d5 and white knight at f5. White knight at d4, black pawn at f4 and white pawn at g4. White pawn at d3 and black knight at e3. White pawn at a2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White bishop at a1, white rook at b1, white queen at d1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.