1nN1kbn1/1p1pp2r/2p2pp1/2P5/pP1Nr3/4PQPp/PB3P1P/1RK2B1R b - - 0 20
FEN state: 1nN1kbn1/1p1pp2r/2p2pp1/2P5/pP1Nr3/4PQPp/PB3P1P/1RK2B1R b - - 0 20 ; Best move: f6f5
The current state of the chess board is: Black knight at b8, white knight at c8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at b7, black pawn at d7, black pawn at e7 and black rook at h7. Black pawn at c6, black pawn at f6 and black pawn at g6. White pawn at c5. Black pawn at a4, white pawn at b4, white knight at d4 and black rook at e4. White pawn at e3, white queen at f3, white pawn at g3 and black pawn at h3. White pawn at a2, white bishop at b2, white pawn at f2 and white pawn at h2. White rook at b1, white king at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.