1rb2k2/pppp1p1r/2B1p3/4B2p/1P2npP1/P3b2P/R1n5/1N3KNR b - - 1 21
FEN state: 1rb2k2/pppp1p1r/2B1p3/4B2p/1P2npP1/P3b2P/R1n5/1N3KNR b - - 1 21 ; Best move: e4g3
The current state of the chess board is: Black rook at b8, black bishop at c8 and black king at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black rook at h7. White bishop at c6 and black pawn at e6. White bishop at e5 and black pawn at h5. White pawn at b4, black knight at e4, black pawn at f4 and white pawn at g4. White pawn at a3, black bishop at e3 and white pawn at h3. White rook at a2 and black knight at c2. White knight at b1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.