r4b1r/3nkp1p/p2N1n2/2p2bp1/1pPNp3/1P1P4/P4PPP/2RKQB1R b - - 3 21
FEN state: r4b1r/3nkp1p/p2N1n2/2p2bp1/1pPNp3/1P1P4/P4PPP/2RKQB1R b - - 3 21 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black knight at d7, black king at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, white knight at d6 and black knight at f6. Black pawn at c5, black bishop at f5 and black pawn at g5. Black pawn at b4, white pawn at c4, white knight at d4 and black pawn at e4. White pawn at b3 and white pawn at d3. White pawn at a2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at c1, white king at d1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.