5rk1/rpp2pp1/3p1nbp/p1n3q1/2PPp1PP/PP1BPP2/2Q5/1RB1K1NR b - - 4 21
FEN state: 5rk1/rpp2pp1/3p1nbp/p1n3q1/2PPp1PP/PP1BPP2/2Q5/1RB1K1NR b - - 4 21 ; Best move: e4f3
The current state of the chess board is: Black rook at f8 and black king at g8. Black rook at a7, black pawn at b7, black pawn at c7, black pawn at f7 and black pawn at g7. Black pawn at d6, black knight at f6, black bishop at g6 and black pawn at h6. Black pawn at a5, black knight at c5 and black queen at g5. White pawn at c4, white pawn at d4, black pawn at e4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at b3, white bishop at d3, white pawn at e3 and white pawn at f3. White queen at c2. White rook at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. Black to move.