r4knr/p2p1p2/b3qp1p/1pp1pP2/2B1P1P1/P5K1/1PPPQ2P/R1B3NR b - - 3 21
FEN state: r4knr/p2p1p2/b3qp1p/1pp1pP2/2B1P1P1/P5K1/1PPPQ2P/R1B3NR b - - 3 21 ; Best move: e6c4
The current state of the chess board is: Black rook at a8, black king at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at f7. Black bishop at a6, black queen at e6, black pawn at f6 and black pawn at h6. Black pawn at b5, black pawn at c5, black pawn at e5 and white pawn at f5. White bishop at c4, white pawn at e4 and white pawn at g4. White pawn at a3 and white king at g3. White pawn at b2, white pawn at c2, white pawn at d2, white queen at e2 and white pawn at h2. White rook at a1, white bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.