rn3Nn1/2q5/p2b1k1r/1pB1R1pp/2Q5/7N/PPP1PPP1/4KBR1 b - - 0 21
FEN state: rn3Nn1/2q5/p2b1k1r/1pB1R1pp/2Q5/7N/PPP1PPP1/4KBR1 b - - 0 21 ; Best move: b5c4
The current state of the chess board is: Black rook at a8, black knight at b8, white knight at f8 and black knight at g8. Black queen at c7. Black pawn at a6, black bishop at d6, black king at f6 and black rook at h6. Black pawn at b5, white bishop at c5, white rook at e5, black pawn at g5 and black pawn at h5. White queen at c4. White knight at h3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at e2, white pawn at f2 and white pawn at g2. White king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.