1nb2bnr/1p1k4/r2pppp1/2p4P/Pp1PPP1q/2NQ4/RBP1K2P/5BNR w - - 0 21
FEN state: 1nb2bnr/1p1k4/r2pppp1/2p4P/Pp1PPP1q/2NQ4/RBP1K2P/5BNR w - - 0 21 ; Best move: c3b5
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black king at d7. Black rook at a6, black pawn at d6, black pawn at e6, black pawn at f6 and black pawn at g6. Black pawn at c5 and white pawn at h5. White pawn at a4, black pawn at b4, white pawn at d4, white pawn at e4, white pawn at f4 and black queen at h4. White knight at c3 and white queen at d3. White rook at a2, white bishop at b2, white pawn at c2, white king at e2 and white pawn at h2. White bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.