rnb1kr2/1pp5/p2bp2p/q3p3/P2N4/RPnPP1PP/2P5/1NB1KBR1 w - - 0 21
FEN state: rnb1kr2/1pp5/p2bp2p/q3p3/P2N4/RPnPP1PP/2P5/1NB1KBR1 w - - 0 21 ; Best move: b1c3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at f8. Black pawn at b7 and black pawn at c7. Black pawn at a6, black bishop at d6, black pawn at e6 and black pawn at h6. Black queen at a5 and black pawn at e5. White pawn at a4 and white knight at d4. White rook at a3, white pawn at b3, black knight at c3, white pawn at d3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at c2. White knight at b1, white bishop at c1, 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. White to move.