r1b2k2/2p4n/np1p2p1/p3p2p/1b2P2Q/PPN3PN/2PP4/1RB1K2B b - - 1 21
FEN state: r1b2k2/2p4n/np1p2p1/p3p2p/1b2P2Q/PPN3PN/2PP4/1RB1K2B b - - 1 21 ; Best move: b4c3
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at f8. Black pawn at c7 and black knight at h7. Black knight at a6, black pawn at b6, black pawn at d6 and black pawn at g6. Black pawn at a5, black pawn at e5 and black pawn at h5. Black bishop at b4, white pawn at e4 and white queen at h4. White pawn at a3, white pawn at b3, white knight at c3, white pawn at g3 and white knight at h3. White pawn at c2 and white pawn at d2. White rook at b1, white bishop at c1, white king at e1 and white bishop at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.