rnb2r2/pp2n1pp/1q1p2k1/2pPp3/P3P2P/1P1B1P2/2P2K2/RN1Q2NR b - - 0 21
FEN state: rnb2r2/pp2n1pp/1q1p2k1/2pPp3/P3P2P/1P1B1P2/2P2K2/RN1Q2NR b - - 0 21 ; Best move: c5c4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black rook at f8. Black pawn at a7, black pawn at b7, black knight at e7, black pawn at g7 and black pawn at h7. Black queen at b6, black pawn at d6 and black king at g6. Black pawn at c5, white pawn at d5 and black pawn at e5. White pawn at a4, white pawn at e4 and white pawn at h4. White pawn at b3, white bishop at d3 and white pawn at f3. White pawn at c2 and white king at f2. White rook at a1, white knight at b1, white queen at d1, 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. Black to move.