rn5r/1pk2ppp/p2b2P1/q1p1p3/PP4KP/3N4/2PBP1P1/R3QB1R b - - 6 20
FEN state: rn5r/1pk2ppp/p2b2P1/q1p1p3/PP4KP/3N4/2PBP1P1/R3QB1R b - - 6 20 ; Best move: c5b4
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at h8. Black pawn at b7, black king at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black bishop at d6 and white pawn at g6. Black queen at a5, black pawn at c5 and black pawn at e5. White pawn at a4, white pawn at b4, white king at g4 and white pawn at h4. White knight at d3. White pawn at c2, white bishop at d2, white pawn at e2 and white pawn at g2. White rook at a1, white queen at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 6. Full move number is 20. Black to move.