r1b1kb1r/pp2n2p/n5q1/1Pp1pPp1/2Pp1PQ1/3P2P1/P2N2KP/R3BBNR b - - 9 20
FEN state: r1b1kb1r/pp2n2p/n5q1/1Pp1pPp1/2Pp1PQ1/3P2P1/P2N2KP/R3BBNR b - - 9 20 ; Best move: c8f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at e7 and black pawn at h7. Black knight at a6 and black queen at g6. White pawn at b5, black pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. White pawn at c4, black pawn at d4, white pawn at f4 and white queen at g4. White pawn at d3 and white pawn at g3. White pawn at a2, white knight at d2, white king at g2 and white pawn at h2. White rook at a1, white bishop at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 9. Full move number is 20. Black to move.