r1b3r1/b2k1pp1/1P2p2n/p1Q4p/2pPP2P/5P1B/1Pn4P/RNB2KNR b - - 0 20
FEN state: r1b3r1/b2k1pp1/1P2p2n/p1Q4p/2pPP2P/5P1B/1Pn4P/RNB2KNR b - - 0 20 ; Best move: a7b6
The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at g8. Black bishop at a7, black king at d7, black pawn at f7 and black pawn at g7. White pawn at b6, black pawn at e6 and black knight at h6. Black pawn at a5, white queen at c5 and black pawn at h5. Black pawn at c4, white pawn at d4, white pawn at e4 and white pawn at h4. White pawn at f3 and white bishop at h3. White pawn at b2, black knight at c2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.