r1b2rk1/p3b2p/2p4n/qp1pp1p1/1P1P2P1/N1PQPp1P/P4P2/1RBK1BR1 b - - 0 23
FEN state: r1b2rk1/p3b2p/2p4n/qp1pp1p1/1P1P2P1/N1PQPp1P/P4P2/1RBK1BR1 b - - 0 23 ; Best move: a5c7
The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8 and black king at g8. Black pawn at a7, black bishop at e7 and black pawn at h7. Black pawn at c6 and black knight at h6. Black queen at a5, black pawn at b5, black pawn at d5, black pawn at e5 and black pawn at g5. White pawn at b4, white pawn at d4 and white pawn at g4. White knight at a3, white pawn at c3, white queen at d3, white pawn at e3, black pawn at f3 and white pawn at h3. White pawn at a2 and white pawn at f2. White rook at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.