r2k2n1/pb1pp3/2p4r/1P3B2/2Pb1p1p/RP1nq2P/1BQ1P3/3K2NR b - - 0 23
FEN state: r2k2n1/pb1pp3/2p4r/1P3B2/2Pb1p1p/RP1nq2P/1BQ1P3/3K2NR b - - 0 23 ; Best move: d3b2
The current state of the chess board is: Black rook at a8, black king at d8 and black knight at g8. Black pawn at a7, black bishop at b7, black pawn at d7 and black pawn at e7. Black pawn at c6 and black rook at h6. White pawn at b5 and white bishop at f5. White pawn at c4, black bishop at d4, black pawn at f4 and black pawn at h4. White rook at a3, white pawn at b3, black knight at d3, black queen at e3 and white pawn at h3. White bishop at b2, white queen at c2 and white pawn at e2. White king 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 23. Black to move.