r2Nq2r/pb1k1pp1/npp3RB/3p3n/1bPPP2P/P7/1P1NBP2/R2QK3 b - - 0 23
FEN state: r2Nq2r/pb1k1pp1/npp3RB/3p3n/1bPPP2P/P7/1P1NBP2/R2QK3 b - - 0 23 ; Best move: b4d2
The current state of the chess board is: Black rook at a8, white knight at d8, black queen at e8 and black rook at h8. Black pawn at a7, black bishop at b7, black king at d7, black pawn at f7 and black pawn at g7. Black knight at a6, black pawn at b6, black pawn at c6, white rook at g6 and white bishop at h6. Black pawn at d5 and black knight at h5. Black bishop at b4, white pawn at c4, white pawn at d4, white pawn at e4 and white pawn at h4. White pawn at a3. White pawn at b2, white knight at d2, white bishop at e2 and white pawn at f2. White rook at a1, white queen at d1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.