r2k1bnr/pbpq1p1p/8/np1pp1p1/P2PP1P1/3B1P2/1PPNK2P/RNBQ2R1 b - - 0 12
FEN state: r2k1bnr/pbpq1p1p/8/np1pp1p1/P2PP1P1/3B1P2/1PPNK2P/RNBQ2R1 b - - 0 12 ; Best move: b5b4
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at c7, black queen at d7, black pawn at f7 and black pawn at h7. Black knight at a5, black pawn at b5, black pawn at d5, black pawn at e5 and black pawn at g5. White pawn at a4, white pawn at d4, white pawn at e4 and white pawn at g4. White bishop at d3 and white pawn at f3. White pawn at b2, white pawn at c2, white knight at d2, white king at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 12. Black to move.