1r1qkbr1/p1p1pp1p/2b1n2n/1p1p2p1/PP4P1/R1NPK2B/2P1PP1P/2B2QNR b - - 6 12
FEN state: 1r1qkbr1/p1p1pp1p/2b1n2n/1p1p2p1/PP4P1/R1NPK2B/2P1PP1P/2B2QNR b - - 6 12 ; Best move: d5d4
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at h7. Black bishop at c6, black knight at e6 and black knight at h6. Black pawn at b5, black pawn at d5 and black pawn at g5. White pawn at a4, white pawn at b4 and white pawn at g4. White rook at a3, white knight at c3, white pawn at d3, white king at e3 and white bishop at h3. White pawn at c2, white pawn at e2, white pawn at f2 and white pawn at h2. White bishop at c1, white queen at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 6. Full move number is 12. Black to move.