rn1q2r1/p1pkpp1p/4b1p1/1p1pb1R1/P1P3P1/3R3N/1P1PPn1P/1NBQKB2 b - - 4 12
FEN state: rn1q2r1/p1pkpp1p/4b1p1/1p1pb1R1/P1P3P1/3R3N/1P1PPn1P/1NBQKB2 b - - 4 12 ; Best move: f2d1
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black rook at g8. Black pawn at a7, black pawn at c7, black king at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black bishop at e6 and black pawn at g6. Black pawn at b5, black pawn at d5, black bishop at e5 and white rook at g5. White pawn at a4, white pawn at c4 and white pawn at g4. White rook at d3 and white knight at h3. White pawn at b2, white pawn at d2, white pawn at e2, black knight at f2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 4. Full move number is 12. Black to move.