r1bk2nr/1pp3pp/Q3pp2/n5P1/4pP2/1P3N1B/PbPK3P/RN5R b - - 0 15
FEN state: r1bk2nr/1pp3pp/Q3pp2/n5P1/4pP2/1P3N1B/PbPK3P/RN5R b - - 0 15 ; Best move: a8a6
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at g7 and black pawn at h7. White queen at a6, black pawn at e6 and black pawn at f6. Black knight at a5 and white pawn at g5. Black pawn at e4 and white pawn at f4. White pawn at b3, white knight at f3 and white bishop at h3. White pawn at a2, black bishop at b2, white pawn at c2, white king at d2 and white pawn at h2. White rook at a1, white knight at b1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. Black to move.