1nb4r/rp1k1p1p/2p3p1/p1Bp1n2/q5N1/7Q/R2PPKPP/1N3BR1 b - - 0 18
FEN state: 1nb4r/rp1k1p1p/2p3p1/p1Bp1n2/q5N1/7Q/R2PPKPP/1N3BR1 b - - 0 18 ; Best move: a4a2
The current state of the chess board is: Black knight at b8, black bishop at c8 and black rook at h8. Black rook at a7, black pawn at b7, black king at d7, black pawn at f7 and black pawn at h7. Black pawn at c6 and black pawn at g6. Black pawn at a5, white bishop at c5, black pawn at d5 and black knight at f5. Black queen at a4 and white knight at g4. White queen at h3. White rook at a2, white pawn at d2, white pawn at e2, white king at f2, white pawn at g2 and white pawn at h2. White knight at b1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.