rn1q1k2/p3p2r/2ppbpp1/Pp1P4/1P2P3/N1P3PQ/3KB1Pn/1R4NR b - - 0 18
FEN state: rn1q1k2/p3p2r/2ppbpp1/Pp1P4/1P2P3/N1P3PQ/3KB1Pn/1R4NR b - - 0 18 ; Best move: e6h3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black king at f8. Black pawn at a7, black pawn at e7 and black rook at h7. Black pawn at c6, black pawn at d6, black bishop at e6, black pawn at f6 and black pawn at g6. White pawn at a5, black pawn at b5 and white pawn at d5. White pawn at b4 and white pawn at e4. White knight at a3, white pawn at c3, white pawn at g3 and white queen at h3. White king at d2, white bishop at e2, white pawn at g2 and black knight at h2. White rook at b1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.