rnb1k2r/2p1b2p/pp2B3/1N2pp2/PP1P2nN/8/1BPQKPP1/R4R2 b - - 0 18
FEN state: rnb1k2r/2p1b2p/pp2B3/1N2pp2/PP1P2nN/8/1BPQKPP1/R4R2 b - - 0 18 ; Best move: c8e6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at c7, black bishop at e7 and black pawn at h7. Black pawn at a6, black pawn at b6 and white bishop at e6. White knight at b5, black pawn at e5 and black pawn at f5. White pawn at a4, white pawn at b4, white pawn at d4, black knight at g4 and white knight at h4. White bishop at b2, white pawn at c2, white queen at d2, white king at e2, white pawn at f2 and white pawn at g2. White rook at a1 and white rook at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.