r1b2b1r/3pknp1/p1n2p2/1p5p/2pNpBPQ/2P5/PP1NPP1P/R1K2B1R w - - 0 18
FEN state: r1b2b1r/3pknp1/p1n2p2/1p5p/2pNpBPQ/2P5/PP1NPP1P/R1K2B1R w - - 0 18 ; Best move: d4c6
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at d7, black king at e7, black knight at f7 and black pawn at g7. Black pawn at a6, black knight at c6 and black pawn at f6. Black pawn at b5 and black pawn at h5. Black pawn at c4, white knight at d4, black pawn at e4, white bishop at f4, white pawn at g4 and white queen at h4. White pawn at c3. White pawn at a2, white pawn at b2, white knight at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white king at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.