4rNnr/4k1N1/p7/np1q1pPp/3p1P2/3KP3/PPP4P/R1BQ1B1R w - - 5 18
FEN state: 4rNnr/4k1N1/p7/np1q1pPp/3p1P2/3KP3/PPP4P/R1BQ1B1R w - - 5 18 ; Best move: f8g6
The current state of the chess board is: Black rook at e8, white knight at f8, black knight at g8 and black rook at h8. Black king at e7 and white knight at g7. Black pawn at a6. Black knight at a5, black pawn at b5, black queen at d5, black pawn at f5, white pawn at g5 and black pawn at h5. Black pawn at d4 and white pawn at f4. White king at d3 and white pawn at e3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 18. White to move.