r2k1br1/1b1pp1p1/p1q5/1pp2p1p/1P2PKnN/N2B4/PBPP1P1P/R5QR w - - 4 18
FEN state: r2k1br1/1b1pp1p1/p1q5/1pp2p1p/1P2PKnN/N2B4/PBPP1P1P/R5QR w - - 4 18 ; Best move: h4f5
The current state of the chess board is: Black rook at a8, black king at d8, black bishop at f8 and black rook at g8. Black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at g7. Black pawn at a6 and black queen at c6. Black pawn at b5, black pawn at c5, black pawn at f5 and black pawn at h5. White pawn at b4, white pawn at e4, white king at f4, black knight at g4 and white knight at h4. White knight at a3 and white bishop at d3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white queen at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 18. White to move.