r1b1k1n1/p1p2p1r/3bp3/1N1p2pp/n2PPN1P/5PP1/PPP1QK2/R1B2B1R w - - 5 18
FEN state: r1b1k1n1/p1p2p1r/3bp3/1N1p2pp/n2PPN1P/5PP1/PPP1QK2/R1B2B1R w - - 5 18 ; Best move: h4g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black knight at g8. Black pawn at a7, black pawn at c7, black pawn at f7 and black rook at h7. Black bishop at d6 and black pawn at e6. White knight at b5, black pawn at d5, black pawn at g5 and black pawn at h5. Black knight at a4, white pawn at d4, white pawn at e4, white knight at f4 and white pawn at h4. White pawn at f3 and white pawn at g3. White pawn at a2, white pawn at b2, white pawn at c2, white queen at e2 and white king at f2. White rook at a1, white bishop at c1, 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.