1r1qk2r/1pp2pbn/P1n1b2p/3p2p1/P2P1PP1/B1N1P3/2P1N2P/R2KQB1R w k - 3 18
FEN state: 1r1qk2r/1pp2pbn/P1n1b2p/3p2p1/P2P1PP1/B1N1P3/2P1N2P/R2KQB1R w k - 3 18 ; Best move: f4f5
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at f7, black bishop at g7 and black knight at h7. White pawn at a6, black knight at c6, black bishop at e6 and black pawn at h6. Black pawn at d5 and black pawn at g5. White pawn at a4, white pawn at d4, white pawn at f4 and white pawn at g4. White bishop at a3, white knight at c3 and white pawn at e3. White pawn at c2, white knight at e2 and white pawn at h2. White rook at a1, white king at d1, white queen at e1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 3. Full move number is 18. White to move.