r2qkbn1/p1pbp1r1/Ppnp3p/5pN1/5P2/2N5/RPPPP1PP/2BQKB1R w q - 0 18
FEN state: r2qkbn1/p1pbp1r1/Ppnp3p/5pN1/5P2/2N5/RPPPP1PP/2BQKB1R w q - 0 18 ; Best move: g5f3
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at c7, black bishop at d7, black pawn at e7 and black rook at g7. White pawn at a6, black pawn at b6, black knight at c6, black pawn at d6 and black pawn at h6. Black pawn at f5 and white knight at g5. White pawn at f4. White knight at c3. White rook at a2, white pawn at b2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.