r3kbnr/p3p2p/1p2bpp1/3n4/P1PP1N1P/4P1Q1/1P3PP1/1RB1KBR1 w k - 0 18
FEN state: r3kbnr/p3p2p/1p2bpp1/3n4/P1PP1N1P/4P1Q1/1P3PP1/1RB1KBR1 w k - 0 18 ; Best move: f4e6
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at e7 and black pawn at h7. Black pawn at b6, black bishop at e6, black pawn at f6 and black pawn at g6. Black knight at d5. White pawn at a4, white pawn at c4, white pawn at d4, white knight at f4 and white pawn at h4. White pawn at e3 and white queen at g3. White pawn at b2, white pawn at f2 and white pawn at g2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 18. White to move.