rn4nr/p1pbqp1p/Bp4pk/3pP1N1/2PN2Q1/8/PP1P1KPP/1RB3R1 w - - 6 18
FEN state: rn4nr/p1pbqp1p/Bp4pk/3pP1N1/2PN2Q1/8/PP1P1KPP/1RB3R1 w - - 6 18 ; Best move: g4f4
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black bishop at d7, black queen at e7, black pawn at f7 and black pawn at h7. White bishop at a6, black pawn at b6, black pawn at g6 and black king at h6. Black pawn at d5, white pawn at e5 and white knight at g5. White pawn at c4, white knight at d4 and white queen at g4. White pawn at a2, white pawn at b2, white pawn at d2, white king at f2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1 and white rook at g1. Both players have exhausted their castles. Half move number is 6. Full move number is 18. White to move.