rn1q1b2/pb1kp1rp/2ppN3/5n2/p2NP1Q1/6PB/1PPP1P2/R1B1K1R1 w Q - 0 18
FEN state: rn1q1b2/pb1kp1rp/2ppN3/5n2/p2NP1Q1/6PB/1PPP1P2/R1B1K1R1 w Q - 0 18 ; Best move: g4f5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black bishop at f8. Black pawn at a7, black bishop at b7, black king at d7, black pawn at e7, black rook at g7 and black pawn at h7. Black pawn at c6, black pawn at d6 and white knight at e6. Black knight at f5. Black pawn at a4, white knight at d4, white pawn at e4 and white queen at g4. White pawn at g3 and white bishop at h3. White pawn at b2, white pawn at c2, white pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white king at e1 and white rook at g1. White queenside is the only castle move available. Half move number is 0. Full move number is 18. White to move.