1rbqk1nr/1p1n2p1/p1Bb4/2p4p/P2PPB1P/1P5R/2P2P2/RN2K1N1 w Q - 1 18
FEN state: 1rbqk1nr/1p1n2p1/p1Bb4/2p4p/P2PPB1P/1P5R/2P2P2/RN2K1N1 w Q - 1 18 ; Best move: f4d6
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black knight at d7 and black pawn at g7. Black pawn at a6, white bishop at c6 and black bishop at d6. Black pawn at c5 and black pawn at h5. White pawn at a4, white pawn at d4, white pawn at e4, white bishop at f4 and white pawn at h4. White pawn at b3 and white rook at h3. White pawn at c2 and white pawn at f2. White rook at a1, white knight at b1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 1. Full move number is 18. White to move.