r2qkb1r/1ppn2p1/p1n4p/4pBN1/2PpPP2/PP3NP1/3P3P/1R1QK2R w Kkq - 1 18
FEN state: r2qkb1r/1ppn2p1/p1n4p/4pBN1/2PpPP2/PP3NP1/3P3P/1R1QK2R w Kkq - 1 18 ; Best move: f5g6
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 rook at h8. Black pawn at b7, black pawn at c7, black knight at d7 and black pawn at g7. Black pawn at a6, black knight at c6 and black pawn at h6. Black pawn at e5, white bishop at f5 and white knight at g5. White pawn at c4, black pawn at d4, white pawn at e4 and white pawn at f4. White pawn at a3, white pawn at b3, white knight at f3 and white pawn at g3. White pawn at d2 and white pawn at h2. White rook at b1, white queen at d1, white king at e1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 18. White to move.