r2qkb1r/5p1p/p1p1b1pn/1p1pp3/1P1P1P2/P5P1/N1PP3P/R1B2BKR w kq - 0 13
FEN state: r2qkb1r/5p1p/p1p1b1pn/1p1pp3/1P1P1P2/P5P1/N1PP3P/R1B2BKR w kq - 0 13 ; Best move: f4e5
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 f7 and black pawn at h7. Black pawn at a6, black pawn at c6, black bishop at e6, black pawn at g6 and black knight at h6. Black pawn at b5, black pawn at d5 and black pawn at e5. White pawn at b4, white pawn at d4 and white pawn at f4. White pawn at a3 and white pawn at g3. White knight at a2, white pawn at c2, white pawn at d2 and white pawn at h2. White rook at a1, white bishop at c1, white bishop at f1, white king at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.