rnbq1b2/3pkpp1/1p3n1r/p1p1p3/P1P2PPp/1P3N1P/R1QPPK1R/1NB2B2 w - - 2 13
FEN state: rnbq1b2/3pkpp1/1p3n1r/p1p1p3/P1P2PPp/1P3N1P/R1QPPK1R/1NB2B2 w - - 2 13 ; Best move: g4g5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black bishop at f8. Black pawn at d7, black king at e7, black pawn at f7 and black pawn at g7. Black pawn at b6, black knight at f6 and black rook at h6. Black pawn at a5, black pawn at c5 and black pawn at e5. White pawn at a4, white pawn at c4, white pawn at f4, white pawn at g4 and black pawn at h4. White pawn at b3, white knight at f3 and white pawn at h3. White rook at a2, white queen at c2, white pawn at d2, white pawn at e2, white king at f2 and white rook at h2. White knight at b1, white bishop at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 13. White to move.