rnbqkb1r/1p4p1/3p1n2/p3p2p/2p2pPP/NP2PPRN/P1PPQK2/1RB2B2 w kq - 0 13
FEN state: rnbqkb1r/1p4p1/3p1n2/p3p2p/2p2pPP/NP2PPRN/P1PPQK2/1RB2B2 w kq - 0 13 ; Best move: e3f4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7 and black pawn at g7. Black pawn at d6 and black knight at f6. Black pawn at a5, black pawn at e5 and black pawn at h5. Black pawn at c4, black pawn at f4, white pawn at g4 and white pawn at h4. White knight at a3, white pawn at b3, white pawn at e3, white pawn at f3, white rook at g3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at d2, white queen at e2 and white king at f2. White rook at b1, white bishop at c1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. White to move.