r1b2bnr/n1ppqkNp/pp4p1/8/8/BP2p2P/P1PPPPP1/1NRQKBR1 w - - 0 13
FEN state: r1b2bnr/n1ppqkNp/pp4p1/8/8/BP2p2P/P1PPPPP1/1NRQKBR1 w - - 0 13 ; Best move: a3e7
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black knight at a7, black pawn at c7, black pawn at d7, black queen at e7, black king at f7, white knight at g7 and black pawn at h7. Black pawn at a6, black pawn at b6 and black pawn at g6. White bishop at a3, white pawn at b3, black pawn at e3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White knight at b1, white rook at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 13. White to move.