rnb2bnr/p2kp1pp/1qpp4/1p3pP1/NP5P/4PP1N/P1PP3K/R1BQ1B1R w - - 5 13
FEN state: rnb2bnr/p2kp1pp/1qpp4/1p3pP1/NP5P/4PP1N/P1PP3K/R1BQ1B1R w - - 5 13 ; Best move: a4b6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black king at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black queen at b6, black pawn at c6 and black pawn at d6. Black pawn at b5, black pawn at f5 and white pawn at g5. White knight at a4, white pawn at b4 and white pawn at h4. White pawn at e3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at c2, white pawn at d2 and white king at h2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 13. White to move.