r1bq1k1r/p1pp4/np1Npp2/6pp/2P1PB2/2P4N/PP1K1PPP/1R1Q1BR1 w - - 0 13
FEN state: r1bq1k1r/p1pp4/np1Npp2/6pp/2P1PB2/2P4N/PP1K1PPP/1R1Q1BR1 w - - 0 13 ; Best move: d6c8
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at d7. Black knight at a6, black pawn at b6, white knight at d6, black pawn at e6 and black pawn at f6. Black pawn at g5 and black pawn at h5. White pawn at c4, white pawn at e4 and white bishop at f4. White pawn at c3 and white knight at h3. White pawn at a2, white pawn at b2, white king at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at b1, white queen at d1, 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.