r1bq1bnr/p1p1p1pp/3k1p2/1p1p4/1P1P2N1/2PnPP2/PB1K2PP/R3Q1NR w - - 0 18
FEN state: r1bq1bnr/p1p1p1pp/3k1p2/1p1p4/1P1P2N1/2PnPP2/PB1K2PP/R3Q1NR w - - 0 18 ; Best move: d2d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at g7 and black pawn at h7. Black king at d6 and black pawn at f6. Black pawn at b5 and black pawn at d5. White pawn at b4, white pawn at d4 and white knight at g4. White pawn at c3, black knight at d3, white pawn at e3 and white pawn at f3. White pawn at a2, white bishop at b2, white king at d2, white pawn at g2 and white pawn at h2. White rook at a1, white queen at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.