r1bq3r/p1pp3p/2nNpkp1/1p3p2/4nP2/b2PB3/1PPQPNPP/2R1KB1R w - - 0 15
FEN state: r1bq3r/p1pp3p/2nNpkp1/1p3p2/4nP2/b2PB3/1PPQPNPP/2R1KB1R w - - 0 15 ; Best move: d6e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7 and black pawn at h7. Black knight at c6, white knight at d6, black pawn at e6, black king at f6 and black pawn at g6. Black pawn at b5 and black pawn at f5. Black knight at e4 and white pawn at f4. Black bishop at a3, white pawn at d3 and white bishop at e3. White pawn at b2, white pawn at c2, white queen at d2, white pawn at e2, white knight at f2, white pawn at g2 and white pawn at h2. White rook at c1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move.