r1bq1k1r/pppp1p1p/4p1p1/1B2bn2/P4n2/1PP1PN1P/RN1P1PP1/2BQKR2 w - - 0 15
FEN state: r1bq1k1r/pppp1p1p/4p1p1/1B2bn2/P4n2/1PP1PN1P/RN1P1PP1/2BQKR2 w - - 0 15 ; Best move: e3f4
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 b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at e6 and black pawn at g6. White bishop at b5, black bishop at e5 and black knight at f5. White pawn at a4 and black knight at f4. White pawn at b3, white pawn at c3, white pawn at e3, white knight at f3 and white pawn at h3. White rook at a2, white knight at b2, white pawn at d2, white pawn at f2 and white pawn at g2. White bishop at c1, white queen at d1, white king at e1 and white rook at f1. Both players have exhausted their castles. Half move number is 0. Full move number is 15. White to move.