r3kbnr/pp1bqpp1/1np5/3p3p/P3p1P1/3NP3/RPPPBP1P/1NBQ1KR1 w kq - 4 15
FEN state: r3kbnr/pp1bqpp1/1np5/3p3p/P3p1P1/3NP3/RPPPBP1P/1NBQ1KR1 w kq - 4 15 ; Best move: d3e1
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at d7, black queen at e7, black pawn at f7 and black pawn at g7. Black knight at b6 and black pawn at c6. Black pawn at d5 and black pawn at h5. White pawn at a4, black pawn at e4 and white pawn at g4. White knight at d3 and white pawn at e3. White rook at a2, white pawn at b2, white pawn at c2, white pawn at d2, white bishop at e2, white pawn at f2 and white pawn at h2. White knight at b1, white bishop at c1, white queen at d1, white king at f1 and white rook at g1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 15. White to move.