rn2kb1r/p3q1pp/b6n/1p3p2/1N1pp3/2Q1PP1P/PPP3P1/R3KBNR w K - 0 15
FEN state: rn2kb1r/p3q1pp/b6n/1p3p2/1N1pp3/2Q1PP1P/PPP3P1/R3KBNR w K - 0 15 ; Best move: e3d4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black queen at e7, black pawn at g7 and black pawn at h7. Black bishop at a6 and black knight at h6. Black pawn at b5 and black pawn at f5. White knight at b4, black pawn at d4 and black pawn at e4. White queen at c3, white pawn at e3, white pawn at f3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white pawn at g2. White rook at a1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 15. White to move.