rnb1kr2/2pp1ppp/pp1bpq1n/3P4/PQP2PPP/1P6/R3P3/1N2KBNR w K - 0 17
FEN state: rnb1kr2/2pp1ppp/pp1bpq1n/3P4/PQP2PPP/1P6/R3P3/1N2KBNR w K - 0 17 ; Best move: b4d6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at f8. Black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black bishop at d6, black pawn at e6, black queen at f6 and black knight at h6. White pawn at d5. White pawn at a4, white queen at b4, white pawn at c4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b3. White rook at a2 and white pawn at e2. White knight at b1, 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 17. White to move.