r1bq1kr1/pp1p1pp1/3b2n1/2pn4/P3p1Q1/R1PPP2N/1PNBBPPP/4K2R w K - 6 13
FEN state: r1bq1kr1/pp1p1pp1/3b2n1/2pn4/P3p1Q1/R1PPP2N/1PNBBPPP/4K2R w K - 6 13 ; Best move: g4e4
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 g8. Black pawn at a7, black pawn at b7, black pawn at d7, black pawn at f7 and black pawn at g7. Black bishop at d6 and black knight at g6. Black pawn at c5 and black knight at d5. White pawn at a4, black pawn at e4 and white queen at g4. White rook at a3, white pawn at c3, white pawn at d3, white pawn at e3 and white knight at h3. White pawn at b2, white knight at c2, white bishop at d2, white bishop at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 6. Full move number is 13. White to move.