r1b3nr/p1npbk2/4pppp/1pp3Q1/2B2P2/P1N1P3/1PPP2PP/1RB1K1NR w K - 5 13
FEN state: r1b3nr/p1npbk2/4pppp/1pp3Q1/2B2P2/P1N1P3/1PPP2PP/1RB1K1NR w K - 5 13 ; Best move: g5g3
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at c7, black pawn at d7, black bishop at e7 and black king at f7. Black pawn at e6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at b5, black pawn at c5 and white queen at g5. White bishop at c4 and white pawn at f4. White pawn at a3, white knight at c3 and white pawn at e3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 5. Full move number is 13. White to move.