r2q1b1r/pppkpp1p/2n5/1B1pPbp1/3n2Q1/NPP4P/P2P1PPR/R1B1K1N1 w Q - 11 13
FEN state: r2q1b1r/pppkpp1p/2n5/1B1pPbp1/3n2Q1/NPP4P/P2P1PPR/R1B1K1N1 w Q - 11 13 ; Best move: g4d4
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black knight at c6. White bishop at b5, black pawn at d5, white pawn at e5, black bishop at f5 and black pawn at g5. Black knight at d4 and white queen at g4. White knight at a3, white pawn at b3, white pawn at c3 and white pawn at h3. White pawn at a2, white pawn at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 11. Full move number is 13. White to move.