r2qk1r1/1b1p1pp1/np1bp3/pQpn2Pp/1NP1PP2/P6P/1P1P4/R1B1KBNR w KQq - 2 15
FEN state: r2qk1r1/1b1p1pp1/np1bp3/pQpn2Pp/1NP1PP2/P6P/1P1P4/R1B1KBNR w KQq - 2 15 ; Best move: b4d5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8 and black rook at g8. Black bishop at b7, black pawn at d7, black pawn at f7 and black pawn at g7. Black knight at a6, black pawn at b6, black bishop at d6 and black pawn at e6. Black pawn at a5, white queen at b5, black pawn at c5, black knight at d5, white pawn at g5 and black pawn at h5. White knight at b4, white pawn at c4, white pawn at e4 and white pawn at f4. White pawn at a3 and white pawn at h3. White pawn at b2 and white pawn at d2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 2. Full move number is 15. White to move.