r1b2bnr/pppkpn2/7p/1q6/PPpPQ1p1/6P1/3BPP1P/RN2KBNR w KQ - 6 15
FEN state: r1b2bnr/pppkpn2/7p/1q6/PPpPQ1p1/6P1/3BPP1P/RN2KBNR w KQ - 6 15 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8, black knight at g8 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 and black knight at f7. Black pawn at h6. Black queen at b5. White pawn at a4, white pawn at b4, black pawn at c4, white pawn at d4, white queen at e4 and black pawn at g4. White pawn at g3. White bishop at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 6. Full move number is 15. White to move.