r1bqkbnr/1Q2p1p1/n2p4/p6p/1PPp4/N3B2P/P1K1PP2/R4BNn w kq - 0 15
FEN state: r1bqkbnr/1Q2p1p1/n2p4/p6p/1PPp4/N3B2P/P1K1PP2/R4BNn w kq - 0 15 ; Best move: b7e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. White queen at b7, black pawn at e7 and black pawn at g7. Black knight at a6 and black pawn at d6. Black pawn at a5 and black pawn at h5. White pawn at b4, white pawn at c4 and black pawn at d4. White knight at a3, white bishop at e3 and white pawn at h3. White pawn at a2, white king at c2, white pawn at e2 and white pawn at f2. White rook at a1, white bishop at f1, white knight at g1 and black knight at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 15. White to move.