r1b1kb1r/ppn2p1p/7n/1qppp1B1/3PP1P1/NPP2N1B/P1Q2P1P/R2K3R w kq - 1 12
FEN state: r1b1kb1r/ppn2p1p/7n/1qppp1B1/3PP1P1/NPP2N1B/P1Q2P1P/R2K3R w kq - 1 12 ; Best move: a3b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black knight at c7, black pawn at f7 and black pawn at h7. Black knight at h6. Black queen at b5, black pawn at c5, black pawn at d5, black pawn at e5 and white bishop at g5. White pawn at d4, white pawn at e4 and white pawn at g4. White knight at a3, white pawn at b3, white pawn at c3, white knight at f3 and white bishop at h3. White pawn at a2, white queen at c2, white pawn at f2 and white pawn at h2. White rook at a1, white king at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 12. White to move.