rnbq1k1r/p1pp1p1p/Q2b1n2/1p2N1p1/N2P4/7P/PPPKPPP1/R1B2B1R w - - 2 10
FEN state: rnbq1k1r/p1pp1p1p/Q2b1n2/1p2N1p1/N2P4/7P/PPPKPPP1/R1B2B1R w - - 2 10 ; Best move: a6b5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. White queen at a6, black bishop at d6 and black knight at f6. Black pawn at b5, white knight at e5 and black pawn at g5. White knight at a4 and white pawn at d4. White pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white king at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 10. White to move.