rnb2b1r/p1ppkppp/7n/1p2p3/8/NP3NPP/P1KPPP2/R1B2B1R w - - 0 10
FEN state: rnb2b1r/p1ppkppp/7n/1p2p3/8/NP3NPP/P1KPPP2/R1B2B1R w - - 0 10 ; Best move: a3b5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black king at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at h6. Black pawn at b5 and black pawn at e5. White knight at a3, white pawn at b3, white knight at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white king at c2, white pawn at d2, white pawn at e2 and white pawn at f2. 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 0. Full move number is 10. White to move.