rqn1kb1r/p1pp4/Bp6/1PP1p1p1/5N1p/P3P1PP/bBKP1P2/RN1Q3R w - - 5 23
FEN state: rqn1kb1r/p1pp4/Bp6/1PP1p1p1/5N1p/P3P1PP/bBKP1P2/RN1Q3R w - - 5 23 ; Best move: a1a2
The current state of the chess board is: Black rook at a8, black queen at b8, black knight at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at d7. White bishop at a6 and black pawn at b6. White pawn at b5, white pawn at c5, black pawn at e5 and black pawn at g5. White knight at f4 and black pawn at h4. White pawn at a3, white pawn at e3, white pawn at g3 and white pawn at h3. Black bishop at a2, white bishop at b2, white king at c2, white pawn at d2 and white pawn at f2. White rook at a1, white knight at b1, white queen at d1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 23. White to move.