rnb1k1r1/1ppp4/P3B1pp/1Pb1p3/R3Pp1P/2PP1PPR/3B4/1N2K3 w - - 0 23
FEN state: rnb1k1r1/1ppp4/P3B1pp/1Pb1p3/R3Pp1P/2PP1PPR/3B4/1N2K3 w - - 0 23 ; Best move: a6b7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at g8. Black pawn at b7, black pawn at c7 and black pawn at d7. White pawn at a6, white bishop at e6, black pawn at g6 and black pawn at h6. White pawn at b5, black bishop at c5 and black pawn at e5. White rook at a4, white pawn at e4, black pawn at f4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at f3, white pawn at g3 and white rook at h3. White bishop at d2. White knight at b1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. White to move.