r1b5/p3kp1r/Bp2p1pn/1qpp3p/PPPbQ1PP/4PP2/1B6/R2KN1NR w - - 1 23
FEN state: r1b5/p3kp1r/Bp2p1pn/1qpp3p/PPPbQ1PP/4PP2/1B6/R2KN1NR w - - 1 23 ; Best move: a6b5
The current state of the chess board is: Black rook at a8 and black bishop at c8. Black pawn at a7, black king at e7, black pawn at f7 and black rook at h7. White bishop at a6, black pawn at b6, black pawn at e6, black pawn at g6 and black knight at h6. Black queen at b5, black pawn at c5, black pawn at d5 and black pawn at h5. White pawn at a4, white pawn at b4, white pawn at c4, black bishop at d4, white queen at e4, white pawn at g4 and white pawn at h4. White pawn at e3 and white pawn at f3. White bishop at b2. White rook at a1, white king at d1, white knight at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 23. White to move.