1nb1kb2/1p3pp1/1Qnqr3/prppp3/P1P1P3/RP3N1P/2BP1PP1/1NBKR3 b - - 2 23
FEN state: 1nb1kb2/1p3pp1/1Qnqr3/prppp3/P1P1P3/RP3N1P/2BP1PP1/1NBKR3 b - - 2 23 ; Best move: b5b6
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at b7, black pawn at f7 and black pawn at g7. White queen at b6, black knight at c6, black queen at d6 and black rook at e6. Black pawn at a5, black rook at b5, black pawn at c5, black pawn at d5 and black pawn at e5. White pawn at a4, white pawn at c4 and white pawn at e4. White rook at a3, white pawn at b3, white knight at f3 and white pawn at h3. White bishop at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White knight at b1, white bishop at c1, white king at d1 and white rook at e1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. Black to move.