1nb1k2r/r2pb3/2q1pnpp/p7/P1p1PpPP/1pPP1P2/R4NK1/1NBQ2R1 b k - 4 24
FEN state: 1nb1k2r/r2pb3/2q1pnpp/p7/P1p1PpPP/1pPP1P2/R4NK1/1NBQ2R1 b k - 4 24 ; Best move: b3a2
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black rook at a7, black pawn at d7 and black bishop at e7. Black queen at c6, black pawn at e6, black knight at f6, black pawn at g6 and black pawn at h6. Black pawn at a5. White pawn at a4, black pawn at c4, white pawn at e4, black pawn at f4, white pawn at g4 and white pawn at h4. Black pawn at b3, white pawn at c3, white pawn at d3 and white pawn at f3. White rook at a2, white knight at f2 and white king at g2. White knight at b1, white bishop at c1, white queen at d1 and white rook at g1. Black kingside is the only castle move available. Half move number is 4. Full move number is 24. Black to move.