rnb2b2/1p2kpRr/P3p3/Q1pp1P1p/8/N2PB3/PqP1PP2/R2K1BN1 b - - 4 23
FEN state: rnb2b2/1p2kpRr/P3p3/Q1pp1P1p/8/N2PB3/PqP1PP2/R2K1BN1 b - - 4 23 ; Best move: b2a1
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black bishop at f8. Black pawn at b7, black king at e7, black pawn at f7, white rook at g7 and black rook at h7. White pawn at a6 and black pawn at e6. White queen at a5, black pawn at c5, black pawn at d5, white pawn at f5 and black pawn at h5. White knight at a3, white pawn at d3 and white bishop at e3. White pawn at a2, black queen at b2, white pawn at c2, white pawn at e2 and white pawn at f2. White rook at a1, white king at d1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. Black to move.