r1b2rk1/3B1p1p/4pP2/p5p1/P6P/3n1PP1/1P3bR1/R1BKN3 b - - 2 23
FEN state: r1b2rk1/3B1p1p/4pP2/p5p1/P6P/3n1PP1/1P3bR1/R1BKN3 b - - 2 23 ; Best move: f2e1
The current state of the chess board is: Black rook at a8, black bishop at c8, black rook at f8 and black king at g8. White bishop at d7, black pawn at f7 and black pawn at h7. Black pawn at e6 and white pawn at f6. Black pawn at a5 and black pawn at g5. White pawn at a4 and white pawn at h4. Black knight at d3, white pawn at f3 and white pawn at g3. White pawn at b2, black bishop at f2 and white rook at g2. White rook at a1, white bishop at c1, white king at d1 and white knight at e1. Both players have exhausted their castles. Half move number is 2. Full move number is 23. Black to move.