1rb2kn1/pnpp3r/1p5p/5pp1/Pb1Q1P1P/RPP4B/3N1K1P/2B3NR b - - 3 21
FEN state: 1rb2kn1/pnpp3r/1p5p/5pp1/Pb1Q1P1P/RPP4B/3N1K1P/2B3NR b - - 3 21 ; Best move: b4c5
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at f8 and black knight at g8. Black pawn at a7, black knight at b7, black pawn at c7, black pawn at d7 and black rook at h7. Black pawn at b6 and black pawn at h6. Black pawn at f5 and black pawn at g5. White pawn at a4, black bishop at b4, white queen at d4, white pawn at f4 and white pawn at h4. White rook at a3, white pawn at b3, white pawn at c3 and white bishop at h3. White knight at d2, white king at f2 and white pawn at h2. White bishop at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.