r3qbn1/4ppr1/2np2P1/p3kb1p/P5PP/4K2B/RPP1P3/2BQ2NR b - - 4 21
FEN state: r3qbn1/4ppr1/2np2P1/p3kb1p/P5PP/4K2B/RPP1P3/2BQ2NR b - - 4 21 ; Best move: h5g4
The current state of the chess board is: Black rook at a8, black queen at e8, black bishop at f8 and black knight at g8. Black pawn at e7, black pawn at f7 and black rook at g7. Black knight at c6, black pawn at d6 and white pawn at g6. Black pawn at a5, black king at e5, black bishop at f5 and black pawn at h5. White pawn at a4, white pawn at g4 and white pawn at h4. White king at e3 and white bishop at h3. White rook at a2, white pawn at b2, white pawn at c2 and white pawn at e2. White bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. Black to move.