1rb1k1r1/2pp1Np1/p3pq2/1p1n1Q1p/P1PP1P2/RP2P2P/4B2n/1NB1K2R b K - 0 21
FEN state: 1rb1k1r1/2pp1Np1/p3pq2/1p1n1Q1p/P1PP1P2/RP2P2P/4B2n/1NB1K2R b K - 0 21 ; Best move: f6f5
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black rook at g8. Black pawn at c7, black pawn at d7, white knight at f7 and black pawn at g7. Black pawn at a6, black pawn at e6 and black queen at f6. Black pawn at b5, black knight at d5, white queen at f5 and black pawn at h5. White pawn at a4, white pawn at c4, white pawn at d4 and white pawn at f4. White rook at a3, white pawn at b3, white pawn at e3 and white pawn at h3. White bishop at e2 and black knight at h2. White knight at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 21. Black to move.