1rb2rnk/1nppqppp/p3p2P/1p3Q2/1PP3P1/P3PN2/RB1PBP1b/1N3K1R b - - 4 21
FEN state: 1rb2rnk/1nppqppp/p3p2P/1p3Q2/1PP3P1/P3PN2/RB1PBP1b/1N3K1R b - - 4 21 ; Best move: g8h6
The current state of the chess board is: Black rook at b8, black bishop at c8, black rook at f8, black knight at g8 and black king at h8. Black knight at b7, black pawn at c7, black pawn at d7, black queen at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at e6 and white pawn at h6. Black pawn at b5 and white queen at f5. White pawn at b4, white pawn at c4 and white pawn at g4. White pawn at a3, white pawn at e3 and white knight at f3. White rook at a2, white bishop at b2, white pawn at d2, white bishop at e2, white pawn at f2 and black bishop at h2. White knight at b1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. Black to move.