1nb2bnr/3p2k1/2r1p2R/ppp2pp1/1PP3P1/P1NPPP2/1R1N4/2BQ1B1K b - - 2 21
FEN state: 1nb2bnr/3p2k1/2r1p2R/ppp2pp1/1PP3P1/P1NPPP2/1R1N4/2BQ1B1K b - - 2 21 ; Best move: g8h6
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7 and black king at g7. Black rook at c6, black pawn at e6 and white rook at h6. Black pawn at a5, black pawn at b5, black pawn at c5, black pawn at f5 and black pawn at g5. White pawn at b4, white pawn at c4 and white pawn at g4. White pawn at a3, white knight at c3, white pawn at d3, white pawn at e3 and white pawn at f3. White rook at b2 and white knight at d2. White bishop at c1, white queen at d1, white bishop at f1 and white king at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move.