1nb1kbnr/1r2pp1B/1pp2P2/1p4p1/PPP4p/6PP/RBKP4/1N3qNR b k - 6 20
FEN state: 1nb1kbnr/1r2pp1B/1pp2P2/1p4p1/PPP4p/6PP/RBKP4/1N3qNR b k - 6 20 ; Best move: h8h7
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at b7, black pawn at e7, black pawn at f7 and white bishop at h7. Black pawn at b6, black pawn at c6 and white pawn at f6. Black pawn at b5 and black pawn at g5. White pawn at a4, white pawn at b4, white pawn at c4 and black pawn at h4. White pawn at g3 and white pawn at h3. White rook at a2, white bishop at b2, white king at c2 and white pawn at d2. White knight at b1, black queen at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 6. Full move number is 20. Black to move.