1rqnkbnr/1p2p3/3p1p1p/8/p1p1p1P1/P1P5/1P1P1N1P/RNBb2KR b k - 3 20
FEN state: 1rqnkbnr/1p2p3/3p1p1p/8/p1p1p1P1/P1P5/1P1P1N1P/RNBb2KR b k - 3 20 ; Best move: c8c5
The current state of the chess board is: Black rook at b8, black queen at c8, black knight at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black pawn at e7. Black pawn at d6, black pawn at f6 and black pawn at h6. Black pawn at a4, black pawn at c4, black pawn at e4 and white pawn at g4. White pawn at a3 and white pawn at c3. White pawn at b2, white pawn at d2, white knight at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, black bishop at d1, white king at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 3. Full move number is 20. Black to move.