1b2k1nr/3p3p/1pB5/p1PNp1q1/np3pp1/P2b2RP/3PP3/R1BQ1KN1 b k - 2 20
FEN state: 1b2k1nr/3p3p/1pB5/p1PNp1q1/np3pp1/P2b2RP/3PP3/R1BQ1KN1 b k - 2 20 ; Best move: f4g3
The current state of the chess board is: Black bishop at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at d7 and black pawn at h7. Black pawn at b6 and white bishop at c6. Black pawn at a5, white pawn at c5, white knight at d5, black pawn at e5 and black queen at g5. Black knight at a4, black pawn at b4, black pawn at f4 and black pawn at g4. White pawn at a3, black bishop at d3, white rook at g3 and white pawn at h3. White pawn at d2 and white pawn at e2. White rook at a1, white bishop at c1, white queen at d1, white king at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 2. Full move number is 20. Black to move.