r1b1kb1R/1p1p1p1p/p1N1p3/4P3/BPp1q1P1/N3n2P/P1PP4/R1BQ2KR b q - 0 20
FEN state: r1b1kb1R/1p1p1p1p/p1N1p3/4P3/BPp1q1P1/N3n2P/P1PP4/R1BQ2KR b q - 0 20 ; Best move: e4g2
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and white rook at h8. Black pawn at b7, black pawn at d7, black pawn at f7 and black pawn at h7. Black pawn at a6, white knight at c6 and black pawn at e6. White pawn at e5. White bishop at a4, white pawn at b4, black pawn at c4, black queen at e4 and white pawn at g4. White knight at a3, black knight at e3 and white pawn at h3. White pawn at a2, white pawn at c2 and white pawn at d2. White rook at a1, white bishop at c1, white queen at d1, white king at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 20. Black to move.