1n1k1bn1/2q1ppp1/1pp1r3/1p1pP3/1N5p/1r3N2/1BPP1P1P/R3KQ1R b K - 3 20
FEN state: 1n1k1bn1/2q1ppp1/1pp1r3/1p1pP3/1N5p/1r3N2/1BPP1P1P/R3KQ1R b K - 3 20 ; Best move: b3b4
The current state of the chess board is: Black knight at b8, black king at d8, black bishop at f8 and black knight at g8. Black queen at c7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at b6, black pawn at c6 and black rook at e6. Black pawn at b5, black pawn at d5 and white pawn at e5. White knight at b4 and black pawn at h4. Black rook at b3 and white knight at f3. White bishop at b2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white king at e1, white queen at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 20. Black to move.