r1b1k1n1/p1p5/2n4b/1p1Pppp1/PPPBPQp1/6PP/8/1R2KBNR b Kq - 0 20
FEN state: r1b1k1n1/p1p5/2n4b/1p1Pppp1/PPPBPQp1/6PP/8/1R2KBNR b Kq - 0 20 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black knight at g8. Black pawn at a7 and black pawn at c7. Black knight at c6 and black bishop at h6. Black pawn at b5, white pawn at d5, black pawn at e5, black pawn at f5 and black pawn at g5. White pawn at a4, white pawn at b4, white pawn at c4, white bishop at d4, white pawn at e4, white queen at f4 and black pawn at g4. White pawn at g3 and white pawn at h3. White rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 0. Full move number is 20. Black to move.