r3k1nr/3n3p/b1p1N3/pN3p2/PpPp2P1/1Q1PbK1P/1P2P1B1/R1B4R b k - 2 20
FEN state: r3k1nr/3n3p/b1p1N3/pN3p2/PpPp2P1/1Q1PbK1P/1P2P1B1/R1B4R b k - 2 20 ; Best move: f5g4
The current state of the chess board is: Black rook at a8, black king at e8, black knight at g8 and black rook at h8. Black knight at d7 and black pawn at h7. Black bishop at a6, black pawn at c6 and white knight at e6. Black pawn at a5, white knight at b5 and black pawn at f5. White pawn at a4, black pawn at b4, white pawn at c4, black pawn at d4 and white pawn at g4. White queen at b3, white pawn at d3, black bishop at e3, white king at f3 and white pawn at h3. White pawn at b2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 20. Black to move.