rn4nr/1N2pk1p/ppp2ppb/3p1b2/QPPP1P2/N5P1/P3B2P/1RB2K1R b - - 10 20
FEN state: rn4nr/1N2pk1p/ppp2ppb/3p1b2/QPPP1P2/N5P1/P3B2P/1RB2K1R b - - 10 20 ; Best move: f5e4
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at g8 and black rook at h8. White knight at b7, black pawn at e7, black king at f7 and black pawn at h7. Black pawn at a6, black pawn at b6, black pawn at c6, black pawn at f6, black pawn at g6 and black bishop at h6. Black pawn at d5 and black bishop at f5. White queen at a4, white pawn at b4, white pawn at c4, white pawn at d4 and white pawn at f4. White knight at a3 and white pawn at g3. White pawn at a2, white bishop at e2 and white pawn at h2. White rook at b1, white bishop at c1, white king at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 10. Full move number is 20. Black to move.