r1b4r/pppk4/6p1/N2n3p/1n5b/P4PRP/1PqP1KB1/RNB4Q b - - 5 20
FEN state: r1b4r/pppk4/6p1/N2n3p/1n5b/P4PRP/1PqP1KB1/RNB4Q b - - 5 20 ; Best move: b4d3
The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7 and black king at d7. Black pawn at g6. White knight at a5, black knight at d5 and black pawn at h5. Black knight at b4 and black bishop at h4. White pawn at a3, white pawn at f3, white rook at g3 and white pawn at h3. White pawn at b2, black queen at c2, white pawn at d2, white king at f2 and white bishop at g2. White rook at a1, white knight at b1, white bishop at c1 and white queen at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 20. Black to move.