rn3b2/4p2r/p2k1p1n/1pp2Ppp/1P2q1Q1/N2PP2b/P1K3P1/R1B2BNR b - - 3 20
FEN state: rn3b2/4p2r/p2k1p1n/1pp2Ppp/1P2q1Q1/N2PP2b/P1K3P1/R1B2BNR b - - 3 20 ; Best move: e4g4
The current state of the chess board is: Black rook at a8, black knight at b8 and black bishop at f8. Black pawn at e7 and black rook at h7. Black pawn at a6, black king at d6, black pawn at f6 and black knight at h6. Black pawn at b5, black pawn at c5, white pawn at f5, black pawn at g5 and black pawn at h5. White pawn at b4, black queen at e4 and white queen at g4. White knight at a3, white pawn at d3, white pawn at e3 and black bishop at h3. White pawn at a2, white king at c2 and white pawn at g2. White rook at a1, white bishop at c1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. Black to move.