1r3br1/pb1pk1p1/n1p1p2p/6PP/1qpPN3/1P5N/P3nP2/R1BK1B1R b - - 0 20
FEN state: 1r3br1/pb1pk1p1/n1p1p2p/6PP/1qpPN3/1P5N/P3nP2/R1BK1B1R b - - 0 20 ; Best move: c4b3
The current state of the chess board is: Black rook at b8, black bishop at f8 and black rook at g8. Black pawn at a7, black bishop at b7, black pawn at d7, black king at e7 and black pawn at g7. Black knight at a6, black pawn at c6, black pawn at e6 and black pawn at h6. White pawn at g5 and white pawn at h5. Black queen at b4, black pawn at c4, white pawn at d4 and white knight at e4. White pawn at b3 and white knight at h3. White pawn at a2, black knight at e2 and white pawn at f2. White rook at a1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.