2b3r1/r1qk2bp/npp1p1pn/p2p1pPP/1QPP4/1K6/PP2PPBR/RN4N1 b - - 3 20
FEN state: 2b3r1/r1qk2bp/npp1p1pn/p2p1pPP/1QPP4/1K6/PP2PPBR/RN4N1 b - - 3 20 ; Best move: a6b4
The current state of the chess board is: Black bishop at c8 and black rook at g8. Black rook at a7, black queen at c7, black king at d7, black bishop at g7 and black pawn at h7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at e6, black pawn at g6 and black knight at h6. Black pawn at a5, black pawn at d5, black pawn at f5, white pawn at g5 and white pawn at h5. White queen at b4, white pawn at c4 and white pawn at d4. White king at b3. White pawn at a2, white pawn at b2, white pawn at e2, white pawn at f2, white bishop at g2 and white rook at h2. White rook at a1, white knight at b1 and white knight at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 20. Black to move.