rn4nr/p1k2p1p/1q2p2R/Pp4p1/R1ppPPP1/BPP3P1/3PN3/1NQ1KB2 b - - 2 20
FEN state: rn4nr/p1k2p1p/1q2p2R/Pp4p1/R1ppPPP1/BPP3P1/3PN3/1NQ1KB2 b - - 2 20 ; Best move: b6b7
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. Black pawn at a7, black king at c7, black pawn at f7 and black pawn at h7. Black queen at b6, black pawn at e6 and white rook at h6. White pawn at a5, black pawn at b5 and black pawn at g5. White rook at a4, black pawn at c4, black pawn at d4, white pawn at e4, white pawn at f4 and white pawn at g4. White bishop at a3, white pawn at b3, white pawn at c3 and white pawn at g3. White pawn at d2 and white knight at e2. White knight at b1, white queen at c1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.