1rb1k1nr/1pp1n3/p3p3/6pp/1BPN1Q1P/5K1R/P4PP1/RN2bB2 b - - 7 21
FEN state: 1rb1k1nr/1pp1n3/p3p3/6pp/1BPN1Q1P/5K1R/P4PP1/RN2bB2 b - - 7 21 ; Best move: g5f4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black knight at e7. Black pawn at a6 and black pawn at e6. Black pawn at g5 and black pawn at h5. White bishop at b4, white pawn at c4, white knight at d4, white queen at f4 and white pawn at h4. White king at f3 and white rook at h3. White pawn at a2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, black bishop at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 7. Full move number is 21. Black to move.