rnb2k1r/6bp/pppp1B2/4p3/2KPP1p1/PP3P1P/N1P4R/R4BN1 b - - 2 21
FEN state: rnb2k1r/6bp/pppp1B2/4p3/2KPP1p1/PP3P1P/N1P4R/R4BN1 b - - 2 21 ; Best move: g7f6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at f8 and black rook at h8. Black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black pawn at c6, black pawn at d6 and white bishop at f6. Black pawn at e5. White king at c4, white pawn at d4, white pawn at e4 and black pawn at g4. White pawn at a3, white pawn at b3, white pawn at f3 and white pawn at h3. White knight at a2, white pawn at c2 and white rook at h2. White rook at a1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move.