1n2k1r1/3ppb1p/rp3np1/p1P3B1/7P/1RP3P1/P1P1PP2/4KBNR b - - 5 20
FEN state: 1n2k1r1/3ppb1p/rp3np1/p1P3B1/7P/1RP3P1/P1P1PP2/4KBNR b - - 5 20 ; Best move: f7b3
The current state of the chess board is: Black knight at b8, black king at e8 and black rook at g8. Black pawn at d7, black pawn at e7, black bishop at f7 and black pawn at h7. Black rook at a6, black pawn at b6, black knight at f6 and black pawn at g6. Black pawn at a5, white pawn at c5 and white bishop at g5. White pawn at h4. White rook at b3, white pawn at c3 and white pawn at g3. White pawn at a2, white pawn at c2, white pawn at e2 and white pawn at f2. White king at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 20. Black to move.