1n3knr/1pp2p1p/r2p1b2/p3p1p1/1P1PP2P/N1P1P3/b5B1/R1BK2NR b - - 0 18
FEN state: 1n3knr/1pp2p1p/r2p1b2/p3p1p1/1P1PP2P/N1P1P3/b5B1/R1BK2NR b - - 0 18 ; Best move: a2b3
The current state of the chess board is: Black knight at b8, black king at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at f7 and black pawn at h7. Black rook at a6, black pawn at d6 and black bishop at f6. Black pawn at a5, black pawn at e5 and black pawn at g5. White pawn at b4, white pawn at d4, white pawn at e4 and white pawn at h4. White knight at a3, white pawn at c3 and white pawn at e3. Black bishop at a2 and white bishop at g2. White rook at a1, white bishop at c1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. Black to move.