1r1qk1nr/p1n4p/6p1/PppPpp2/1b1P3P/RPP1BN2/5P1P/1NQBKR2 b k - 7 18
FEN state: 1r1qk1nr/p1n4p/6p1/PppPpp2/1b1P3P/RPP1BN2/5P1P/1NQBKR2 b k - 7 18 ; Best move: b4a3
The current state of the chess board is: Black rook at b8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at c7 and black pawn at h7. Black pawn at g6. White pawn at a5, black pawn at b5, black pawn at c5, white pawn at d5, black pawn at e5 and black pawn at f5. Black bishop at b4, white pawn at d4 and white pawn at h4. White rook at a3, white pawn at b3, white pawn at c3, white bishop at e3 and white knight at f3. White pawn at f2 and white pawn at h2. White knight at b1, white queen at c1, white bishop at d1, white king at e1 and white rook at f1. Black kingside is the only castle move available. Half move number is 7. Full move number is 18. Black to move.