rnbrn1k1/2p4p/Qb2p3/2NP1ppP/P7/1P1PB3/4PP1P/2R1KBNR b K - 0 18
FEN state: rnbrn1k1/2p4p/Qb2p3/2NP1ppP/P7/1P1PB3/4PP1P/2R1KBNR b K - 0 18 ; Best move: b8a6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black rook at d8, black knight at e8 and black king at g8. Black pawn at c7 and black pawn at h7. White queen at a6, black bishop at b6 and black pawn at e6. White knight at c5, white pawn at d5, black pawn at f5, black pawn at g5 and white pawn at h5. White pawn at a4. White pawn at b3, white pawn at d3 and white bishop at e3. White pawn at e2, white pawn at f2 and white pawn at h2. White rook at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 18. Black to move.