3qk1nr/r1ppp3/npP4b/p6p/P2N4/1bNBP2P/1P1PKPP1/R1B4R b k - 4 15
FEN state: 3qk1nr/r1ppp3/npP4b/p6p/P2N4/1bNBP2P/1P1PKPP1/R1B4R b k - 4 15 ; Best move: a6b4
The current state of the chess board is: Black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black rook at a7, black pawn at c7, black pawn at d7 and black pawn at e7. Black knight at a6, black pawn at b6, white pawn at c6 and black bishop at h6. Black pawn at a5 and black pawn at h5. White pawn at a4 and white knight at d4. Black bishop at b3, white knight at c3, white bishop at d3, white pawn at e3 and white pawn at h3. White pawn at b2, white pawn at d2, white king at e2, white pawn at f2 and white pawn at g2. White rook at a1, white bishop at c1 and white rook at h1. Black kingside is the only castle move available. Half move number is 4. Full move number is 15. Black to move.