1rbk1b1r/pp1pn2p/B5n1/2p1P1p1/1q2P1P1/NPP2N2/P2K1P1P/R1B1QR2 b - - 8 15
FEN state: 1rbk1b1r/pp1pn2p/B5n1/2p1P1p1/1q2P1P1/NPP2N2/P2K1P1P/R1B1QR2 b - - 8 15 ; Best move: b4b6
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black knight at e7 and black pawn at h7. White bishop at a6 and black knight at g6. Black pawn at c5, white pawn at e5 and black pawn at g5. Black queen at b4, white pawn at e4 and white pawn at g4. White knight at a3, white pawn at b3, white pawn at c3 and white knight at f3. White pawn at a2, white king at d2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at e1 and white rook at f1. Both players have exhausted their castles. Half move number is 8. Full move number is 15. Black to move.