4k2r/rb1p1pp1/p1n1p2p/q1b5/1P1P2PP/6P1/PBP1P1B1/RN1K2NR b k - 0 15
FEN state: 4k2r/rb1p1pp1/p1n1p2p/q1b5/1P1P2PP/6P1/PBP1P1B1/RN1K2NR b k - 0 15 ; Best move: c6b4
The current state of the chess board is: Black king at e8 and black rook at h8. Black rook at a7, black bishop at b7, black pawn at d7, black pawn at f7 and black pawn at g7. Black pawn at a6, black knight at c6, black pawn at e6 and black pawn at h6. Black queen at a5 and black bishop at c5. White pawn at b4, white pawn at d4, white pawn at g4 and white pawn at h4. White pawn at g3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at e2 and white bishop at g2. White rook at a1, white knight at b1, white king at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.