r1bqkb2/p2npp1r/2pp4/1p3Ppp/P3n2P/1N1N4/1PPPP1P1/1RBQKBR1 b q - 3 13
FEN state: r1bqkb2/p2npp1r/2pp4/1p3Ppp/P3n2P/1N1N4/1PPPP1P1/1RBQKBR1 b q - 3 13 ; Best move: c6c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black knight at d7, black pawn at e7, black pawn at f7 and black rook at h7. Black pawn at c6 and black pawn at d6. Black pawn at b5, white pawn at f5, black pawn at g5 and black pawn at h5. White pawn at a4, black knight at e4 and white pawn at h4. White knight at b3 and white knight at d3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at g1. Black queenside is the only castle move available. Half move number is 3. Full move number is 13. Black to move.