I initially reported this bug on Debian Bug Tracking System https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=743716 . But since there was no response, I thought I'd ask for help here.
In the old version 4.6.2-1, when I do rajulocal@hogwarts:~/chess$ xboard -fcp crafty KamarajuKusumanchi_vs_paconov_2014_04_02.pgn the game will start playing automatically. It can be stopped and moved to the beginning of the game by clicking on the "<<" button at the top right. Now if I press ctrl-A, the analyis mode will start and the analyzed moves will appear in a separate window. The analysis mode can also by started by Mode -> Analysis Mode. Once the Analysis Mode starts, I can step through the program by pressing ">" button at the top right. In the new version 4.7.3-1, this behaviour is broken. After loading the game and clicking on the "<<" button, if I press ctrl-A, nothing happens. The Analysis Mode under Mode menu is greyed out and not clickable. In both the cases above, I have crafty 23.4-6 installed. rajulocal@hogwarts:~/chess$ dpkg -l crafty ii crafty 23.4-6 amd64 state-of-the-art chess engine, compatible with xboard rajulocal@hogwarts:~/chess$ uname -a Linux hogwarts 3.2.0-4-amd64 #1 SMP Debian 3.2.54-2 x86_64 GNU/Linux My machine is a mixture of stable (Wheezy) and testing (Jessie). rajulocal@hogwarts:~/chess$ cat KamarajuKusumanchi_vs_paconov_2014_04_02.pgn [Event "Live Chess"] [Site "Chess.com"] [Date "2014.04.02"] [White "KamarajuKusumanchi"] [Black "paconov"] [Result "0-1"] [WhiteElo "977"] [BlackElo "1086"] [TimeControl "10|0"] [Termination "paconov won by resignation"] 1.e4 b6 2.d4 Bb7 3.Nc3 e6 4.Nf3 Nc6 5.d5 exd5 6.exd5 Qe7+ 7.Be3 Nb4 8.a3 Na6 9.Bxa6 Bxa6 10.Qd4 O-O-O 11.O-O-O c5 12.Qa4 Kb7 13.Rhe1 Nf6 14.Bg5 Qd6 15.Ne4 Nxe4 16.Bxd8 Qf4+ 17.Kb1 Nc3+ 0-1 thanks raju -- Kamaraju S Kusumanchi http://malayamaarutham.blogspot.com/
