#1
@MChessplayer123,
Did the bug/problem/issue ever get fixed/addressed?
#2
@Fenris1066,
(
http://en.lichess.org/forum/general-chess-discussion/why-promote-to-rook-or-bishop-when-you-can-promote-to-queen?page=2 ) since the 1st page mostly didn't have any substantial answers.
"It's extremely rare, but has happened in tournament games." (
http://boardgames.stackexchange.com/questions/6739/is-pawn-promotion-to-rook-or-bishop-something-that-is-seen-in-play )
"Less often, underpromotion to bishop or rook may be necessary not to avoid stalemate, but to induce it and thus save a draw in an otherwise hopeless position." (
en.wikipedia.org/wiki/Promotion_%28chess%29 )
"The most famous example is Saavedra position". (
www.quora.com/Chess/Does-it-ever-make-sense-to-promote-a-pawn-to-a-bishop-or-a-rook-versus-a-queen )
"IN CHESS CURIOSITIES, in 1985, I gave 12 examples of underpromotion in games, of which 5 were 'above triviality as well as of uncontested authenticity.' In this survey, I gave 47 examples, of which perhaps half could be called interesting." (
http://timkr.home.xs4all.nl/chess2/minor.htm )
Bremel - Kertis
Budapest 1948
(
http://en.lichess.org/analysis/8/P7/8/k7/2p5/4K3/8/1q6_w_-_- )
Underpromoting to rook wins. Promoting to queen leads to a stalemate.
(
http://en.lichess.org/analysis/1r5K/6PP/8/8/8/1k4q1/6P1/8_w_-_- )
Underpromoting to a bishop can induce a stalemate.
Sometimes a bishop underpromotion (
http://en.lichess.org/7kB4aVAI/black#106 ) can win faster than a knight underpromotion
(
http://en.lichess.org/l2vuGFmP/black#108 ). Rook/queen promotions would lead to stalemate. Marching the king from the other side of the board would be ... a hassle. Then again, it's possible to win just as quickly in this scenario without promoting the pawn (
http://en.lichess.org/VSbJvEXT/black#106 ). Of course, these are just post-analyses of the training exercise ("puzzle after story 33577"). The attempt itself was awkwardly longer (
http://en.lichess.org/WbAGRxfm/black#122 ).