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yy underpromotion = B or R
Compiled by whiteshark
--*--

Sometimes a knight is preferable to a queen in rare positions where a queen would be inferior. <Even in rarer positions a ♖ or ♗ is likewise.>

Examples:

http://www.herderschach.de/Training...http://www.herderschach.de/Training...http://www.herderschach.de/Training...http://www.herderschach.de/Training...

check 4 more: Game Collection: Underpromotions

a8=B! to avoid stalemate
A Reshko vs O Kaminsky, 1972 
(A29) English, Four Knights, Kingside Fianchetto, 71 moves, 1-0

44.cxd8=B! to avoid stalemate
D Tomic vs F Winzbeck, 1993 
(B83) Sicilian, 44 moves, 1-0

61...h1=B+
V Salnikov vs Bezgodov, 1991 
(C40) King's Knight Opening, 64 moves, 0-1

84.f8=B (to prevent stalemate)
E Schallopp vs A Schottlaender, 1885 
(C49) Four Knights, 86 moves, 1-0

88...g1=B+ to force stalemate or allow BxP=
Ponomariov vs Ivanchuk, 2008 
(C93) Ruy Lopez, Closed, Smyslov Defense, 89 moves, 1/2-1/2

65.c8=B+ [spite; draw anyhow]
Ponomariov vs D Baramidze, 2014 
(C95) Ruy Lopez, Closed, Breyer, 65 moves, 1/2-1/2

81.e8=B [draw anyway]
Navara vs Carlsen, 2012 
(D45) Queen's Gambit Declined Semi-Slav, 82 moves, 1/2-1/2

65...axb1=B [egal]
Potkin vs F Vallejo Pons, 2011 
(D10) Queen's Gambit Declined Slav, 66 moves, 1/2-1/2

46...h1=B+ [egal, wird geschlagen]
T O'Donnell vs J Xiong, 2009  
(B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 59 moves, 1-0

25...e1=B+ [egal, wird geschlagen]
Shirov vs Kramnik, 2005 
(C26) Vienna, 39 moves, 0-1

46...e1=B+ [egal...]
V Malakhov vs E Shaposhnikov, 2001 
(A17) English, 64 moves, 1-0

61...g1=R (to prevent stalemate)
J Garcia Padron vs J M Bellon Lopez, 1990 
(A46) Queen's Pawn Game, 61 moves, 0-1

74.f8=R to prevent stalemate
K Ruben vs Sultan Khan, 1930 
(E15) Queen's Indian, 74 moves, 1-0

86.g8=R to prevent stalemate
Sajtar vs Benko, 1954 
(A54) Old Indian, Ukrainian Variation, 4.Nf3, 86 moves, 1-0

74...f1=R (to avoid desperado rook / stalemate)
Ashley vs M Bezold, 1997 
(B43) Sicilian, Kan, 5.Nc3, 74 moves, 0-1

20.exf8=R+ (are you kidding?)
Miles vs J Veerman, 1986 
(B78) Sicilian, Dragon, Yugoslav Attack, 10.castle long, 33 moves, 1-0

56.e8=R#
Keres vs J Turn, 1943 
(C86) Ruy Lopez, Worrall Attack, 56 moves, 1-0

Rook to avoid stalemate
Vasiukov vs V Tukmakov, 1976 
(B84) Sicilian, Scheveningen, 59 moves, 0-1

(3R:Q)116. f1=R! prevents a stalemate trap
D Dordzhieva vs Kosteniuk, 2018 
(D02) Queen's Pawn Game, 117 moves, 0-1

multi-underpromotion 221_f1B,222_g1B,223_h1B,224_c1N, ...
Rybka vs Nakamura, 2008 
(A00) Uncommon Opening, 255 moves, 0-1

124.h8=B+ Kxh8 125.d8=B (spite checks + draw)
Vidmar vs Maroczy, 1932 
(D34) Queen's Gambit Declined, Tarrasch, 129 moves, 1/2-1/2

55...e1=N+ 57...fxe1=B - spite underpromos
Fedorowicz vs E B Meyer, 1978 
(B41) Sicilian, Kan, 59 moves, 1-0

22 games

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