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Aron G Reshko vs Oleg Kaminsky
"Kamin Get It" (game of the day Oct-18-2006)
Leningrad Championship (1972)
English Opening: King's English. Four Knights Variation Fianchetto Lines (A29)  ·  1-0


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sac: 24.e6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 7 OF 7 ·  Later Kibitzing>
Jul-05-12  reisanibal: I would have underpromoted to a knight. I know it would need a little bit of work to get to the king side. But it's still winning for white and besides I like knights better than bishops:) I set up the game on my computer (CM9000) and it followed as below (I'm white, CM9k is black): 61. a8=N Qa7 62. g5 hxg5 63. hxg5 fxg5 64. Qg6+ Kg8 65. Qc6 Qf7+ 66. Kg4 Qf6 (queen trade is forced anyway) 67. Qxf6 gxf6 68. Nc7 Kf8 69. Nd5 Kf7 70. Kg3 Kg7 71. Kh3 Kf7 72. Kg4 Kg7 73. Kh5 Kf7 74. Kh6 g4 75. Kh5 g3 76. Ne3 Kg7 77. Kg4 Kf8 78. Kxg3 Ke8 79. Nd5 Kf7 80. Kg4 Kg7 81. Kh5 Kf7 82. Kh6 Ke8 83. Kg7 Kd8 84. Kxf6 Kd7 85. Ke5 Kd8 86. f6 Ke8 87. Ke6 Kf8 88. f7 Kg7 89. Ke7 Kh6 90. f8=Q+ Kg5 91. Qf4+ Kg6 92. Qg4+ Kh7 93. Kf7 Kh8 94. Qh3#
Premium Chessgames Member
  Once: It's all about being able to turn off your powers...

Spiderman wishes he could turn off his sticky fingers when he uses his ipad.

Superman wishes he can disable his x-ray vision when he walks through the old folks home.

And sometimes queens wish they could turn off their ability to move along both ranks and diagonals.

Fun puzzle.

Premium Chessgames Member
  Castleinthesky: I knew it wasn't a rook or queen, but couldn't decide between a bishop or knight. Like <reisanibal>, I had a preference for the knight. I'm glad it ultimately also produced a win (I'll take a correct answer whenever I can get one).
Jul-05-12  James D Flynn: 61.a8=B(not a8=QorR, Qf7+ 62.Qxf7 stalemate) Qb3(if Qb1 63.Bd5 and the threat of Bg8+, Bf7+, Bg6# mate wins)62.Qd8(if 62.Qe6 Qb8 63.g5 hxg5 64.hxg5 Qh2+ 65.Kg4 Qg1+ 66.Kf4 Qxg5+ wins) 67.Qg8(else Bd5wins) Qxg8+ 68.Kxd8 Kg6 wins.
Premium Chessgames Member
  kevin86: I saw this one:a queen or rook promotion leads to stalemate,so a bishop is needed. The extra piece wins pretty easily.
Jul-05-12  bengalcat47: Here is a nice example of under-promoting to a bishop. White: King on c7, Pawns on a6 and e7. Black: King on a8, Pawn on a7, Knight on c8. It is White to play and win. The answer is: 1.e8=B,Ne7; 2.Bf7, Nc6; 3.Bg6 and wins.
Premium Chessgames Member
  Jimfromprovidence: I'm looking at the posts seeing a win if there is a knight promotion. Is there one?

<gofer> <61 a8=N Qa7! (The knight is trapped!) 62 g5 hxg5
63 hxg5 fxg5
64 Qg6+ Kh8
65 Nb6

This is probably winning for white but its a hard slog!>

65...Qb8, below or 65...Qc7 look good for black, threatening 66...Qh2+ with a perpetual.

click for larger view

<reisanibal> <61. a8=N Qa7 62. g5 hxg5 63. hxg5 fxg5 64. Qg6+ Kg8 65. Qc6 Qf7+>

65...Kh7 is much better here.

click for larger view

Black needs to keep the queens on the board and not allow white's king to get to g6 because of the threat of a back rank mate.

Now black too has a threat, 66Qd4, seeing 67Qh4#

Jul-05-12  marcwordsmith: Am I missing something or doesn't 62.Qe6 win a bit more easily? No stopping Bd5 on the next move unless Black wants to trade queens, in which case it's over.
Jul-05-12  Manic: <marcwordsmith>

62.Qe6 Qxe6 63.fxe6 g6#

Jul-05-12  marcwordsmith: OOPS!!!!
Jul-05-12  dragon player: 61.a8(Q) is tempting, but 61...Qf7+ results into stalemate. But it's minorpromotionweek, so this should work:

61.a8(B) Qb6 (or anywhere else)
62.Bd5 g6+ (or else 63.Qg8#)
63.Qxg6+ Kh8

Time to check.


The game went a bit different, lets check Rybka.


well, okay, Qb3 prevents Bd5, but the idea is fine.


Jul-05-12  David2009: A Reshko vs O Kaminsky, 1972 White 61?

In underpromotion week, the B underpromotion is very easy to spot. Would I have found it is any other week?

Winning the puzzle position

click for larger view

against Crafty End Game Trainer requires an adjustment since the EGT assumes all White promotions are to Q: so promote the Pawn to Bishop; and move the K to g5 (White is in illegal double check but who's bothered); then play Kh5 as first move. Link: Enjoy an exceptionally easy victory against the never-discouraged robot!

The N underspromotion 61.a8=N? is met by 61...Qa7! which draws (but you are welcome to check this again starting Kh5 in the next link:

Jul-05-12  dgbuckmeister: I don't understand why Black can't escape with aeven material a likely draw with 61. ..Qxa8 threatening 62.Qxa8 g6#.
Premium Chessgames Member
  SuperPatzer77: <dgbuckmeister: I don't understand why Black can't escape with aeven material a likely draw with 61. ..Qxa8 threatening 62.Qxa8 g6#. >

click for larger view

<dgbuckmeister> You've overlooked the White f-pawn on f5. If {61. a8=B! Qxa8??, 62. Qxa8 g6+ (not mate), 63. fxg6+ White is winning

Final position - White is winning - see diagram below:

click for larger view


Jul-05-12  dgbuckmeister: Thanks SuperPatzer77.
Jul-05-12  M.Hassan: "Medium" White to play 61.?
White is a pawn up.

Soon realized that 61.a8=Qor R is a no no that results in stalemate: <61.a8=Q Qf7+ 62.Qxf7 forced and Black has no move. 1/2-1/2>

61.a8=B Qc7

Jul-05-12  hrobert5: Looking at SuperPatzer77's "final position" board, Black at best can hold out four more moves: K-g7, 64. Q-a7+ K-g8, 65. Q-f7+ K-h8 66. g7+ K-h7 67. g8=Q mate
Premium Chessgames Member
  Sneaky: The greatest under-promotion of all time.
Jul-06-12  trnbg: I think this game is the only practical game in chess history with an underpromotion to a Bishop (or, to be more precise, with an underpromotion to a B. as the only winning move). Is that right?
Jul-06-12  Thanh Phan: At least one other game shown with an underpromotion to a Bishop, Dragoslav Tomic vs Frank Winzbeck D Tomic vs F Winzbeck, 1993 at move 44. cxd8=B avoids stalemate
Premium Chessgames Member
  SuperPatzer77: <hrobert5: Looking at SuperPatzer77's "final position" board, Black at best can hold out four more moves: K-g7, 64. Q-a7+ K-g8, 65. Q-f7+ K-h8 66. g7+ K-h7 67. g8=Q mate >

<hrobert5> I know that. I wanted to show <dgbuckmeister> about my analysis. You should take a look at <dgbuckmeister>'s confusing comment. He actually overlooked the White f-pawn on f5.

63...♔g7, 64. ♕a7+ ♔g8, 65. ♕f7+ ♔h8, 66. ♕h7#


Aug-26-12  reisanibal: Wikipedia claims that "In the actual game, White promoted to a knight. White won the game because of an error by Black (Mller & Pajeken 2008:21920)." n_to_rook_or_bishop
So, which one is correct?
Sep-19-14  Ke2: Awesome. Very few situations need a bishop.
Jan-17-17  Albion 1959: A fascinating game to look at in all it's aspects. From move 61 the position becomes a problem-like study, only this is not a composition, but a real over the board game! Move 61.a8=N does NOT lead to a win. The main line appears to be as follows: 61 a8=N Qa7
62 g5 hxg
63 hxg fxg
64 Qg6+ Kg8
65 Nb6 Qc7!
66 Kxg5 Qg3+
With a draw by perpetual
66 Qe6+ Kh7
67 Nd5 Qh2+
Draws again
67 Qe3 Qh2+
68 Kxg5?? Qh6+
Wins the queen
68 Kg4 Qg2+
Virtually impossible for white to make any progress here: Resinbals' analysis is flawed and has a big hole in it. On move 64 black is not obliged to play Kg8, Kh8! Also if 64 Qg6+ Kg8
65 Qc6 Kh7!
Black does not have to play 65 Qf7?? as given by Resinbal, which is a blunder anyway: Verdict - 61 a8 =N does lead to a win and Resinbal needs a stronger search and more powerful engine!
Jan-17-17  Albion 1959: Correction final comment Verdict - 61 a8=N does not lead to a win. Did not quite proof read it properly before posting!
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