# A.J.'s Endgame School, King-and-Pawn Endings,        Position # 1.

This is an ending I first saw in a small book of pawn endgames when I was very young. It is also an ending that I have personally pulled on IM's and GM's. Most do NOT solve this position correctly. (Of course I had no clue  ...  when I first saw this position!)  Its a fun position to pull on people - and nearly impossible to solve! (OTB)

This is  BOTH  a text-score page and there is a js-replay board for you to play through the main line of
the  solution. BUT! ... you still should probably have a chess board to be able to follow this game in a
relatively reasonable manner.

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### Player #1 (2200) - Player # 2 (2200)Difficult Pawn Endings, # 37.

#### (Done in) Pensacola, FL,  (USA)  23.07.2003

###### [A.J. Goldsby I]

A study by Bahr, done in 1936.

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White to move, wins.
{Black to move draws?}

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One of the greatest and strongest composers of all time, (Grigoriev); praised this ending
as one of the finest examples of its kind.

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Position check:
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White - King on c1;
White Pawns - a4, b4, b3, f4 and f5.

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Black - King on c7;
Black Pawns - a6, b5, & f6.

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See the most excellent book:  "Pawn Endings,"  by  GM Yuri Averbakh  and also  I Maizelis
Page # 212, Diagram # 677.

Put the following numbers on these squares for White:
e4=1, f3=2, e3=3, d4=4, d3=5, d2=6, e2=7, f2=8.
For Black his square designations are as follows:
d6=1, e7=2, d7=3, c6=4, c7=5; c8=6, d8=7, e8=8.
(White's  'a' square is h5, and Black's  'a'  square is on g7. These number designations help
you to understand what I like to call ...  "The Dance of the Two Kings.")

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1.Kd1! Kd7!;  {Diagram?}
Black maintains the ...  "distant opposition."

This ending is much more difficult than it looks, Black must be able to cover squares
on BOTH sides of the chessboard.

[ Black loses after:  1...Kb7?!2.Ke2 Ka7?; ('??')  3.Kf3 Kb74.Kg4 Kc7;
5.Kh5 Kd76.Kg6 Ke77.Kg7, "+/-"  {Diagram?}
And once the g-pawn falls, the win is relatively simple. ]

2.Ke1!!{Diagram?}
A brilliant, sneaky and totally unexpected move.

[ More conventional methods may not yield White success:
2.Kd2!? Kc63.Kd3 Kd54.a5!? Kc6!5.Kd4 Kd6;
6.Kd3 Kd57.Ke3,  {Diagram?} This is forced for White.

(Note: If There were no White Pawn on b3 in this position,
Black - having pushed White back by means of the OPPOSITION -
would play ...Kc4; and win!)

( 7.Kc3?? Ke4;  ("-/+") )

7...Kc6?;   8.Kd4 Kd6;  "="  {Diagram?}
and the game is drawn.  ]

2...Ke7;  3.Kd2! Kd8!?;  (Maybe - '!')  {Diagram?}
A (futile) attempt to save himself with the aid of  ...  the 'distant opposition.'

[ Black also loses after ...Kd6. For example:
3...Kd6!?4.Ke2! Ke75.Kf3! Kd6!?;  {Diagram?}
Black has few choices here.

( Black loses after:  </=  5...Kf7?; 6.Ke4 Ke7; 7.Kd5 Kd7; 8.a5, "+/-"
or </= 5...Kd8?; 6.Kg4 Ke7; 7.Kh5 Kf7;  8.Kh6 Ke7; 9.Kg7, "+/-" )

6.Kg4! Kd57.Kh5 Kd4;  {Diagram?}
There is no choice for Black in this position.

( 7...Ke4?; 8.Kg6 Kxf4; 9.Kxf6, "+/-"

8.Kg6 Kc3;   9.axb5! axb510.Kxf6 Kxb4;   11.Ke5! Kxb3;
12.f6 Kc313.f7 b414.f8Q, "+/-"  {Diagram?}
with a relatively simple win for White ... from this position. ]

4.Ke2!,  (Probably - '!!')  {Diagram?}
The correct move for White.

[ Right after Fritz 6.0 came out, I gave it this position. It  'thought'  for over an hour,
(while I ate supper); and then played the line:
4.Kd3!? Ke75.axb5?? axb56.Kd4, "~"  {Diagram?}
when the game is probably drawn. ]

White now wins by applying    the theory of  "corresponding squares,"
to help determine exactly where his King needs to be when Black's
King is on certain squares.
4...Ke8!;  5.Kd3! Kd7;  6.Ke3!!,  {Diagram?}
An odd sort of  ...  lateral triangulation.

[ 6.Kd4!? ]

6...Kd6;  7.Ke4!,  {Diagram?}
The correct move.

[ The instinct would normally be to grab the  'opposition'  ...
and play the move:  7.Kd4, '±'  {Diagram?} ]

7...Kc6;  {Diagram?}
Black appears to be defending  ...  he has all the invasion points covered here.

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(The position here after 7...Kc6.)

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White's next maneuver is both surprising and artistic.

8.Kf3!,  {Diagram?}
This odd retreat definitely goes against both training and what you are
taught early on. (To win, you have to advance with your King.)

[ 8.Ke3!? Kd69.Kd4 Kc6; "~" ]

8...Kd5;  {Diagram?}
Black now has no choice.

[ After the simple moves:  8...Kd6?9.Kg4 Kd510.Kh5,
10...Kd411.Kg6,  ("+/-")  {Diagram?}
and White wins ... and this position was covered in an earlier note. ]

9.Kg3!!{Diagram?}
Once again, White must resist the normal impulse to advance with his King.

[ Most players would probably play the move  9.Kg4!?, "~"  {Diagram?}
here without even thinking! Black responds with  9...Ke4; "="  {Diag?}
which probably draws. ]

9...Kd4;  {Diagram?}
Once again, Black is forced down a very narrow path!

[ </= 9...Ke4??10.Kg4, "+/-" ]

10.Kh4!,  (Maybe - '!!')  {Diagram?}
Pretty. White grabs a "distant, and lateral opposition"  ...
en route to the g6-square.

The only problem with this move is that Black gets to White's pawns first ...
BEFORE  White reaches Black's Pawns!!!

[ White should not play:  10.Kg4!? Ke4!; "="  {Diagram?}
and Black will probably draw! ]

10...Kc3;  {Diagram?}
Black finally gets ready to eat some White Pawns and create come counterplay.

[ Black should not play: 10...Ke4?!11.Kg4 Ke312.Kh5! Kxf4;
13.Kg6 Ke514.a5!, ("+/-")  {Diagram?}
and the first player has a fairly simple win from this position. ]

11.axb5!,  {Diagram?}
This precursor move is very necessary for White to win.

[ The continuation of: 11.Kh5!? Kxb412.axb5 axb513.Kg6,
13...Kxb314.Kxf6 b415.Ke5,  '±'  {Diagram?}
is probably better for White, but  not nearly as accurate as the
main line that is given here. ]

11...axb5;  {Diagram?}
Of course Black had to play this move.

[ One student suggested ...Kxb4; in this position. But after the moves:
11...Kxb4??12.bxa6 Kb513.a7,  "+/-"  {Diagram?}
Black quickly wanted to make  ...  "a retraction!" ]

Now the win is relatively simple ... at least compared to what transpired
previously in this problem!!

12.Kh5 Kxb4;  13.Kg6 Kxb3;  14.Kxf6 Kc3!;  15.Ke5! b4;
16.f6 b3;  17.f7 b2;  {Diagram?}
White obviously will promote first, but Black has {vain} hopes of
a draw by perpetual check.

18.f8Q b1Q;   19.Qc5+ Kd2;  20.Qf2+! Kc3;   21.Qd4+ Kb3; {Diagram?}
Black is lost, it does not matter what square he chooses for his King.

[ White also wins after:  21...Kc222.Qe4+ Kc123.Qxb1+,
23...Kxb124.f5,  "+/-" ]

22.Qb6+ Kc2;   23.Qxb1+ Kxb1;  24.f5,  ("+/-")   {Diagram?}
Most players would concede that White is winning in this position!!

truly amazing  'King-and-Pawn'  end-game!
(And one of the most complicated I have ever seen!)

### 1 - 0

(All games - HTML code initially)  Generated with  ChessBase 8.0

### Difficult pawn endings, file no. # 37 A study by Bahr, 1936.  Pensacola, FL,  (USA)  23.07.2003

1.Kd1 Kd7; 2.Ke1 Ke7; 3.Kd2 Kd8; 4.Ke2 Ke8; 5.Kd3 Kd7; 6.Ke3 Kd6; 7.Ke4 Kc6; 8.Kf3 Kd5;
9.Kg3 Kd4; 10.Kh4 Kc3; 11.axb5 axb5; 12.Kh5 Kxb4; 13.Kg6 Kxb3; 14.Kxf6 Kc3; 15.Ke5 b4;
16.f6 b3; 17.f7 b2; 18.f8Q b1Q; 19.Qc5+ Kd2; 20.Qf2+ Kc3; 21.Qd4+ Kb3; 22.Qb6+ Kc2
23.Qxb1+
Kxb1; 24.f5, ("+/-")  & White is winning.

### 1 - 0

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