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Books: Chess and Checkers: The Way to Mastership

E >> Edward Lasker >> Chess and Checkers: The Way to Mastership

Pages:
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The danger involved in an elbow, which is not sufficiently backed
up, is shown in the following game.

Black White

(1) 10-15 23-19
(2) 7-10 22-17
(3) 3-7 25-22
(4) 9-14 29-25
(5) 5-9 17-13
(6) 1-5 22-17
(7) 11-16 26-22
(8) 16-23 27-11
(9) 7-l6 31-26
(10) 8-11 24-19
(11) 16-23 26-19
(12) 11-15 30-26

and White wins through the threat to get two for one by 19-15
after the exchange. Black cannot help the loss of a man.

The reader, who has thoroughly acquainted himself with the
fundamental endings, will have no difficulty in playing a good
game of checkers, if he follows at every move the general
principles discussed in this chapter. When playing over the
countless variations, which are offered in the majority of
checker books, he would find that they are merely illustrations
of the application of those principles to the various openings.

Following are two examples from master play, the careful study of
which will do more good to the student than the perusal of a
great number of games that lack adequate annotation.

Black White

(1) 9-14

The best opening move is probably 11-15, as this enables a speedy
development of the man on 4, who, as previously explained, should
not be kept in the back row. The variations resulting from 11-15
have been so thoroughly analyzed that it is practically
impossible to defeat a player who chooses this opening and knows
the possible variations by heart. It has, therefore, been found
necessary to restrict the players in matches and tournaments by
balloting the first move of Black and White, in order to avoid
too many draws. This is a serious drawback, as it curtails the
freedom of decision, to which a player should be entitled in any
game.

(1) ... 22-17
(2) 11-15

It is hard to tell whether this move of 11-16 or 5-9 is the best.
6-9 and 10-15 are considered weak.

(2) ... 25-22

More aggressive than 23-19, which can safely be played.

(3) 15-19

8-11 or 17-13 or 23-19 are also good moves.

Black White

(3) ... 24-15
(4) 10-19 23-16
(5) 12-19 17-1O
(6) 6-15 21-17
(7) 5-9 29-25
(8) 8-12 25-21
(9) 7-10 17-13
(10) 1-6


32 31 30
+---------------------------------------+
| | o | | o | | o | | | 29
|---------------------------------------|
28 | o | | o | | o | | | |
|---------------------------------------|
| | | | | | o | | o | 21
|---------------------------------------|
20 | | | * | | | | | |
|---------------------------------------|
| | | | * | | | | o | 13
|---------------------------------------|
12 | * | | | | * | | * | |
|---------------------------------------|
| | | | | | | | | 5
|---------------------------------------|
4 | * | | * | | * | | * | |
+---------------------------------------+
3 2 1

DIAGRAM 110.

At first sight, it might seem unwise to break up the King row,
when 9-14 could be played; but the advantage of holding the man
on 13, instead of allowing him to complicate matters by 13-9,
more than counterbalances the disadvantage of moving a back man.
Black could also play (10) 2-6, but this admits of the following
strong attack: (10) 2-6, 27-23; (11) 4-8, 23-16; (12) 12-19, 32-
27; (13) 9-14, 27-24; (14) 3-7 (8-12 would lose), 22-17; (15) 14-
18 (again 8-12 would lose), 17-14; (16) 10-17, 21-14; (17) 1-5,
31-27; (18) 6-10, 24-20; (19) 10-17, 26-22; (20) 18-25, 30-14;
(21) 7-11 (Probably the only move to draw--8-12 would lose on
account of 20-16).

Black White

(10) ... 27-24
(11) 4-8 32-27

22-18 could also be played.

(12) 9-14 27-23

or 22-17 or 24-20.

(13) 3-7 23-16
(14) 12-19 22-17
(15) 7-11 26-23

31-27 would lose through (16) 8-12, 26-22; (17) 11-16, 24-20;
(18) 19-24, 20-11; (19) 24-31, 11-8; (20) 14-18.

32 31 30
+---------------------------------------+
| | | | o | | o | | | 29
|---------------------------------------|
28 | o | | | | | | | |
|---------------------------------------|
| | o | | o | | | | o | 21
|---------------------------------------|
20 | | | * | | | | o | |
|---------------------------------------|
| | | | * | | * | | o | 13
|---------------------------------------|
12 | | | * | | * | | | |
|---------------------------------------|
| | * | | | | * | | | 5
|---------------------------------------|
4 | | | | | * | | | |
+---------------------------------------+
3 2 1

DIAGRAM 111.

(16) 19-26 30-23
(17) 8-12 24-20
(18) 15-18 23-19

20-16 cannot be played on account of (19) 20-27, 16-7; (20) 2-11,
31-24; (21) 12-16.

(19) 11-15 20-16

White can, of course, draw here by 31-26; but 20-16 also draws in
spite of Black's seemingly invincible elbow.

Black White

(20) 15-24 28-19
(21) 2-7 31-26
(22) 18-23

If 18-22, White draws by 19-15; (23) 12-19, 13-9.

(22) ... 26-22


32 31 30
+---------------------------------------+
| | | | | | | | | 29
|---------------------------------------|
28 | | | | | | | | |
|---------------------------------------|
| | | | * | | o | | o | 21
|---------------------------------------|
20 | | | o | | | | o | |
|---------------------------------------|
| | o | | | | * | | o | 13
|---------------------------------------|
12 | * | | | | * | | | |
|---------------------------------------|
| | | | * | | * | | | 5
|---------------------------------------|
4 | | | | | | | | |
+---------------------------------------+
3 2 1

DIAGRAM 112.

Playing for a brilliant finish. He could also draw by 16-11; (23)
7-16, 26-22; (24) 14-18, 22-15; (25) 23-26, 17-14.

Black White

(23) 23-27 16-11
(24) 7-23 22-18

Drawing, although two men down.

The following game illustrates first position:

Black White

(1) 11-15 22-18

This move is not considered as strong as 23-19.

(2) 15-22 25-18
(3) 8-11

12-16 can also be played.

(3) ... 29-25
(4) 4-8 25-22

24-20 is another good move.

(5) 12-16

If 10-15, White obtains a strong game by 23-19.

(5) ... 24-20

Considered best. 24-19 or 22-17 are also playable.

(6) 8-12

He could lay a trap by (6) 10-15. If White replies 27-24 or 28-
24, Black wins by (7) 15-19. 24-15; (8) 16-19, 23-16; (9) 9-14.

Black White

(6) ... 27-24
(7) 10-14 24-19

32 31 30
+---------------------------------------+
| | | | o | | o | | | 29
|---------------------------------------|
28 | o | | | | o | | | |
|---------------------------------------|
| | o | | o | | | | o | 21
|---------------------------------------|
20 | o | | o | | o | | | |
|---------------------------------------|
| | * | | | | * | | * | 13
|---------------------------------------|
12 | * | | * | | * | | | |
|---------------------------------------|
| | | | * | | * | | | 5
|---------------------------------------|
4 | | | | | * | | * | |
+---------------------------------------+
3 2 1

DIAGRAM 113.

In answer to 31-27, Black would win by (8) 7-10, 24-19; (9) 9-13,
18-9; (10) 5-14, 28-24; (11) 13-17, 22-13; (12) 3-7 or (10) ...,
27-24; (11) 1-5, 22-18; (12) 3-7.

(8) 7-10 28-24

32-27 or 19-15 are considered stronger.

(9) 3-7 32-28

This loses. The only drawing move is 30-25.

Black White

(10) 9-13 18-9
(11) 5-14 22-18


32 31 30
+---------------------------------------+
| | | | o | | o | | | 29
|---------------------------------------|
28 | o | | | | | | | |
|---------------------------------------|
| | o | | o | | o | | | 21
|---------------------------------------|
20 | o | | o | | | | * | |
|---------------------------------------|
| | * | | | | | | * | 13
|---------------------------------------|
12 | * | | * | | | | | |
|---------------------------------------|
| | | | * | | | | | 5
|---------------------------------------|
4 | | | | | * | | * | |
+---------------------------------------+
3 2 1

DIAGRAM 114.

Four variations are possible here. If 31-27 or 30-25, Black wins
by (12) 13-17, 22-13; (13) 14-18, etc. (11) ..., 22-17 loses on
account of (12) 13-22, 26-17; (13) 14-18. The sacrifice (11) ...,
21-17; (12) 14-21, 22-18 is met by (13) 10-14, 18-9; (14) 1-5,
26-22; (15) 5-14, 31-26; (16) 13-17.

Black White

(12) 13-17 18-9
(13) 6-13 21-14
(14) 10-17 26-22

In answer to 30-25 Black wins by (15) 7-10, 25-22; (16) 2-6; but
with 31-27 White can offer prolonged resistance, thus:

32 31 30
+---------------------------------------+
| | o | | o | | o | | | 29
|---------------------------------------|
28 | o | | | | o | | | |
|---------------------------------------|
| | | | o | | o | | o | 21
|---------------------------------------|
20 | o | | o | | o | | | |
|---------------------------------------|
| | * | | | | * | | | 13
|---------------------------------------|
12 | * | | * | | | | * | |
|---------------------------------------|
| | | | * | | * | | * | 5
|---------------------------------------|
4 | | | * | | * | | * | |
+---------------------------------------+
3 2 1

DIAGRAM 115.

(14) ..., 31-27; (15) 17-22, 26-17; (16) 13-22, 19-15; (17) 11-
18, 23-14; (18) 1-6, 20-11; (19) 7-16, 27-23; (20) 16-19, 23-16;
(21) 12-19, 24-15; (22) 6-10, 15-6; (23) 2-18, 28-24; (24) 18-23,
24-19; (25) 23-27, 19-15; (26) 27-32. 15-10; (27) 32-27, 10-6;
(28) 27-23, 6-1; (29) 22-26, 1-6; (30) 26-31, 6-9; (31) 30-26, 9-
13; (32) 26-22, 13-9; (33) 23-18. Black has now received first
position and wins.

Black White

(15) 17-26 31-22
(16) 7-10 30-25
(17) 2-6 25-21
(18) 6-9 22-18
(19) 1-5 18-15

White must give up a piece to get through, and Black can then
exchange at his leisure and win without difficulty.

(20) 11-27, etc.



V

PROBLEMS



Checker problems, unlike the Chess problems, are intimately
related to the game itself and do not enable combinations
different in kind from those which occur in the actual fight over
the board.

PROBLEM No. 1. WHITE TO MOVE AND DRAW.

32 31 30
+---------------------------------------+
| | | | | | | | | 29
|---------------------------------------|
28 | | | o | | | | | |
|---------------------------------------|
| | o | | | | | | o | 21
|---------------------------------------|
20 | | | | | | | | |
|---------------------------------------|
| | * | | | | | | * | 13
|---------------------------------------|
12 | | | | | | | | |
|---------------------------------------|
| | | | | | | | | 5
|---------------------------------------|
4 | | | | | | | | |
+---------------------------------------+
3 2 1

DIAGRAM 116.

They usually represent an end game and are distinguished from
ordinary endings only by an unexpected initial move, mostly
embodying a sacrifice of several men. Diagrams 116, 117 and 118
furnish some examples:

PROBLEM No. 2. WHITE TO MOVE AND WIN.

32 31 30
+---------------------------------------+
| | | | | | | | ** | 29
|---------------------------------------|
28 | | | | | | | | |
|---------------------------------------|
| | oo | | o | | o | | | 21
|---------------------------------------|
20 | | | | | | | o | |
|---------------------------------------|
| | | | | | | | * | 13
|---------------------------------------|
12 | | | | | | | * | |
|---------------------------------------|
| | | | | | | | * | 5
|---------------------------------------|
4 | | | | | | | | |
+---------------------------------------+
3 2 1

DIAGRAM 117.

If, in Diagram 116, White tried to reach the King row with his
man 27, Black would win by first position thus: (1) . . ., 27-23,
(2) 16-20, 24-19; (3) 20-24, 19-15; (4) 24-27, 23-19; (5) 27-24,
19-16; (6) 24-19, etc. The only way to draw is to sacrifice first
the man on 21 by 21-17; and then to continue as above. This
enables White to play 23-18, instead of 19-15, exchanging the
King for a man.

The first move in Diagram 117 is 24-28, to which Black must reply
(2) 29-25. White then sacrifices his three men by 17-14 and after
(3) 25-27 (or 9-27) plays 28-32. Black must take the third man,
and White recaptures two men by 32-14, pinning both of the
remaining black men.

PROBLEM No. 3. BLACK TO PLAY AND WIN.

32 31 30
+---------------------------------------+
| | o | | | | o | | o | 29
|---------------------------------------|
28 | o | | o | | o | | | |
|---------------------------------------|
| | | | o | | o | | * | 21
|---------------------------------------|
20 | * | | | | o | | * | |
|---------------------------------------|
| | * | | o | | | | o | 13
|---------------------------------------|
12 | o | | * | | | | * | |
|---------------------------------------|
| | * | | | | * | | * | 5
|---------------------------------------|
4 | | | * | | * | | * | |
+---------------------------------------+
3 2 1

DIAGRAM 118.

This is the longest stroke known to have occurred in actual play.
The game from which the above position arose went as follows:

Black White

(1) 12-16 21-17
(2) 16-20 17-13
(3) 10-14 23-19
(4) 14-17 19-16
(5) 17-21 16-12
(6) 11-16 22-18
(7) 8-11 25-22
(8) 7-10 26-23
(9) 10-14 24-19
(10) 14-17 31-26
(11) 4-8 19-15

Now the position of the diagram is reached, in which Black wins
by

(12) 21-25 30-14
(13) 16-19 23-7
(14) 3-19 12-3
(15) 19-24 28-19
(16) 2-7 3-10
(17) 6-31 13-6
(18) 1-17 22-13
(19) 31-15

Completing a stroke, which removes 18 pieces from the board.

(19) ... 32-27
(20) 15-10 29-25
(21) 5-9

To get the move

(21) ... 13-6
(22) 10-1 25-22
(23) 1-6 22-18
(24) 6-10 27-23
(25) 20-24 23-19
(26) 24-27 18-15
(27) 10-7 19-16
(28) 27-31 15-11
(29) 7-3 16-2
(30) 31-27 11-8
(31) 27-24 8-4
(32) 24-19 4-8
(33) 19-15 8-4
(34) 15-11 and wins.









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