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Choose from the standard game or two variants: Fischer Random Chess and Red Square Chess.
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Chess and Checkers: The Way to Mastership by Edward Lasker
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20 | | | * | | | | | |
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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.
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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
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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
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20 | o | | o | | o | | | |
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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
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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.
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:
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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.
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.
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