Alybadix solving examples

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See also Alybadix 2002 solving examples

Program:      Alybadix AP.EXE, vers. 2001
Computer:    Athlon AMD XP (1700+) 1466 MHz, 1 GB (1024 MB) 266 MHz DDR RAM
Diagrams:    Figbadix (built-in in AP.EXE), set FB41
Notation:      Fide (KDTLSP)

Examples of accelerating options:

Q2         Quick mode - each white move is a check or 2#-threat
w++        Each white move is check
f2            Black King has max 2 flight squares
x3           Black has max 3 movable men after each white move
y5           Black has max 5 moves after each white move
yy5         Black has max 5 moves from black's second move up
y0           Black king only can move
K=          King participates in mating/stalemating
m            Moving men and possible promotions for one or more moves given (* = any)
wP-L      White promotes to Bishop only
wC-T      White cannot capture a black rook
Sq-e4      Mating must happen on the square e4
Sq-E        Mating must happen on board's any edge square
v15          Variation search depth  up to 15 plies only

For long direct mates options w++/Q/f are generally the best, for long selfmates options x/y/f.


Contents:
1. Direct mates
2. Selfmates
3. Helpmates
4. Seriesmates
5. Stalemates
6. Fairies



 

1. Direct mates

1.1
Accelerating options Q2/f1 used below. Solving time: 2,5 sec.
This problem is sound (C+, complete test without accelerating options: 45 min 24 sec)

Wolfgang Bär
I. Pr. "DDR-30" 1979

    #10                                                           (9+13)
1.Ld3-b5  Sd8-c6    2.Lb5-e2  Sc6-d8
3.Kf6xe5  Sd8-c6+   4.Ke5-f6  Sc6-d8
5.Le2-b5  Sd8-c6    6.Lb5-d3  Sc6-d8
7.Lh4xg3   f5-f4    8.Lg3-e1+ Tc1xe1
9. b3-b4+ Ka5-a4   10.Ld3xc2 #
7.  -     Sh3-f4    8.Lg3-e1+ Tc1xe1
9. b3-b4+ Ka5-a4   10.Ld3xc2 #

Time(h:m:s): 00:00:02,48
2 variations (1/2)
Moves(All/W/B): 1165993/798868/367125
Test: No-Try/No Setplay/Dual variations
/Q2/f1
/Tree 1-0-558887 (990 MB)          Matebadix-4

White:  Kf6 Ld3 Lh4 Sa6 Sd6 Pb2 Pb3 Pc5 Pg7
Black:  Ka5 Tc1 Th2 Lg8 Sd8 Sh3 Pc2 Pd5 Pd7 Pe5 Pf5 Pg2 Pg3

1.2
Options:
After each white move black rook f8 only is able to move (b1).
Variation search depth 15 plies (v15). This is proper for decreasing
the number of the variations.

Kay Soltsien
II. Pr. "Die Schwalbe" 1959

     #21                                                           (7+3)
 1.Th1-h7  Tf8-g8    2.Kg1-h1  Tg8-e8
 3.Kh1-h2  Te8-f8    4. f2-f3  Tf8-e8
 5.Kh2-h3  Te8-f8    6. g2-g3  Tf8-g8
 7. g3-g4  Tg8-f8    8. f3-f4  Tf8-e8
 9.Kh3-h4  Te8-f8   10. b2-b3  Tf8-g8
11. g4-g5  Tg8-f8   12. f4-f5  Tf8-e8
13.Kh4-h5  Te8-f8   14. b3-b4  Tf8-g8
15. g5-g6  Tg8-f8   16. f5-f6  Tf8-e8
17.Kh5-h6  Te8-f8   18. b4-b5  Tf8-g8
19. g6-g7  Tg8-e8   20.Th7-h8  Te8-f8
21. g7xf8D#

Time(h:m:s): 00:01:56,06
Selected 1/90 variations (1/90)
Moves(All/W/B): 41121971/25527072/15594899
Test: No-Try/No Setplay/Dual variations
/v15/b1
/Tree 1-0-9075154 (990 MB)          Matebadix-4

White:  Kg1 Th1 Pa7 Pb2 Pb6 Pf2 Pg2
Black:  Ka8 Tf8 Pb7

1.3 a)
Options:
 y1 (black has one move only after each white move).
wP-L (white promotes to Bishop only).
This problem is cooked in 14 moves. See 1.3 b)!

Jan Hartong
"Problem" 1952

     #21                                                         (7+14)
 1.Kg4-h3   e5-e4    2.La1-f6   e7xf6
 3. e6-e7   f6-f5    4. e7-e8L  f5-f4
 5.Kh3-h4  Kg1-h2    6.Kh4-g4+ Kh2-g1
 7.Le8-h5  Kg1-h2    8.Lh5-g6+ Kh2-g1
 9.Lg6-h7  Kg1-h2   10.Lh7xe4+ Kh2-g1
11.Le4-h7  Kg1-h2   12.Lh7-d3+ Kh2-g1
13.Ld3-a6   b7xa6   14. b6-b7   a6-a5
15. b7-b8L  a5-a4   16.Lb8xf4   a4-a3
17.Lf4-h6  Kg1-h2   18.Lh6-g5+ Kh2-g1
19.Lg5-h4  Kg1-h2   20.Lh4xg3+ Kh2-g1
21.Lg3-h2 #

Time(h:m:s): 00:00:24,28
1 variations (1/1)
Moves(All/W/B): 6231046/5654222/576824
Test: No-Try/No Setplay/Dual variations
/wP-L/y1
/Tree 1-0-809811 (990 MB)           Matebadix-4

Kg4 Td1 Th8 La1 Pa2 Pb6 Pe6
Kg1 Df2 Te2 Le1 Lf1 Sh1 Pb7 Pd2 Pe3  Pe5 Pe7 Pf3 Pg2 Pg3

1.3 b)
Option: y2 (black has max 2 moves only after each white move).

Jan Hartong
"Problem" 1952

    #14                                                           (7+14)
 1. a2-a4   e5-e4    2.La1-f6   e7xf6
 3. a4-a5   f6-f5+   4.Kg4-h5   f5-f4
 5. e6-e7  Kg1-h2    6.Kh5-g4+ Kh2-g1
 7. a5-a6   b7xa6    8. e7-e8D  a6-a5
 9. b6-b7   a5-a4   10. b7-b8D  a4-a3
11.Db8xf4   a3-a2   12.De8-h5   a2-a1D
13.Dh5-h2+  g3xh2   14.Df4xh2 #

Time(h:m:s): 00:01:38,32
Selected 1/48 variations (1/48)
Moves(All/W/B): 19168257/16309445/2858812
Test: No-Try/No Setplay/Dual variations
/y2
/Tree 1-0-8361026 (990 MB)            Matebadix-4

Kg4 Td1 Th8 La1 Pa2 Pb6 Pe6
Kg1 Df2 Te2 Le1 Lf1 Sh1 Pb7 Pd2 Pe3 Pe5 Pe7 Pf3 Pg2 Pg3

1.4
Dualfree test (4 dualfree variations found). After black
2. move the position is the same as at the beginning!!!

Ing. Nenad Petrovic
I n. "Problem" 1959
(C+)

     #8                                                             (7+12)
1.Ld3? Th1+ 2.Lb1 O-O-O! 3.???

1.Db3-b7!  Ta8-d8   2.Db7-b3   Td8-a8
3.Lb1-d3   Lg2-f1   4.Ld3xf1   Th8-f8
5.Db3-c3   Ke8-d8   6.Sg5-f7+  Kd8-e8
7.Dc3-e5+  Ke8xf7   8.Lf1-c4 #

Time(h:m:s): 00:01:40,84
Selected Dualfree 1/4 variations (1/4)
Moves(All/W/B): 34568045/18285337/16282708
Test: No-Try/No Setplay/Dualfree variations
/Tree 1-0-23374583 (990 MB)
Matebadix-4

White: Ka1 Db3 Lb1 Sg5 Pa2 Pb2 Pd6
Black:  Ke8 Ta8 Th8 Lg2 Pa6 Pa7 Pc6 Pd7 Pf3 Pf4 Pf5 Pg6

1.5
Dualfree test.
P-A.C. writes: "Composed on 8-5-1993, verified in 1997
thanks to Ilkka Blom, published in Europe-Echecs in 1998."
The problem has 960 dualfree variations, but with help of dualfree
test and v1-option only one dualfree variation is searched!

Options:
f0 (black king cannot move)
v1 (variation search depth = 1 ply)

Pierre-Antoine Cathignol
Europe-Echecs, 1998

     #39                                                          (5+10)

White:  Kb1 Sh2 Pa2 Pa4 Pb3
Black:  Ka3 Le5 Pa5 Pa6 Pa7 Pb2 Pb4 Pe7 Pf6 Ph7

 1.Sh2-g4  Le5-d4    2.Sg4-h6  Ld4-b6
 3.Sh6-f5  Lb6-c5    4.Sf5-h4  Lc5-d4
 5.Sh4-g2  Ld4-f2    6.Sg2-f4  Lf2-d4
 7.Sf4-d3  Ld4-c3    8.Sd3-c5  Lc3-d4
 9.Sc5-e4  Ld4-e3   10.Se4-g3   h7-h6
11.Sg3-f5  Le3-c5   12.Sf5-h4  Lc5-d4
13.Sh4-g2  Ld4-f2   14.Sg2-f4  Lf2-d4
15.Sf4-d3  Ld4-c3   16.Sd3-c5  Lc3-d4
17.Sc5-e4  Ld4-e3   18.Se4-g3   h6-h5
19.Sg3xh5  Le3-h6   20.Sh5-g3  Lh6-e3
21.Sg3-f5  Le3-c5   22.Sf5-h4  Lc5-d4
23.Sh4-g2  Ld4-f2   24.Sg2-f4  Lf2-d4
25.Sf4-d3  Ld4-c3   26.Sd3-c5  Lc3-e5
27.Sc5-e6  Le5-c3   28.Se6-d8  Lc3-d4
29.Sd8-c6  Ld4-b6   30.Sc6xe7  Lb6-e3
31.Se7-f5  Le3-c5   32.Sf5-g3  Lc5-d6
33.Sg3-e4  Ld6-f4   34.Se4-c5  Lf4-e5
35.Sc5-e6  Le5-c3   36.Se6-d8  Lc3-d4
37.Sd8-b7  Ld4-e5   38.Sb7xa5  Le5-d6
39.Sa5-c4 #

Time(h:m:s): 00:00:32,14   Dualfree 1 variations (1/1)
Moves(All/W/B): 12247736/4507468/7740268
Test: No-Try/No Setplay/Dualfree variations
/v1/f0
/Tree 1-0-1704868 (990 MB)       Matebadix-4



 

2. Selfmates

2.1 a)
D/T/L/S-promotions, castling and enpassant in the same problem!
Unfortunately, like most (old) long selfmates, also this problem is
cooked in 12 moves - see 2.1 b).

Options:
Pd7, Td2 uncapturable (bu2)
Black has max 2 moves (y2)
Moving men (m): f7D * e7T * c7 * b7L * f1 * e1 * h7S * h7 * e7 * f1

Oscar E. Burger
Chess Pie III, 1936

     S#13                                                          (16+5)
 1. f7-f8D+ Tb8xf8   2. e7xf8T+ Kh8-g7
 3.Sc7-e8+  Kg7-h6   4. b7xa8L  Kh6-g5
 5.Lf1-h3   Kg5-h6   6.  O-O    Kh6-g5
 7. h7-h8S  Kg5-h6   8.Sh8-g6   Kh6-g5
 9.Tf8-h8    d7xe6  10.Lh3-f5    e6xf5
11.Te4-g4+   f5xg4  12. h2-h4+   g4xh3ep
13.La8-h1    h3-h2 #

Time(h:m:s): 00:00:08,12
Selected 1/6 variations (1/6)
Moves(All/W/B): 2595874/2190415/405459
Test: No-Try/No Setplay/All variations
/m/bu2/y2
/Tree 1-0-2066458 (990 MB)             Selfbadix-4

White: Ke1 Dc1 Te4 Th1 Ld6 Lf1 Sc7 Sf6 Pb7
             Pe5 Pe6 Pe7 Pf7 Ph2 Ph5 Ph7
Black:  Kh8 Tb8 Td2 La8 Pd7

2.1 b)
Extra solution  (short cook) for 2.1 a).

Options:
Pd7, Td2 uncapturable (bu2)
Black has max 1 move (y1)

Oscar E. Burger
Chess Pie III, 1936

     S#12                                                          (16+5)
 1. f7-f8D+ Tb8xf8    2. e7xf8T+ Kh8-g7
 3.Te4-g4+  Kg7-h6    4. b7xa8L   d7xe6
 5.Sc7-d5    e6xd5    6.Tg4-g2    d5-d4
 7.La8-e4    d4-d3    8.Sf6-g8+  Kh6xh5
 9.Le4-f3+  Kh5-h4   10.Dc1-c4+  Kh4-h3
11.Tg2-g4+  Td2-g2   12.Lf3-d1    d3-d2 #

Time(h:m:s): 00:04:40,12
Selected 1/35 variations (1/35)
Moves(All/W/B): 61976236/55656816/6319420
Test: No-Try/No Setplay/All variations
/bu2/y1
/Tree 1-0-46895379 (990 MB)
Selfbadix-4

White:  Ke1 Dc1 Te4 Th1 Ld6 Lf1 Sc7 Sf6 Pb7
              Pe5 Pe6 Pe7 Pf7 Ph2 Ph5 Ph7
Black:  Kh8 Tb8 Td2 La8 Pd7
 

 

2.2
This selfmate problem is sound ( C+, two variations).
Testing time 4,18 sec (yy1), 39 min (complete test).

Option yy1 (black has max 1 move from black's second move up).

Petko Petkov
Schach 1986, 3. Pr.

     S#8                                                          (13+5)
1.Td8-b8    c4-c3   2. d7-d8L+ Ke7-e8
3.Ld8-c7+  Ke8-e7   4.Lc7-d6+  Ke7xe6
5.Ld6xc5+  Ke6-d5   6.Da7-d7+  Kd5-c4
7.Dd7-e6+  Kc4-d3   8.Lf2-e3    c3-c2 #
1.  -       e4-e3   2. d7-d8S+ Ke7-e8
3.Sd8-b7+  Ke8-e7   4.Sb7-d6+  Ke7xe6
5.Sd6xc4+  Ke6-d5   6.Da7xc5+  Kd5-e4
7.Sc4-d6+  Ke4-d3   8.Lf2-g1    e3-e2 #

Time(h:m:s): 00:00:04,18
2 variations (1/2)
Moves(All/W/B): 1972297/1282159/690138
Test: No-Try/No Setplay/Dual variations
/yy1
/Tree 1-0-1004104 (990 MB)
Selfbadix-4

White: Kd1 Da7 Tc6 Td8 Lf2 Sf7 Pd7 Pe5 Pe6 Pg2 Pg3 Pg4 Pg7
Black:  Ke7 Pc4 Pc5 Pd2 Pe4



 

3. Helpmates

3.1
Helpmate in 10 moves. Complete test.

Gabor Cseh
The Problemist, 1997
1st Prize
(C+)

     H#10                                                        (8+11)
1. h7-h6   d7-d8D   2. h6-h5  Dd8-d5
3.Sg2xh4+ Dd5-g2+   4.Sh4xg2   e7-e8L
5. h5-h4  Le8-c6    6.Sg2-f4+ Lc6-g2
7.Sf4-d5   b5-b6    8.Sd5-c7   b6-b7
9.Sc7xa8   b7xa8D  10.Lh3xg2+ Da8xg2 #
 

Time(h:m:s): 00:00:00,11
1 variations (1/1)
Moves(All/W/B): 14454/6227/8227
Test: /No Setplay/All variations
/Tree 1-0-7283 (990 MB)
Helpbadix C

White: Kf1 Sa8 Pb5 Pd2 Pd7 Pe5 Pe7 Ph4
Black:  Kh2 Lh3 Sg2 Sh1 Pd3 Pd4 Pe6 Pf2 Pg3 Pg4 Ph7



 

4. Seriesmates

4.1
Serieshelpmate, complete test using the intelligent mode.

C. Jonsson
Ideal-mate review, 53/1994
(C+)

     SH#16                                                        (3+5)
 1. f2-f1L Lf1-e2    3.Le2-d1   e3-e2
 5. e2-e1D De1xe6    7.De6-a2   e7-e5
 9. e5-e4   e4-e3   11. e3-e2   e2-e1T
13.Te1-e4  Te4-a4   15.Sc2-b4  Ld1-b3
16.Sc7-b5 #

Time(h:m:s): 00:00:02,36
1 variations (1/1)
Moves(All/W/B): 200530/4/200526
Test: /No Setplay/All variations
/Tree 1-0-74689 (990 MB)
Seriehelpbadix Intelligent
 

White:  Kc1 Sc7 Pe6
Black:  Ka3 Sc2 Pe3 Pe7 Pf2

 

4.2
Serieshelpmate. The improved Intelligent mode 2001 is very quick
in this genre. Complete (100%, C+) test!

George Sphicas
Sp. Pr. "The Problemist" 1985
(C+)

    SH#54                                                        (15+6)
 1. g5-g4   g4xf3    3.Kh5-g4   h6-h5
 5. h5-h4  Kg4-h5    7.Kh5-h6  Kh6-g7
 9.Kg7xg8  Kg8-f7   11.Kf7-e8  Ke8-d7
13.Kd7xc6  Kc6xd6   15.Kd6-d7  Kd7-e8
17.Ke8-f7  Kf7-g7   19.Kg7-h6  Kh6-h5
21.Kh5-g4  Kg4-g3   23.Kg3xh2  Kh2xh3
25.Kh3-g2   h4-h3   27. h3-h2   h2-h1S
29.Sh1-g3  Sg3xf5   31.Sf5-g3   f6-f5
33. f5xe4   e4xd3   35. d3xc2   c2-c1L
37.Lc1xb2  Lb2xa3   39.La3-c1   a4-a3
41. a3-a2   a2-a1T  43.Ta1xa5  Ta5-h5
45. a6-a5   a5-a4   47. a4-a3   a3-a2
49. a2-a1D Da1-h8   51.Lc1-e3  Le3-g1
53.Th5-h1  Dh8-h2   54.Sg6-f4 #

Time(h:m:s): 00:04:20,79
1 variations (1/1)
Moves(All/W/B): 15626333/84/15626249
Test: /No Setplay/All variations
/Tree 1-0-3718456 (990 MB)
Seriehelpbadix Intelligent 2001

White:  Ke1 Df3 Tc6 Th2 Ld6 Lg8 Sg6 Sh3 Pa3 Pa5 Pb2 Pc2 Pd3 Pe4 Pf5
Black:  Kh5 Pa4 Pa6 Pf6 Pg5 Ph6

4.3
Edge/Corner mate is impossible since black
Bishop on black square is needed for this!

Option: Sq-M (Middle mate)

Jacob Mintz
Ideal-Mate Review, 1989
(C+)

    SH#27                                                         (2+6)
 1.Kh4-g4   h5-h4    3. h4-h3   h3-h2
 5. h2-h1L Lh1-e4    7.Le4-g6  Kg4-f5
 9.Kf5-f6  Lg6-f7   11.Lf7-g8  Kf6-f7
13.Sd5-f6   d6-d5   15. d5-d4   d4-d3
17. d3-d2   d2-d1D  19.Dd1-d6  Dd6-e7
21. d7-d5   d5-d4   23. d4-d3   d3-d2
25. d2-d1T Td1-d8   27.Td8-f8  Lh7-g6 #

Time(h:m:s): 00:00:10,49
1 variations (1/1)
Moves(All/W/B): 773826/21/773805
Test: /No Setplay/All variations
/Sq-M

White:  Kh6 Lh7
Black:  Kh4 Sd5 Se6 Pd6 Pd7 Ph5



 

5. Stalemates

5.1
Example of Doublemaximummer (MaxMax) - white and black must
make their geometrically longest moves. Many enpassant moves!

Theodor Steudel & Dr Hans Staudte
2. e. E. "Die Schwalbe" 1966
(C+)

     =21                 MaxMax                          (10+9)
 1.Sf4-e2  Ta1-h1    2.Se2-c3  Th1-a1
 3.Sc3-b1  Ta1xa4    4.Sb1-c3  Ta4-h4
 5.Sc3-e2  Th4-a4    6.Se2-f4  Ta4xf4
 7.Ke3xf4   a7-a5    8. b5xa6   b7-b5
 9. c5xb6   c7-c5   10. d5xc6   d7-d5
11. e5xd6   e7-e5+  12. f5xe6   f7-f5
13. g5xf6   g7-g5+  14. h5xg6  Kb8-c8
15.Kf4-g5  Kc8-d8   16.Kg5-h6  Kd8-e8
17.Kh6-g7  Ke8-d8   18.Kg7-f8  Kd8-c8
19.Kf8-e7  Kc8-b8   20.Ke7-d8  Kb8-a8
21.Kd8-c7 =

Time(h:m:s): 00:00:11,43
Selected 1/14 variations (1/14)
Moves(All/W/B): 5069453/3517271/1552182
Test: No-Try/No Setplay/Dual variations
/Tree 1-0-1030397 (990 MB)            Matebadix-4

White:  Ke3 Sf4 Pa4 Pb5 Pc5 Pd5 Pe5 Pf5 Pg5 Ph5
Black:  Kb8 Ta1 Pa7 Pb7 Pc7 Pd7 Pe7 Pf7 Pg7
 



 

6. Fairies

6.1
Two fairy pieces. Flamingo is the same as (1:6)-Leaper.

Ludvig Zagler
Problem Kiste, no. 4110
(C+)
1.Kh8-g7   Fd8-c2   2.Kg7-f6   Fc2-b8
3.Kf6-e5   Ga8-h8   4.Ke5-d4   Fb8-h7
5.Kd4-c3   Gh8-h1   6.Kc3-b2   Fh7-g1
7.Kb2-a1   Kd1-c2 #

Time(h:m:s): 00:00:00,93
1 variations (1/1)
Moves(All/W/B): 93141/41033/52108
Test: /No Setplay/All variations
/Tree 1-0-32018 (990 MB)
Fairybadix-Helpbadix

White:  Kd1 Fd8 Ga8
Black:  Kh8
Flamingo d8, Grasshopper-6 a8

     H#7                                                              (3+1)
 

6.2
Several fairy pieces. Dualfree test done.

J. Brügge
1. Pr., Die Schwalbe, 1982
(C+)

     #2                                                            (9+18)
1.Sg5-e4   Th3-c3   2.Lc8xb7 #
           Th4xe4   2.Lc8xb7 #
           Lh1xe4   2.Ga1-b4 #
           Lh2-d6   2.Lc8xb7 #
           Cf5xe8   2.Ga1-b4 #
           Cf5-c4   2.Ga1-b4 #
           Lf8xd8   2.Ga1-b4 #
           Nb2-d6   2.Se8-c7 #
           Nb2-d3   2.Ga1-b3 #
           Ng8-e7   2.Lc8xb7 #
           Ng8-c6   2.Lc8xb7 # 
           Ng8-a5   2.Ga1-b4 # 

Time(h:m:s): 00:00:00,05
Dualfree 12 variations (1/12)
Moves(All/W/B): 1047/815/232
Test: No-Try/No Setplay/Dualfree variations
Fairybadix-Matebadix-4
 

White:  Ka8 Lc8 Se8 Sg5 Sh5 Ca2 Cb8 Ga1 Gd8
Black:  Ka6 Th3 Th4 Lh1 Lh2 Pb5 Pb6 Pb7 Cf5 Ge1 Gc2 Gd2 Gf7 Hf6 Lf8 Nb2 Ng8 Zh7

Camel a2,b8,f5, Gnu a1,e1, Grasshopper c2,d2,d8,f7, TL-hunter f6, Lion f8, Nightrider b2,g8, Zebra h7
 

6.3
Orphan gets its power from opponent's
attacking men (also orphans).

Jean-Marc Loustau & Denis Blondel
3e Pr. "Probleemblad" 1985
(C+)

     #2                                                            (11+8)
1.Tg2-h2    f2-f1D  2.Of3xc3 #
            f2-f1T  2.Oc7xc3 #
            f2-f1L  2.Sb4-c6 #
            f2-f1S  2.Sa3-c2 #
            f2-f1O  2.Th2-d2 #

Time(h:m:s): 00:00:00,11
5 variations (1/5)
Moves(All/W/B): 199/174/25
Test: No-Try/No Setplay/Dual variations
Fairybadix-Matebadix-4

White: Ka4 Tg2 Sa3 Sb4 Oa6 Oc7 Od6 Oe6 Of3 Og3 Oh3
Black:  Kd4 Pd5 Pf2 Oc3 Oc8 Oe4 Of7 Og4

Orphan a6,c3,c7,c8,d6,e4,e6,f3,f7,g3,g4,h3
 

6.4
Special board. Promoting of the white pawns not allowed. Therefore Blocks used
instead of Edge-Blocks (see next example)! Block is unmovable and uncapturable.

T.R. Dawson
Bolton Football Field, 1911
"Revolver practice"
(C+)

      #21                                                         (8+30)
 1.Sh1-g3  Ka3-b3    2.Tg1-h1  Kb3-a3
 3.Sf3-g1  Ka3-b3    4.Tf2-f3  Kb3-a3
 5.Le3-f2  Ka3-b3    6.Tf3-e3  Kb3-a3
 7.Sg1-f3  Ka3-b3    8.Th1-g1  Kb3-a3
 9.Sg3-h1  Ka3-b3   10.Lf2-g3  Kb3-a3
11.Sh1-f2  Ka3-b3   12.Tg1-h1  Kb3-a3
13.Sf3-g1  Ka3-b3   14.Te3-f3  Kb3-a3
15.Kd3-e3  Ka3-b3   16.Sf2-d3  Kb3-a3
17.Ke3-f2  Ka3-b3   18.Tf3-e3  Kb3-a3
19.Kf2-f3  Ka3-b3   20.Sd3-f2  Kb3-a3
21.Te3xc3 #

Time(h:m:s): 00:00:00,05
1 variations (1/1)
Moves(All/W/B): 1540/892/648
Test: No-Try/No Setplay/All variations
/Tree 1-0-136 (990 MB)
Fairybadix-Matebadix-4

 

White:  Kd3 Tf2 Tg1 Le3 Sf3 Sh1 Pg2 Ph2
Black:  Ka3 Lc3 Ba1 Ba2 Ba4 Ba5 Bb1 Bb2 Bb4 Bb5 Bc1 Bc2 Bc4 Bc5 Bd1 Bd2 Bd4 Bd5 Be1 Be2 Be4 Be5 Bf1 Bf4 Bf5 Bg4 Bg5 Bh3 Bh4 Bh5

Block a1,a2,a4,a5,b1,b2,b4,b5,c1,c2,c4,c5,d1,d2,d4,d5,e1,e2,e4,e5,f1,f4,f5,g4,g5,h3,h4,h5
 
 
 
6.5 a)
Board size 4 x 4 squares.
If possible settle the board 8-symmetrically on the 8x8 board as in a), since Alybadix solves then quicker, if the position tree is in use (less symmetrical positions => less moves)!
6.5 b)
With help of the fairy 'piece' Edge-Block
it is easy to design boards of  different
size and shape so that moves work correctly
(pawn row 2, promotions, circe-reborns).

Ilkka Blom
4 x 4 board example

     #10                                                       (2+51)                #10                                                       (22+3)

a)
1. e4-e6D Sd5-f4    2.De6-c4  Sc3-e4    3.Dc4-d4  Se4-c5    4.Dd4xc5  Sf4-d3
5.Dc5-d5+ Kf3-e3    6.Kc6-d6  Ke3-f4    7.Dd5-c4+ Kf4-e3    8.Kd6-e6  Ke3-f3
9.Ke6-f5  Sd3-c5   10.Dc4-f4 #

Time(h:m:s): 00:00:00,77
Selected 1/88 variations (1/88)
Moves(All/W/B): 108096/76321/31775
Test: No-Try/No Setplay/Dual variations
/Tree 1-0-32436 (990 MB)
Fairybadix-Matebadix-4

White: Kc6 Pe4
Black:  Kf3 Sc3 Sd5 Ea1 Ea2 Ea3 Ea4 Ea5 Ea6 Ea7 Ea8 Eb1 Eb2 Eb3 Eb4 Eb5 Eb6 Eb7 Eb8 Ec1 Ec2 Ec7 Ec8 Ed1 Ed2
             Ed7 Ed8 Ee1 Ee2 Ee7 Ee8 Ef1 Ef2 Ef7 Ef8 Eg1 Eg2 Eg3 Eg4 Eg5 Eg6 Eg7 Eg8 Eh1 Eh2 Eh3 Eh4  Eh5 Eh6 Eh7 Eh8

Edge-Block a1,a2,a3,a4,a5,a6,a7,a8,b1,b2,b3,b4,b5,b6,b7,b8,c1,c2,c7,c8,d1,d2,d7,d8,e1,e2,e7,e8,f1,f2,f7,f8,g1,g2,g3,g4,g5,g6,g7,g8
                     h1,h2,h3,h4,h5,h6,h7,h8
 

6.6
Seriesselfmate, neutral pieces, circe.

Krasimir Gandev & Venelin Alaikov
"Mat" 1982
(C+)

     SS#10                      Circe                       (2+1+4)
  1.Ka4xa3(nPa7)   2. a7-a8L
 3.La8xc6(nPc7)   4. c7-c8L
 5.Lc8-e6         6.Le6xd5(nPd7)
 7. d7-d8L        8.Ld8xf6(nPf7)
 9.Lf6-g7        10. f7-f8L+
   Kc5-b6 # / Lf8xg7(nLc1)#

Time(h:m:s): 00:02:28,14
2 variations (1/2)
Moves(All/W/B): 13746374/13462741/283633
Test: /No Setplay/All variations
/Tree 1-0-9740942 (990 MB)
Fairybadix-Serieselfbadix

White:  Ka4 Pd2
Black:  Kc5
Neutr:  Pa3 Pc6 Pd5 Pf6

6.7
Helpcheck (h+), doublemaximummer, grasshoppers.

Ilkka Blom
Problem Kiste, 126/4982
(C+)

     H+24                 MaxMax                        (2+2)
 1.Gg3-e5  Gf4-d6    2.Ge5-c7  Gd6-b8
 3.Gc7-a7  Gb8-b6    4.Ga7-c5  Gb6-d4
 5.Gc5-e3  Gd4-f2    6.Ge3-g1  Kb7-c8
 7.Gg1-e3  Gf2-d4    8.Ge3-c5  Gd4-b6
 9.Gc5-a7  Kc8-d7   10.Ga7-e7  Kd7-c6
11.Kh1-g2  Gb6-d6   12.Ge7-c5  Gd6-b4
13.Gc5-a3  Kc6-d7   14.Ga3-c5  Gb4-d6
15.Gc5-e7  Gd6-f8   16.Ge7-c7  Kd7-e6
17.Kg2-f1  Ke6-d5   18.Kf1-e2  Kd5-e4
19.Ke2-d1  Ke4-d3   20.Kd1-c1  Kd3-c4
21.Gc7-c3  Kc4-d5   22.Kc1-b2  Kd5-e6
23.Gc3-a1  Ke6-f7   24.Ga1-c3  Gf8-f6 +

Time(h:m:s): 00:00:00,55
1 variations (1/1)
Moves(All/W/B): 60791/25968/34823
Test: /No Setplay/All variations
/Tree 1-0-22673 (990 MB)      Fairybadix-Helpbadix

White:  Kb7 Gf4    Black:  Kh1 Gg3
 


More examples will be added later!
 

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