Does anyone need some puzzles for Halloween?

[rj329]

Great puzzle. Solution starts with 1.hxg4 axb4 2.f3 Kg3 3.Kg1

[Ajedrecista]

Hello Randall:

Great puzzle. Solution starts with 1.hxg4 axb4 2.f3 Kg3 3.Kg1

I got the idea thanks to your great hint. In fact, one of the starts on my own was this one, searching for a zugzwang without success. After reading your post, I found the idea of white king triangulation on d1-c2-c1 and SF 15 started to see winning evals at around 30 moves from the checkmate. Here is my proposed solution:

[pgn][Event ""]
[Site ""]
[Date "2022.11.05"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/pp1p3p/8/p3p3/1P1p2pk/1P5P/P2PPPP1/7K w - - 0 1"]
[Termination "normal"]
[PlyCount "225"]

1. hxg4 axb4 2. f3 Kg3 3. Kg1 e4 4. d3 e3 5. Kf1 Kf4 6. Ke1 Kg3 7. Kd1 Kf4
8. Kc2 Kg3 9. Kc1 Kf4 10. Kd1 Kg3 11. Ke1 Kf4 12. Kf1 Kg3 13. Kg1 a6 14.
Kf1 Kf4 15. Ke1 Kg3 16. Kd1 Kf4 17. Kc2 Kg3 18. Kc1 Kf4 19. Kd1 Kg3 20. Ke1
Kf4 21. Kf1 Kg3 22. Kg1 a5 23. Kf1 Kf4 24. Ke1 Kg3 25. Kd1 Kf4 26. Kc2 Kg3
27. Kc1 Kf4 28. Kd1 Kg3 29. Ke1 Kf4 30. Kf1 Kg3 31. Kg1 b6 32. Kf1 Kf4 33.
Ke1 Kg3 34. Kd1 Kf4 35. Kc2 Kg3 36. Kc1 Kf4 37. Kd1 Kg3 38. Ke1 Kf4 39. Kf1
Kg3 40. Kg1 b5 41. Kf1 Kf4 42. Ke1 Kg3 43. Kd1 Kf4 44. Kc2 Kg3 45. Kc1 Kf4
46. Kd1 Kg3 47. Ke1 Kf4 48. Kf1 Kg3 49. Kg1 d6 50. Kf1 Kf4 51. Ke1 Kg3 52.
Kd1 Kf4 53. Kc2 Kg3 54. Kc1 Kf4 55. Kd1 Kg3 56. Ke1 Kf4 57. Kf1 Kg3 58. Kg1
d5 59. Kf1 Kf4 60. Ke1 Kg3 61. Kd1 Kf4 62. Kc2 Kg3 63. Kc1 Kf4 64. Kd1 Kg3
65. Ke1 Kf4 66. Kf1 Kg3 67. Kg1 h6 68. Kf1 Kf4 69. Ke1 Kg3 70. Kd1 Kf4 71.
Kc2 Kg3 72. Kc1 Kf4 73. Kd1 Kg3 74. Ke1 Kf4 75. Kf1 Kg3 76. Kg1 a4 77. Kf1
Kf4 78. Ke1 Kg3 79. Kd1 Kf4 80. Kc2 Kg3 81. Kc1 Kf4 82. Kd1 Kg3 83. Ke1 Kf4
84. Kf1 Kg3 85. Kg1 a3 86. Kf1 Kf4 87. Ke1 Kg3 88. Kd1 Kf4 89. Kc2 Kg3 90.
Kc1 Kf4 91. Kd1 Kg3 92. Ke1 Kf4 93. Kf1 Kg3 94. Kg1 Kf4 95. Kh2 Kg5 96. Kg3
Kf6 97. Kh4 Ke5 98. g3 Kf6 99. Kh5 Kg7 100. g5 hxg5 101. Kxg5 Kf7 102. Kf5
Kg7 103. g4 Kf7 104. g5 Ke7 105. g6 Ke8 106. Kf6 Kd7 107. g7 Kc6 108. g8=Q
Kb7 109. Qd8 Kc6 110. Ke6 Kb7 111. Kd6 Ka7 112. Kc6 Ka6 113. Qa8# 1-0[/pgn]

There are other options such as ..., Kh4 instead of ..., Kf4 in many black moves, of course.

Waiting to the amazing Hobacle to confirm our solution. It would be great to include this puzzle in databases like YACPDB and PDB Dieschwalbe.

Regards from Spain.

Ajedrecista.

[peter]

Hello Randall:

Great puzzle. Solution starts with 1.hxg4 axb4 2.f3 Kg3 3.Kg1

I got the idea thanks to your great hint. In fact, one of the starts on my own was this one, searching for a zugzwang without success. After reading your post, I found the idea of white king triangulation on d1-c2-c1 and SF 15 started to see winning evals at around 30 moves from the checkmate. Here is my proposed solution:

[pgn][Event ""]
[Site ""]
[Date "2022.11.05"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/pp1p3p/8/p3p3/1P1p2pk/1P5P/P2PPPP1/7K w - - 0 1"]
[Termination "normal"]
[PlyCount "225"]

1. hxg4 axb4 2. f3 Kg3 3. Kg1 e4 4. d3 e3 5. Kf1 Kf4 6. Ke1 Kg3 7. Kd1 Kf4
8. Kc2 Kg3 9. Kc1 Kf4 10. Kd1 Kg3 11. Ke1 Kf4 12. Kf1 Kg3 13. Kg1 a6 14.
Kf1 Kf4 15. Ke1 Kg3 16. Kd1 Kf4 17. Kc2 Kg3 18. Kc1 Kf4 19. Kd1 Kg3 20. Ke1
Kf4 21. Kf1 Kg3 22. Kg1 a5 23. Kf1 Kf4 24. Ke1 Kg3 25. Kd1 Kf4 26. Kc2 Kg3
27. Kc1 Kf4 28. Kd1 Kg3 29. Ke1 Kf4 30. Kf1 Kg3 31. Kg1 b6 32. Kf1 Kf4 33.
Ke1 Kg3 34. Kd1 Kf4 35. Kc2 Kg3 36. Kc1 Kf4 37. Kd1 Kg3 38. Ke1 Kf4 39. Kf1
Kg3 40. Kg1 b5 41. Kf1 Kf4 42. Ke1 Kg3 43. Kd1 Kf4 44. Kc2 Kg3 45. Kc1 Kf4
46. Kd1 Kg3 47. Ke1 Kf4 48. Kf1 Kg3 49. Kg1 d6 50. Kf1 Kf4 51. Ke1 Kg3 52.
Kd1 Kf4 53. Kc2 Kg3 54. Kc1 Kf4 55. Kd1 Kg3 56. Ke1 Kf4 57. Kf1 Kg3 58. Kg1
d5 59. Kf1 Kf4 60. Ke1 Kg3 61. Kd1 Kf4 62. Kc2 Kg3 63. Kc1 Kf4 64. Kd1 Kg3
65. Ke1 Kf4 66. Kf1 Kg3 67. Kg1 h6 68. Kf1 Kf4 69. Ke1 Kg3 70. Kd1 Kf4 71.
Kc2 Kg3 72. Kc1 Kf4 73. Kd1 Kg3 74. Ke1 Kf4 75. Kf1 Kg3 76. Kg1 a4 77. Kf1
Kf4 78. Ke1 Kg3 79. Kd1 Kf4 80. Kc2 Kg3 81. Kc1 Kf4 82. Kd1 Kg3 83. Ke1 Kf4
84. Kf1 Kg3 85. Kg1 a3 86. Kf1 Kf4 87. Ke1 Kg3 88. Kd1 Kf4 89. Kc2 Kg3 90.
Kc1 Kf4 91. Kd1 Kg3 92. Ke1 Kf4 93. Kf1 Kg3 94. Kg1 Kf4 95. Kh2 Kg5 96. Kg3
Kf6 97. Kh4 Ke5 98. g3 Kf6 99. Kh5 Kg7 100. g5 hxg5 101. Kxg5 Kf7 102. Kf5
Kg7 103. g4 Kf7 104. g5 Ke7 105. g6 Ke8 106. Kf6 Kd7 107. g7 Kc6 108. g8=Q
Kb7 109. Qd8 Kc6 110. Ke6 Kb7 111. Kd6 Ka7 112. Kc6 Ka6 113. Qa8# 1-0[/pgn]

There are other options such as ..., Kh4 instead of ..., Kf4 in many black moves, of course.

Waiting to the amazing Hobacle to confirm our solution. It would be great to include this puzzle in databases like YACPDB and PDB Dieschwalbe.

Haha, thanks to rj329 and to you!

I was at these first moves too but didn't find the right continuations, have to confess, I did let go rather soon, thinking Hobacle could have been wrong as he happened to be now and then with long DTM- puzzles sooner on too, shame on me

Very fine indeed,.
Hobacle should send this one or one of his other fine works to one of the problemist- journals, you mention Schwalbe,

https://www.dieschwalbe.de/

This one e.g is of very much impact, I'd have an email- adress of the "Kassenwart", but as for YACPDB, it's an online-database "only", I think, puzzles have to have first prints in journals, maybe participating in competitions that are held by e.g. Schwalbe regularly too. Walter Eigenmann, the owner of Glarean magazine publicises first prints often too. Not until then it's registered in databases like YACPDB or Harold van der Heijden's.

I'd say too, puzzles like this new one should appear in refereed journals, regards

[Hobacle]

Hello Randall:

Great puzzle. Solution starts with 1.hxg4 axb4 2.f3 Kg3 3.Kg1

I got the idea thanks to your great hint. In fact, one of the starts on my own was this one, searching for a zugzwang without success. After reading your post, I found the idea of white king triangulation on d1-c2-c1 and SF 15 started to see winning evals at around 30 moves from the checkmate. Here is my proposed solution:

[pgn][Event ""]
[Site ""]
[Date "2022.11.05"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/pp1p3p/8/p3p3/1P1p2pk/1P5P/P2PPPP1/7K w - - 0 1"]
[Termination "normal"]
[PlyCount "225"]

1. hxg4 axb4 2. f3 Kg3 3. Kg1 e4 4. d3 e3 5. Kf1 Kf4 6. Ke1 Kg3 7. Kd1 Kf4
8. Kc2 Kg3 9. Kc1 Kf4 10. Kd1 Kg3 11. Ke1 Kf4 12. Kf1 Kg3 13. Kg1 a6 14.
Kf1 Kf4 15. Ke1 Kg3 16. Kd1 Kf4 17. Kc2 Kg3 18. Kc1 Kf4 19. Kd1 Kg3 20. Ke1
Kf4 21. Kf1 Kg3 22. Kg1 a5 23. Kf1 Kf4 24. Ke1 Kg3 25. Kd1 Kf4 26. Kc2 Kg3
27. Kc1 Kf4 28. Kd1 Kg3 29. Ke1 Kf4 30. Kf1 Kg3 31. Kg1 b6 32. Kf1 Kf4 33.
Ke1 Kg3 34. Kd1 Kf4 35. Kc2 Kg3 36. Kc1 Kf4 37. Kd1 Kg3 38. Ke1 Kf4 39. Kf1
Kg3 40. Kg1 b5 41. Kf1 Kf4 42. Ke1 Kg3 43. Kd1 Kf4 44. Kc2 Kg3 45. Kc1 Kf4
46. Kd1 Kg3 47. Ke1 Kf4 48. Kf1 Kg3 49. Kg1 d6 50. Kf1 Kf4 51. Ke1 Kg3 52.
Kd1 Kf4 53. Kc2 Kg3 54. Kc1 Kf4 55. Kd1 Kg3 56. Ke1 Kf4 57. Kf1 Kg3 58. Kg1
d5 59. Kf1 Kf4 60. Ke1 Kg3 61. Kd1 Kf4 62. Kc2 Kg3 63. Kc1 Kf4 64. Kd1 Kg3
65. Ke1 Kf4 66. Kf1 Kg3 67. Kg1 h6 68. Kf1 Kf4 69. Ke1 Kg3 70. Kd1 Kf4 71.
Kc2 Kg3 72. Kc1 Kf4 73. Kd1 Kg3 74. Ke1 Kf4 75. Kf1 Kg3 76. Kg1 a4 77. Kf1
Kf4 78. Ke1 Kg3 79. Kd1 Kf4 80. Kc2 Kg3 81. Kc1 Kf4 82. Kd1 Kg3 83. Ke1 Kf4
84. Kf1 Kg3 85. Kg1 a3 86. Kf1 Kf4 87. Ke1 Kg3 88. Kd1 Kf4 89. Kc2 Kg3 90.
Kc1 Kf4 91. Kd1 Kg3 92. Ke1 Kf4 93. Kf1 Kg3 94. Kg1 Kf4 95. Kh2 Kg5 96. Kg3
Kf6 97. Kh4 Ke5 98. g3 Kf6 99. Kh5 Kg7 100. g5 hxg5 101. Kxg5 Kf7 102. Kf5
Kg7 103. g4 Kf7 104. g5 Ke7 105. g6 Ke8 106. Kf6 Kd7 107. g7 Kc6 108. g8=Q
Kb7 109. Qd8 Kc6 110. Ke6 Kb7 111. Kd6 Ka7 112. Kc6 Ka6 113. Qa8# 1-0[/pgn]

There are other options such as ..., Kh4 instead of ..., Kf4 in many black moves, of course.

Waiting to the amazing Hobacle to confirm our solution. It would be great to include this puzzle in databases like YACPDB and PDB Dieschwalbe.

Regards from Spain.

Ajedrecista.

The solution you found was right. But please don't take it anywhere except here, at least until Hard Puzzle for Christmas is out, thanks.

[peter]

Hello Randall:

Great puzzle. Solution starts with 1.hxg4 axb4 2.f3 Kg3 3.Kg1

I got the idea thanks to your great hint. In fact, one of the starts on my own was this one, searching for a zugzwang without success. After reading your post, I found the idea of white king triangulation on d1-c2-c1 and SF 15 started to see winning evals at around 30 moves from the checkmate. Here is my proposed solution:

[pgn][Event ""]
[Site ""]
[Date "2022.11.05"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/pp1p3p/8/p3p3/1P1p2pk/1P5P/P2PPPP1/7K w - - 0 1"]
[Termination "normal"]
[PlyCount "225"]

1. hxg4 axb4 2. f3 Kg3 3. Kg1 e4 4. d3 e3 5. Kf1 Kf4 6. Ke1 Kg3 7. Kd1 Kf4
8. Kc2 Kg3 9. Kc1 Kf4 10. Kd1 Kg3 11. Ke1 Kf4 12. Kf1 Kg3 13. Kg1 a6 14.
Kf1 Kf4 15. Ke1 Kg3 16. Kd1 Kf4 17. Kc2 Kg3 18. Kc1 Kf4 19. Kd1 Kg3 20. Ke1
Kf4 21. Kf1 Kg3 22. Kg1 a5 23. Kf1 Kf4 24. Ke1 Kg3 25. Kd1 Kf4 26. Kc2 Kg3
27. Kc1 Kf4 28. Kd1 Kg3 29. Ke1 Kf4 30. Kf1 Kg3 31. Kg1 b6 32. Kf1 Kf4 33.
Ke1 Kg3 34. Kd1 Kf4 35. Kc2 Kg3 36. Kc1 Kf4 37. Kd1 Kg3 38. Ke1 Kf4 39. Kf1
Kg3 40. Kg1 b5 41. Kf1 Kf4 42. Ke1 Kg3 43. Kd1 Kf4 44. Kc2 Kg3 45. Kc1 Kf4
46. Kd1 Kg3 47. Ke1 Kf4 48. Kf1 Kg3 49. Kg1 d6 50. Kf1 Kf4 51. Ke1 Kg3 52.
Kd1 Kf4 53. Kc2 Kg3 54. Kc1 Kf4 55. Kd1 Kg3 56. Ke1 Kf4 57. Kf1 Kg3 58. Kg1
d5 59. Kf1 Kf4 60. Ke1 Kg3 61. Kd1 Kf4 62. Kc2 Kg3 63. Kc1 Kf4 64. Kd1 Kg3
65. Ke1 Kf4 66. Kf1 Kg3 67. Kg1 h6 68. Kf1 Kf4 69. Ke1 Kg3 70. Kd1 Kf4 71.
Kc2 Kg3 72. Kc1 Kf4 73. Kd1 Kg3 74. Ke1 Kf4 75. Kf1 Kg3 76. Kg1 a4 77. Kf1
Kf4 78. Ke1 Kg3 79. Kd1 Kf4 80. Kc2 Kg3 81. Kc1 Kf4 82. Kd1 Kg3 83. Ke1 Kf4
84. Kf1 Kg3 85. Kg1 a3 86. Kf1 Kf4 87. Ke1 Kg3 88. Kd1 Kf4 89. Kc2 Kg3 90.
Kc1 Kf4 91. Kd1 Kg3 92. Ke1 Kf4 93. Kf1 Kg3 94. Kg1 Kf4 95. Kh2 Kg5 96. Kg3
Kf6 97. Kh4 Ke5 98. g3 Kf6 99. Kh5 Kg7 100. g5 hxg5 101. Kxg5 Kf7 102. Kf5
Kg7 103. g4 Kf7 104. g5 Ke7 105. g6 Ke8 106. Kf6 Kd7 107. g7 Kc6 108. g8=Q
Kb7 109. Qd8 Kc6 110. Ke6 Kb7 111. Kd6 Ka7 112. Kc6 Ka6 113. Qa8# 1-0[/pgn]

There are other options such as ..., Kh4 instead of ..., Kf4 in many black moves, of course.

Waiting to the amazing Hobacle to confirm our solution. It would be great to include this puzzle in databases like YACPDB and PDB Dieschwalbe.

Regards from Spain.

Ajedrecista.

The solution you found was right. But please don't take it anywhere except here, at least until Hard Puzzle for Christmas is out, thanks.

So you sent it to a journal already too?
If not, don't miss it for too long, or editor of such maybe wouldn't call it first print then, you see?

Have a look here, if you want,

https://glarean-magazin.ch/2009/10/01/m ... e-urdruck/

as you can read, there had been a preprint in Matplus too and yet the study made it into Gerd Josten's book A Study a Piece too later on.
The way, studies get famous aren't dependent on first print only, but juries tend to prefer the brand new ones of course.

Applaus_to_Hobacle_regards

[Ajedrecista]

Hello:

The solution you found was right. But please don't take it anywhere except here, at least until Hard Puzzle for Christmas is out, thanks.

You can be sure from me. I only said that it is a great puzzle and more people could try it, but whatever you want is fine. I enjoyed a lot the moment when I was smarter than SF 15 and Chest 5.2, however still using SF 15 for the input of moves to test the idea.

Thank you very much! Waiting for the Hard Puzzle for Christmas.

Regards from Spain.

Ajedrecista.

[Vinvin]

Hello Randall:

Great puzzle. Solution starts with 1.hxg4 axb4 2.f3 Kg3 3.Kg1

I got the idea thanks to your great hint. In fact, one of the starts on my own was this one, searching for a zugzwang without success. After reading your post, I found the idea of white king triangulation on d1-c2-c1 and SF 15 started to see winning evals at around 30 moves from the checkmate. Here is my proposed solution:

[pgn][Event ""]
[Site ""]
[Date "2022.11.05"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/pp1p3p/8/p3p3/1P1p2pk/1P5P/P2PPPP1/7K w - - 0 1"]
[Termination "normal"]
[PlyCount "225"]

1. hxg4 axb4 2. f3 Kg3 3. Kg1 e4 4. d3 e3 5. Kf1 Kf4 6. Ke1 Kg3 7. Kd1 Kf4
8. Kc2 Kg3 9. Kc1 Kf4 10. Kd1 Kg3 11. Ke1 Kf4 12. Kf1 Kg3 13. Kg1 a6 14.
Kf1 Kf4 15. Ke1 Kg3 16. Kd1 Kf4 17. Kc2 Kg3 18. Kc1 Kf4 19. Kd1 Kg3 20. Ke1
Kf4 21. Kf1 Kg3 22. Kg1 a5 23. Kf1 Kf4 24. Ke1 Kg3 25. Kd1 Kf4 26. Kc2 Kg3
27. Kc1 Kf4 28. Kd1 Kg3 29. Ke1 Kf4 30. Kf1 Kg3 31. Kg1 b6 32. Kf1 Kf4 33.
Ke1 Kg3 34. Kd1 Kf4 35. Kc2 Kg3 36. Kc1 Kf4 37. Kd1 Kg3 38. Ke1 Kf4 39. Kf1
Kg3 40. Kg1 b5 41. Kf1 Kf4 42. Ke1 Kg3 43. Kd1 Kf4 44. Kc2 Kg3 45. Kc1 Kf4
46. Kd1 Kg3 47. Ke1 Kf4 48. Kf1 Kg3 49. Kg1 d6 50. Kf1 Kf4 51. Ke1 Kg3 52.
Kd1 Kf4 53. Kc2 Kg3 54. Kc1 Kf4 55. Kd1 Kg3 56. Ke1 Kf4 57. Kf1 Kg3 58. Kg1
d5 59. Kf1 Kf4 60. Ke1 Kg3 61. Kd1 Kf4 62. Kc2 Kg3 63. Kc1 Kf4 64. Kd1 Kg3
65. Ke1 Kf4 66. Kf1 Kg3 67. Kg1 h6 68. Kf1 Kf4 69. Ke1 Kg3 70. Kd1 Kf4 71.
Kc2 Kg3 72. Kc1 Kf4 73. Kd1 Kg3 74. Ke1 Kf4 75. Kf1 Kg3 76. Kg1 a4 77. Kf1
Kf4 78. Ke1 Kg3 79. Kd1 Kf4 80. Kc2 Kg3 81. Kc1 Kf4 82. Kd1 Kg3 83. Ke1 Kf4
84. Kf1 Kg3 85. Kg1 a3 86. Kf1 Kf4 87. Ke1 Kg3 88. Kd1 Kf4 89. Kc2 Kg3 90.
Kc1 Kf4 91. Kd1 Kg3 92. Ke1 Kf4 93. Kf1 Kg3 94. Kg1 Kf4 95. Kh2 Kg5 96. Kg3
Kf6 97. Kh4 Ke5 98. g3 Kf6 99. Kh5 Kg7 100. g5 hxg5 101. Kxg5 Kf7 102. Kf5
Kg7 103. g4 Kf7 104. g5 Ke7 105. g6 Ke8 106. Kf6 Kd7 107. g7 Kc6 108. g8=Q
Kb7 109. Qd8 Kc6 110. Ke6 Kb7 111. Kd6 Ka7 112. Kc6 Ka6 113. Qa8# 1-0[/pgn]

There are other options such as ..., Kh4 instead of ..., Kf4 in many black moves, of course.

Waiting to the amazing Hobacle to confirm our solution. It would be great to include this puzzle in databases like YACPDB and PDB Dieschwalbe.

Regards from Spain.

Ajedrecista.

The solution you found was right. But please don't take it anywhere except here, at least until Hard Puzzle for Christmas is out, thanks.

Thanks for this nice puzzle !!